Ropes 2015年12月01日 08時00分

“Rope” is one of important tools among fishing. We offer a wide variety of products depending on any applications. Synthetic fiber rope We have 3-strand and 8-strand ropes. ?Polyethylene synthetic fiber rope ?Polypropylene synthetic fiber rope ?Polyester synthetic fiber rope ?Mixing stranded synthetic fiber rope Compound rope Compound rope is produced combination with high strength wire strand and synthetic fiber rope. It is mainly used for trawl nets. Product list # Classification Name Fiber type Use Heat treatment 1 3-strand Tailex rope and containing lead Polypropylene Trap nets, Fish farming With 2 3-strand Dialonlite rope and containing lead Polypropylene Trap nets, Fish farming, Purse seine nets, Trawl Without 3 3-strand Hopeline rope Polypropylene Trap nets, fish farming nets Without 4 3-strand Ryhilene rope and containing lead Polyethylene Trap nets, Fish farming Without 5 3-strand Tailenehard rope, and containing lead, NK standard product Polyethylene Trap nets, Fish farming, Ship hawser (NK) With(without NK) 6 3-strand Tailex hard rope Polypropylene + Super-strong PE wrapping twist Trawl With 7 8-strand Tailex hard cross rope Polypropylene Trap nets, Fish farming, Purse seine nets, Trawl With 8 8-strand Tailex hard cross rope and containing lead Polypropylene Trap nets, Fish farming, Purse seine nets, Trawl With 9 8-strand Tailenehard cross rope and containing lead Polyethylene Trap nets, Fish farming, Ship hawser (NK) With(Without NK) 10 8-strand Ryhilene cross rope and containing lead Polyethylene Trap nets, Fish farming , Purse seine nets, Trawl Without 11 8-strand Tetrone cross rope and containing lead Tetrone Trap nets, fish farming nets, onshore nets With 12 8-strand Polyethylene & polyester cross rope and containing lead Polyethylene + Tetrone Trap nets, Fish farming With # Classification Name 13 Compound rope 6-strand SECP rope 14 6-strand Polyethylene & polyester CP rope 15 6-strand Danline CP rope and tape winding (for trap nets) 16 4-strand Danline CP rope 17 3-strand Danline CP rope 18 6-strand Polyester CP rope 19 Combination rope 3-strand 6-strand PP 20 Serving wire Vinylon & Polyethylene rope and Vinylon rope

We renewed our home page. 2015年11月30日 15時00分

Privacy policy 2015年11月30日 06時37分

Nitto Seimo Co., Ltd. (I say "us" as follows.) recognizes importance of the personal information in the high information-oriented society which the Internet and an IT technique, rapid development of the information system brought and thinks that it is basics of our company activity to protect personal information and is social duty. I carry it out by the following actions about our privacy policy. [about safety measures] We publicize safety measures according to laws and ordinances and our security policy to an employee to secure secrecy of the personal information, accuracy and are thorough and shall act for injustice access to personal information, manipulation, destruction, the prevention of the leak. I call IT, and the personal information of the order information, please let me use it in the following purposes the inquiry contents from a visitor [about the acquisition, the use, management of the personal information]. We do not change the usage about the personal information of a visitor prescribed in Honjo without the agreement of the visitor. In addition, I can require so when the use in the specific use is refused and when cancellation of the registration is hoped for. ETo reply the inquiry contents of the visitor ETo reply application to employment information In addition, when it is necessary to contact a visitor for some reason [the observance of laws and ordinances, the model] We observe other models applied to the observance of laws and ordinances about the personal information and personal information protection. In addition, I review our security policy program continuously as needed to meet these laws and ordinances and models and am improved. We do not offer personal information to the third party [about a third party offer of the personal information] unless they fix it for laws and ordinances as far as there is not the prior agreement of the person. [reference about the privacy policy] when there are questions, please inform it of the personal information protection in the homepage than follows or an inquiry form. Contact information Nitto Seimo Co., Ltd. 721-0953 14-14, Ichimonjicho, Fukuyama-shi, Hiroshima phone number: 084-953-1234

Simulation 2015年11月30日 06時24分

What is the NaLA-System? NaLa is an unprecedented new net shape simulation system which was developed through industry–university collaboration with Associate professor Tsutomu Takagi of Kinki University (a professor of Hokkaido University now). This system displays the entire shape of fishing gear in water which is practically hard to see and changes in net shape in optional current directions and speeds on your PC monitor as 3D moving images by the numerical calculation. It allows analyzing the volume of the net, the arrival depth and the load on the ropes, etc. This NaLA system allows us to supply the most appropriate fishing gear which customer require. Outline of system 1. Design screen 2. Modeling 3. Calculation 4. Visualization Analysis example Tuna farming net Surface and medium layer trawl net We consider fishing gear specifications that match the performance of a vessel by understand differences in the resistance and opening of net mouth by trawl speed. Patent (No. 3870359) was obtained in collaboration with Kinki University. Difference in drift of net by material density Difference in drift of net by mesh size *Net size: 20m × 20m Weight cord on net end (1.5kg/m) Drift: 0.2kt Difference in drift of fish farming net by material density Polyethylene(ρ=0.95) NEK(ρ=1.59) *Net size: Φ30m x D 12m Underwater weight (Net, Sandbag and Bottom rope): About 1t Net type: 240ply 75mm

Fishing Method Development, Oceanographic Survey 2015年11月30日 06時24分

Float-sink type farming cage Most domestic quiet waters suitable for farming are already in use. So the technology enabling stable Bluefin tuna farming even in wavy and current open waters which were not suitable for it is required. In order to solve this problem, we have developed the world’s first “Large sink-float type farming facilities” using an HDPE (high density polyethylene) pipe. It sinks and floats while farming. Primary features ?Withstands typhoons and storm The cage withstands from 3m or higher wave attack by sinking before the impact. ?Can be used in non-use sea area New fish farming is allowed in sea area which were not used such as out-of-bay ?Various result by sinking Avoidance from red tide and muddy water, Suppression and prevention from organisms attached to the net and parasites, Feeding in proper temperature water zones, Measures for sun protection, and Prevention from theft Φ50m farming cage: Sinking operation Φ30m farming cage: Floating operation Pneumatic hauling net The aging and labor shortage is serious problems for trap nets operation. Nitto Seimo is developing pneumatic hauling nets to support the hauling operations. The world’s first technology (Patent pending) of settling an entire large farming cage is also applied to trap nets, and operations leading fish to the final section of the bag net can be reduced. Oceanographic surveys Understanding of seabed topography is important to designing nets and increasing fish catch efficiency in installation of trap nets and fish farming nets. Nitto Seimo is offering various surveys and support depending on customer needs. ･We analyze data of fishing ground surveys and support installation of the most appropriate nets in consideration of geography, distance from adjacent fishing grounds and active fishing periods. ･We create drawings of seabed topographies using fish detectors and sonar. ･We judge the fishing ground by understand installation directions and current speed by placing a current meter near the net for a while because the installation angle against a current is an important element in preventing the deformation. ･When any reef or rock is found by the survey, we make sure the geometry by ROV (Remotely operated vehicle). ･It is possible to visually confirm an installed net and breakage of a net. ･We grasp movement of school of fish around and in the net by installation of sonars. ･We measure drift of the net by a net depth meter.

Conductive net tether 2015年11月30日 06時24分

Orbiting debris (space debris) is dangerous because they collide with operating satellites and destruction. And they could be broken to millions small pieces by collisions each other. The number of debris could exponentially increase by the collisions. Before the area around orbit would become unusable because of great deal of them, it is necessary to take measures to prevent the problem. “A debris removal system” is a method which can basically solve the debris problem. Nitto Seimo strives to develop a string like net, called a “Conductive net tether”, in collaboration with JAXA based on our knotless net technology. The string can conduct electricity and it is an essential material to the system About Conductive net tether

EK 2015年11月30日 06時23分

Nitto Seimo high specific gravity net Ester K Long-awaited reproduction “EK” was used for trap nets domestically until 2000, and earned a very good reputation; however, we suspend the sales because unfortunately the original yarn manufacturer was discontinued. As we received strong demand from our customer that they need such nets which would not drift by current, like the past “EK”, so we try internal manufacturing and mass-production of a metallic nylon. Now we succeeded in reproduction sales. This is better in specific gravity and strength than the “SG” and “Polyester” presently sold. Net type EK SG polyester Specific gravity ◎ ○ △ Strength of the net yarn ○ △ ○

About knotless nets 2015年11月30日 06時22分

Our knotless net was born in 1925. All preceding nets were knotted nets. It was understood that the knotless net was the ideal, however, it was considered impossible to mass-produce them. The founder of Nitto Seimo, Teruaki Kobayashi, succeeded in the world’s first mass-production and put these nets onto the market. Since then, Nitto Seimo has always leaded the field of knotless nets. Knotless net Knotted net 無結節網とは 無結節網は撚をかけながら糸を互いに交差させて網目を作ります。 結び目が無いので、従来の網と比べて強度のある網を作る事が出来ます。 更に有結節網と比べ、結節部分が平坦なので嵩張らず軽量な網を作る事が出来ます。 その上、水中での抵抗が減る事、魚が傷つき難くなる事で、魚の商品価値が高まる等、非常に多くのメリットがあります。 有結節網とは 有結節網とは、撚った糸を結び合わせて作ります。 しかしながら、結び目部分は引っ張る力には弱く、網が破れる大きな原因の一つとなっていました。 更に、結節部分が、飛び出している為、水中での抵抗を受ける事、更に結節で魚を傷め、商品価値が下がる事もありました。 Advantages of knotless nets Our knotless nets offer the following significant advantages in comparison with knotted nets conventionally used. Strength All knotted line is broken at the knot by strong tension because the tension is concentrated on the knot. The knotless net doesn’t have the knot. It is 20 to 30% stronger than knotted nets. Lightweight and no bulky The knotless net is 20 to 40% lighter than knotted nets of the same type and number of fiber. It is similarly less bulked so it saves space on a fishing vessel. Less water resistance The knotless nets show good performances in settling, drifting and draining because there are no knots. The net drifting is important not only for ensuring enough space for fish to swim but also for safety operation. Keeping fish quality Fish get damage by jumping or struggling in nets. The knotless net is smoother than knotted one so it keeps fish less damage. The fish is expected to be rated high. Knotless net Knotted net (trawler)

Technology Development 2015年11月30日 06時22分

We develop products which the features and the structures are utilized customer inquiry and demands. For example, we developed a shopping bag using the mesh wideness and a security device using easy entanglement with fine fiber. We pursue net possibility and develop new product by using a new material when conductivity and high strength are required. Material Development Fishing Method Development, Oceanographic Survey Simulation For Space debris

Quality Control 2015年11月30日 06時22分

“Fukuyama Factory” is located in Fukuyama City, Hiroshima Prefecture and “Hakodate Factory” is located in Hokuto City, Hokkaido. The “Fukuyama Factory” mainly manufactures knotless nets and “Moji” nets. The “Hakodate Factory” manufactures various ropes, special knotless nets and knotted nets. Each factory keeps respect of traditional “Manufacturing” which we have been engaged in for many years, in addition there is a QMS promotion chamber individually for controlling quality by the latest management system. Both factories get “ISO9001: 2015” certifications. Hakodate factory is certified by “JIS” and “NK” for ropes. Registration situation Certificate Number JQA-QMA13688 Organization NITTO SEIMO CO.,LTD. PRODUCTION DIVISION Scope of Registration DESIGN / DEVELOPMENT AND MANUFACTURE OF KNOTLESS NET, MOJI NET AND ROPE Associated Organization FUKUYAMA PLANT: 14-14 ICHIMONJI-CHO, FUKUYAMA-SHI, HIROSHIMA, JAPAN [MANUFACTURE OF KNOTLESS NET AND MOJI NET] HAKODATE PLANT: 1-3-1 NANAEHAMA, HOKUTO-SHI, HOKKAIDO, JAPAN [MANUFACTURE OF KNOTLESS NET AND ROPE] Registration Date August 1,2008 Certifying Body Japan Quality Assuarance Organization (JQA)