Saitama Prefecture
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Saitama Prefecture ARAI HELMET LTD (Saitama City) A helmet maker whose products are selected in Confidence by top world drivers. SUMITA OPTICAL GLASS, INC. (Saitama City) Manufactures high-performance special optical glass products ahead in the world PORITE CORPORATION (Saitama City) Porite specializes ultra-small, high-performance oil-impregnated bearings for miniature motors, optical devices and mobile phones INDUSTRIA (TAKAHASHI CO., LTD) (Iruma City) Develops filters boasting remarkable 98% filtration ratio ERC INC (Kawaguchi City) World leader of solvent degassing equipment and refractive index detectors KODAMA FOUNDRY CO., LTD (Kawaguchi City) Long-term durable centrifuge for manufacturing concrete piles MURATA SEISAKUSHO CO., LTD (Kawaguchi City) Manufactures ultra-thin castings with excellent abrasion-resistant property 56 NAGAI KIKAI CHUZO CO., LTD (Kawaguchi City) Shuts out radioactive ray by using special casting technology GNS CO., LTD (Sakado City) Reinforces buildings by filling high viscous adhesive at high pressure CHICHIBU DENSHI CORPORATION (Chichibu City) World-leading high precision polishing technology supports semiconductor industry KAMAKURA KOKI CO., LTD (Warabi City) Giant in the world, backed by technology development capability Netsushin Co., Ltd (Iruma Gun) Total thermometer company, highlighted by platinum resistance thermometer element KGS CORPORATION (Hiki Gun) The change in the way of thinking supports Braille communication equipment for the visually impaired person 57 ARAI A helmet maker whose HELMET LTD products are selected in Confidence by top world 2-12 Azuma-cho, Omiya-ku, Saitama City, drivers. Saitama Prefecture Established in 1976 TEL +81-48-641-3825 Michio Arai http://www.arai.co.jp President The company gains more than 50% of the domestic share for thermohardening design helmets. Over half of F1 drivers use Arai helmets due to their confidence in the reliability of those products. The Arai Standard” – an original in-house standard Some other helmet companies emphasize comfort as a top priority, whereas “Arai” concentrates on energy management at the time of impact. This concept is fully manifested in the establishment of the in-house standard – the “Arai Standard” – to strictly implement product performance as a helmet manufacturer. The requirements of Arai Standard exceed those of the Snell Standard (well known as one of the most stringent helmet standards in the world) and therefore, helmets made to the Arai Standard are assured to meet or exceed Snell Standard requirements. The in-house Arai Standard is applied to all Arai helmets marketed as Snell certified products. Regardless of whether the helmets are destined for racing or street use, products passing the in-house standard are certified as meeting Snell Standard requirements. Many top drivers use Arai helmets Confidence in Arai helmets is not only shared by many domestic racers, but also by more than half of F1 drivers. GP-5RC (Racing Carbon) 58 SUMITA Manufactures OPTICAL high-performance special GLASS,INC. optical glass products 4-7-25 Harigaya, Urawa-ku, ahead in the world Saitama City, Saitama Prefecture Masatoshi Sumita President Established in 1953 TEL +81-48-832-3165 http://www.sumita-opt.co.jp Sumita Optical Glass, for the first time in the world, manufactured ultra-precision molding glass lenses, which enables mass-production of aspherical lenses for digital cameras at low costs and high-performance special optical glass products (phosphorescent glass). The company also enjoys 60% of the market share in the manufacturing of optical glass fibers in medical, lighting, measuring, and other non-telecom areas. Pushes ahead with domestic production of optical glass in the country of world’s leading producer of optical equipment Since its establishment in 1953, Sumita Optical Glass has been pushing ahead with the domestic production of optical glass and making great efforts to establish precision molding technology to achieve high optical performance. Through the development of low-temperature molding precision optical glass, the company has realized the major cost cutbacks Low-dispersion optical and mass-production of aspherical lenses for digital cameras, etc. glass “Photaron” Makes the substance with performance equal to artificial crystal fluorite from optical glass – the long-awaited dream of optical researchers The company, for the first time in the world, successfully made the substance with performance equal to artificial crystal fluorite from optical glass. This achievement was evaluated highly, which lead to the winning of “Excellent New Product Award” from US Photonics Spectra. Moreover, another “Excellent New Product Award” was given to the company for the Optical glass for development of optical glass for precision molding lenses with properties of precision molding lenses high refractive index and high dispersions. with properties of high At present, Sumita’s optical glass is widely applied in various way which refractive and high include: lenses for cameras, video equipment, binoculars, microscopes; dispersions special filtered glass; and optical lenses for DVD and other multimedia equipment as their core part. The company’s product lineups are as many as 200 items. Generates unrivaled HVA products by pursing original optical glass fiber technology The company’s original optical glass fiber allowed them to quickly establish the integrated system of production from raw materials to finished products. The company’s optical glass fiber technology is used in medicine, lighting, measuring and other wide-ranged areas, and it also Fiberscopes supports the foundation of optoelectronics, as a strategic area. 59 PORITE Porite specializes CORPORATION ultra-small, 2-121 Nissin-cho, Kita-ku, high-performance Saitama City, Saitama Prefecture oil-impregnated Established in 1952 bearings for miniature TEL +81-48-653-2222 motors, optical devices http://www.porite.co.jp/ and mobile phones Masanori Kikuchi President The company manufactures oil-impregnated bearings for OA/AV devices, PC and other IT-related consumer electronics, mobiles phones, and for automobile electrical equipment including power windows and car navigation systems. The company’s technology leads the world and heralds the movements of the industry Porite’s sintered oil-impregnated bearings are self-lubricating bearings where the porous makeups formed in the powder metallurgy technique are imbued with lubricant. Since the regular lubricating is unnecessary, the oil-impregnated bearings are thus the indispensable parts for the workout of the miniature motors. Miniature motor is being widely used in products such as home electronic appliances, OA/AV equipment, PC-related equipment, mobile phones, and automobile electric devices and Porite has being incessantly innovated the smaller-size and high-performance products in order to meet these demands. Mainstay small-sized oil-impregnated bearings Deepen the existing technologies with bold thinking out from obstinate concepts Porite enjoys the overwhelming share of oil-impregnated bearings for DVD/CD and other optical disc drive motors. Porite, responding the need for smaller and high-performance products, has achieved excellent performance with high-precision all-in-one products that exceed conventional products by far. The company has gained a strong support from end users to a degree that they directly appoint Porite even though the company is a mere part maker. Backed by original technologies, Porite’s products spread All-in-one oil-impregnated bearings over the world Porite upholds a top domestic share for oil-impregnated bearings used in miniature motors. The company also builds up an overseas infrastructure by establishing production bases in Taiwan, Singapore, Malaysia, China, Thailand, and US, as well as sales footholds in Hong Kong, France and US, through which more than 6 billion pieces of products are supplied annually. In addition to oil-impregnated bearings, the company manufactures machine structure parts, MIM products, and gear units for electric power tools using high-strength high-accuracy sintered parts. Among others, the company’s Head Office in Japan is determined to play a role of technology development center and continuously strive for the development of original technologies. Ultra-small oil-impregnated bearings 60 INDUSTRIA Develops filters boasting (TAKAHASHI remarkable 98% CO., LTD) filtration ratio 2700 Miyadera, Iruma City, Saitama Prefecture Established in 1991 TEL +81-4-2934-6921 Kiichi Takahashi http://www.industria.co.jp President Industria has developed a new filter which filters extremely-fine particles without using elements (filtering materials). Environmentally-friendly and cost-effective filters expand their applications, including into automakers. Top maker of elementless filter Industria had seen problems in their oil filtering circulation devices attached to the cutting line of their machine tools to remove cutting waste. Since the devices required frequent element exchange, it generated losses, both costwise and timewise. To solve this problem, Industria took advantage of the development subsidy program offered by Saitama Prefecture, used the company’s own technology, and developed “FILSTAR,” a filter free from elements (filtering materials). “FILSTAR” boasts remarkable 98% filtration ratio “FILSTAR” is the system to filter fine particles based on the principles of centrifugal separation and sedimentation. “NEW FILSTAR, ” which was developed and commercialized jointly