Nippon BELL Parts Co., Ltd.
Japanese precision-parts maker founded in 1973, supplying specialty wire materials, paper-feed rollers and micro-joining components for communications, electronics, information equipment, automotive and medical applications.
Last updated September 29, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Nippon BELL Parts Co., Ltd. (日本ベルパーツ株式会社, often abbreviated NBP) is a Japanese precision-parts and materials manufacturer headquartered in Yachiyo, Chiba. Founded in 1973 in Funabashi, Chiba, the company was established to develop, prototype and manufacture materials and components for NTT-related communications, electronics and information equipment. Its founding president was Takeo Ota, and initial capital was 10 million yen. The company's core competence lies in specialty metal wire and strip materials and in precision mechanical components. Its product lines include TA (tough-pitch annealed) wire and profile wire for communications and electronic equipment; high-precision paper-feed rollers and high-friction belt pulleys for information equipment; micro-joining processing; parts for food-manufacturing equipment; and evaluation technologies. Over the decades NBP has developed and mass-produced items such as Cu-Ni-Si alloy TA wire for crossbar switches, steel belts for type-head drive in keyboard printers, 52-permalloy TA wire for reed relays, solder-laminated stainless steel sheet for NTT 600/601/600P telephones, dot wires for kanji serial dot printers, leaf springs for floppy disks and printers, and paper-feed rollers for video color printers, ticket machines and inkjet/cutting plotters. The company has a long history of supplying major Japanese electronics firms, with delivery destinations including NEC, OKI, Fujitsu, Hitachi, Matsushita (Panasonic), IBM Japan, Mutoh Industries, Roland, Mimaki Engineering and Graphtec. It has also engaged in international activity, including a joint venture in China, Xi'an Xili Electronic Technology Co., Ltd., established in 2001 and transferred in 2015, and hosting Chinese trainees in the late 1980s and early 1990s. NBP is a private company. Its capital was increased to 20 million yen in 2000 and to 30 million yen in 2010. It obtained ISO 9001 certification in 2001. Its head office and main plant moved several times: to Higashi Kaijin-cho, Funabashi in 1980; to Owada Shinden, Yachiyo in 1990; and the Shirakawa plant began operation in 1982, with a new Shirakawa plant completed in 1996. The company continues to operate from Yachiyo, Chiba, and maintains a Japanese-language website at takuminowaza.com.
History
Nippon BELL Parts Co., Ltd. was founded in 1973 in Kaijin-cho, Funabashi, Chiba, with capital of 10 million yen, under president Takeo Ota. Its purpose was the development, prototyping and manufacture of materials and components for NTT-related communications, electronics and information equipment. Early production included Cu-Ni-Si alloy TA wire for wire-spring relays. In 1974 the company began manufacturing steel belts for type-head drive in NTT 100 b/s and 200 b/s keyboard printers, with deliveries to NEC, OKI and Fujitsu, and started mass production of brass square wire using Turks-head processing. It also began TA processing and mass production of 52-permalloy wire for reed relays for Oki Electric. In 1975 it used Co-based alloy for actuator and hinge springs in DISP type line printers, delivering to NEC, OKI and Hitachi, and succeeded in developing tab discs for mechanical printers. In 1976 it achieved mass production of solder-laminated stainless steel thin sheet for NTT 600, 601 and 600P telephones. In 1977 it developed linear stepping motors for printers, and in 1978 developed and prototyped stainless steel and plastic type for motor-controlled printers (60 characters/second). In 1979 the company began mass production of dot wires for NTT kanji serial dot printers (24-pin), leaf springs for serial dot printers and leaf springs for 8-inch floppy disks. It also succeeded in developing pen-feed sprayed pulleys and belts for XY plotters for OKI, NEC, Fujitsu and Mutoh Industries (patent No. 1146077). In 1980 it began mass production of leaf springs for 5.25-inch floppy disks and moved its head office plant to Higashi Kaijin-cho, Funabashi, with about 170 tsubo of land and about 300 tsubo of buildings. In 1981 Yuji Shimizu received the academic award from the Spring Technology Research Association for research on copper alloys, especially low-Sn phosphor bronze thin sheet springs. In 1982 the Shirakawa plant began operation, with wire TA equipment, wire drawing machines and Turks-head processing; Ag brazing of wires and armatures for serial dot printers began. Masao Nakazato became president and Mikio Nishihata vice president. In 1983 the company mass-produced NB105 alloy for lead frames, pitched it to a US semiconductor maker, and spun off its solder-laminated materials division into Nippon Data Material Co., Ltd. (product name SOMEC). Takashi Mutsuwaki became a director of Nippon Bell Parts. In 1984 sub-assembly of leaf springs and armatures for serial dot printers began for IBM and Matsushita Electric Works; an NEC laser welder was installed. In 1985 the "Belten No.1" wire for serial dot printers was mass-produced; Mikio Nishihata became representative director and president, and sales reached 1.4 billion yen. In 1986 mass production of sprayed pulleys and belts for XY plotters began, and Ag brazing of wires and armatures for serial dot printers began for Kyumatsu. In 1987 Nippon Data Material Co., Ltd. moved to Anegasaki, and a second plant and development laboratory were established there, with Dr. Masao Terasawa as the first laboratory director. In 1988 production of φ40, φ60 and φ65 springs and hammer springs for printers increased, with sales of 1.2 billion yen; the company distributed a book commemorating its 15th anniversary. In 1989 the first Chinese trainees arrived, and production capacity for XY plotter paper-feed rolls was expanded, serving Mutoh Industries, Roland, Mimaki Engineering and Graphtec. Contact springs with solder contacts and stainless steel thin sheet were delivered to Iwatsu Electric for NTT cordless telephones. In 1990 the head office plant was established in Yachiyo City, the Funabashi first plant was sold, and the "Wakakusa" clubhouse was completed. Mass production of paper-feed rolls for video color printers for Matsushita began. In 1991 NC lathes and a small laser welder (the fourth) were installed, and prototyping of video color printer paper-feed rolls increased. In 1992 the fourth group of Chinese trainees arrived. In 1993 the company received the Invention Award for its paper-feed roller. In 1996 the new Shirakawa plant was completed. In 2000 capital was increased to 20 million yen. In 2001 the company obtained ISO 9001 certification and established the joint venture Xi'an Xili Electronic Technology Co., Ltd. in China. In 2003 it absorbed Yakin Kako Co., Ltd. and opened a Tokyo sales office. In 2005 it established Net Rush LLC and closed the Tokyo sales office; in 2006 it expanded the head office plant and closed Net Rush LLC. In 2010 capital was increased to 30 million yen. In 2015 the transfer of the joint venture Xi'an Xili Electronic Technology Co., Ltd. was completed. The company continues to operate from Yachiyo, Chiba, developing and manufacturing precision parts and materials.
- 2001
Obtained ISO 9001 certification; established joint venture Xi'an Xili Electronic Technology Co., Ltd. in China.
- 2000
Capital increased to 20 million yen.
- 1996
New Shirakawa plant completed.
- 1993
Received the Invention Award for paper-feed roller.
- 1992
Fourth group of Chinese trainees arrived.
- 1991
Installed NC lathes and a small laser welder (fourth); increased prototyping of video color printer paper-feed rolls.
- 1990
Head office plant established in Yachiyo City; Funabashi first plant sold; "Wakakusa" clubhouse completed; began mass production of paper-feed rolls for Matsushita video color printers.
- 1989
First Chinese trainees arrived; expanded capacity for XY plotter paper-feed rolls; delivered contact springs to Iwatsu Electric for NTT cordless telephones.
- 1988
Increased production of φ40, φ60, φ65 springs and hammer springs for printers; sales of 1.2 billion yen; distributed 15th anniversary book.
- 1987
Nippon Data Material Co., Ltd. moved to Anegasaki; second plant and development laboratory established; Dr. Masao Terasawa became first laboratory director.
Products and positioning
Specialty precision-parts and materials supplier to the Japanese electronics and information-equipment industry, with deep expertise in wire materials, paper-feed mechanisms and micro-joining.
TA wire
Tough-pitch annealed specialty wire, including Cu-Ni-Si alloy and 52-permalloy, for communications and electronic equipment.
Profile wire
Shaped wire products for electronic and information equipment.
High-precision paper-feed rollers
Precision rollers for printers, plotters, ticket machines and other information equipment.
High-friction belt pulleys
Sprayed pulleys and belts for XY plotters and similar equipment.
Micro-joining processing
Micro-joining services for medical and electronic components.
Parts for food-manufacturing equipment
Components for food-manufacturing machinery.
Evaluation technologies
Testing and evaluation services for materials and components.
Sources5 sources
Cite this profile: Cite the canonical profile. /brand-wiki/nippon-bell-parts-co-ltd-japan · Editorial policy · How profiles are compiled