Motomi Nogiwa, Sachio Akai, Hiroshi Furuhashi, Kenji Tanaka, Toshimasa Takakusaki, Yoichi Kawai, Masaru Abe, Katsumi Sekiguchi: Polyolefin composition and the same used for vehicle exterior members. Nippon Petrochemicals Company, Scully Scott Murphy & Presser, May 31, 1988: US04748206 (65 worldwide citation)

A polyolefin composition and the same especially used for producing vehicle exterior members which is excellent in softness, impact resistance, moldability, appearance, restorable property and so forth. The composition comprises 20 to 70% by weight of a crystalline propylene polymer (a); 10 to 50% b ...


Yoichi Kawai, Katsuyoshi Sasagawa, Masami Maki, Hozumi Ueda, Masayoshi Miyamoto: Polypropylene composition containing a 1.3,2.4-di(alkylbenzylidene) sorbitol. Mitsui Toatsu Chemicals, Fisher Christen & Sabol, February 2, 1982: US04314039 (39 worldwide citation)

A composition having improved transparency and being substantially free from a bleeding phenomenon comprising 100 parts by weight of polypropylene and 0.005 to 8 parts by weight of a 1.3,2.4-di(alkylbenzylidene) sorbitol with each alkyl group having 2 to 18 carbon atoms.

Yoichi Kawai, Yoshihisa Gotoh, Sachio Yokote, Masami Maki, Katsumi Sekiguchi: Electrically-conductive resin composition. Mitsui Toatsu Chemicals, McGlew and Tuttle, April 9, 1985: US04510079 (34 worldwide citation)

An electrically-conductive polyolefin resin composition having excellent resin flow properties which comprises (a) a polyolefin resin, (b) sulfur, (c) a plate adhesion promoter, (d) an electrically-conductive carbon black, and (e) a flow improver.

Yoichi Kawai, Masami Maki, Masaru Abe, Sachio Yokote, Katsumi Sekiguchi: Polypropylene-base resin composition containing an inorganic filler and 0.01 to 0.6 wt. % of carbon black. Mitsui Toatsu Chemicals Incorporated, Fisher Christen & Sabol, March 29, 1988: US04734450 (31 worldwide citation)

A polypropylene-base resin composition comprising a polypropylene-base resin and carbon black in an amount of 0.01-0.6 wt. % based on the polypropylene-base resin and being suitable for use in the production of molded articles having excellent paintability.

Yoichi Kawai, Yoshiro Nakamura, Yoshihisa Gotoh, Masami Maki, Sachio Yokote, Katsumi Sekiguchi: Electroconductive resin composition. Mitsui Toatsu Chemicals, Fisher Christen & Sabol, January 10, 1984: US04425262 (24 worldwide citation)

An electroconductive polyolefin composition comprising (a) 100 parts by weight of a polyolefin resin, (b) 10 to 60 parts by weight of carbon black, (c) 0.1 to 6 parts by weight of sulfur and (d) 0.1 to 5 parts by weight of trithiolcyanuric acid, and optionally containing 5 to 60 parts by weight of a ...

Yoichi Kawai, Masaru Abe, Akio Yoshihara, Shigeru Hayashi, Katsumi Sekiguchi: Polypropylene-base resin composition. Mitsui Toatsu Chemicals Incorporated, Fisher Christen & Sabol, November 10, 1987: US04705818 (21 worldwide citation)

Disclosed herein is a polypropylene-base resin composition obtained by heating at a temperature of 170.degree. C.-280.degree. C. a mixture containing a crystalline ethylene-propylene block copolymer having a specific composition, an ethylene-propylene copolymer rubber having a specific composition a ...

Masaru Abe, Yoichi Kawai, Masami Maki, Katuo Wada: Polypropylene resin compositions. Mitsui Toatsu Chemicals, Burns Doane Swecker & Mathis, June 11, 1991: US05023286 (20 worldwide citation)

The present invention relates to polypropylene resin compositions that exhibit an improved smell over prior art polypropylene resin compositions and comprises a polypropylene resin containing an inorganic filler, at least one phenolic antioxidant, at least one phosphorus antioxidant, and fine powder ...


Yoichi Kawai: Motor using permanent magnet. Okuma Corporation, Oliff & Berridge, November 1, 2005: US06960858 (16 worldwide citation)

A motor which uses a permanent magnet is provided in which output thrust is improved by increasing a magnetic saturation limit and preventing reduction in magnetic flux and generation of heat is reduced by inhibiting generation of an eddy current in a magnetic pole. An N magnetic pole is formed such ...