Patents by Inventor Kazuo Matsuyama
Kazuo Matsuyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20010008915Abstract: The invention relates to a polyolefin-based resin composition that is in an amount of 100 wt % in total. This composition includes (a) 60-66 wt % of a crystalline propylene-ethylene block copolymer, (b) 12-20 wt % of an ethylene-propylene copolymer rubber, and (c) 18-25 wt % of an inorganic filler. The block copolymer contains a first segment of a homopolymer of propylene and a second segment of a copolymer of propylene and ethylene, and has an isotactic pentad tacticity of at least 0.96. The ratio of the weight average molecular weight of the block copolymer to the number average molecular weight thereof is not greater than 6. The copolymer rubber contains therein 50-60 wt % of ethylene, and has a Mooney viscosity of from 45 to 55 at 125° C. The inorganic filler is one selected from the group consisting of a talc, a first combination of the talc and a glass fiber, and a second combination of the talc and a whisker. The talc has an average particle diameter of not greater than 2 &mgr;m.Type: ApplicationFiled: April 25, 1997Publication date: July 19, 2001Inventors: TOMIO HIRATA, MINORU ADACHI, TAMIHIRO OHASHI, KAZUO MATSUYAMA, KAZUYUKI YAMAMOTO, KAZUSHIGE OHNISHI, SATORU ICHIKAWA, MASAHIRO TERADA, HIROSUKE KAMAE, AKIRA KAWAI
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Patent number: 6204324Abstract: A method for producing an aqueous solution of a polymer having a phosphorylcholine group in which a polymerizable composition containing a polymerizable monomer having the phosphorylcholine group represented by the formula (1) is polymerized in the presence of a non-metal polymerization initiator soluble in a water-containing medium, to obtain a crude polymer aqueous solution, and the crude polymer aqueous solution is purified with a separation membrane, and an aqueous solution of the polymer having the phosphorylcholine group obtained by the method and having not more than 2000 ppm of impurities.Type: GrantFiled: December 2, 1996Date of Patent: March 20, 2001Assignees: NOF Corporation, Japan Science and Technology CorporationInventors: Kenshiro Shuto, Kazuo Matsuyama, Nobuo Nakabayashi, Kazuhiko Ishihara
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Patent number: 6095591Abstract: A front pillar garnish adapted to cover a front pillar disposed between a front windshield and a side door in an automotive vehicle. The front pillar garnish comprises a main body section formed of plastic and generally channel-shaped. The main body section is to be fixedly connected to the front pillar and located at the side of a passenger compartment. A plurality of generally plate-shaped energy absorbing ribs are integrally formed at the inner surface of the main body section in a manner to be generally perpendicular to the longitudinal axis of the main body section. A plurality of bosses are integrally formed extending from the inner surface of the main body section. A clip supporting member is fixedly secured to the tip end sections of the bosses and fixedly supported on the edges of the energy absorbing ribs. A clip formed of a spring material is fixedly mounted on the clip supporting member and fixable to the front pillar in order to install the front pillar garnish to the vehicle body.Type: GrantFiled: October 24, 1997Date of Patent: August 1, 2000Assignees: Nissan Motor Co., Ltd., Nihon Plast Co., Ltd.Inventors: Kazuo Matsuyama, Motoru Komatsu, Satoru Ichikawa, Akira Kawai, Satoru Yoshikawa
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Patent number: 5981786Abstract: A process for producing a (meth)acrylate derivative including reacting a compound of formula (1) (wherein R.sup.1 is H or CH.sub.3 ; A is C.sub.1 -C.sub.10 alkylene; and p is 1 to 10) with a chloro-dioxaphosphorus compound of formula (2) (wherein q is 0 or 1) in the presence of a secondary amine of formula (3) (wherein R.sup.2 and R.sub.3 are each C.sub.3 -C.sub.8 alkyl, cycloalkyl, C.sub.6 -C.sub.9 aryl, arylalkyl, etc.) to produce a (meth)acrylate derivative of formula (4) and further reacting the same with a tertiary amine of formula (5) (wherein R.sup.4, R.sup.5 and R.sup.6 are each C.sub.1 -C.sub.4 alkyl etc.) to provide a (meth)acrylate derivative of formula (6).Type: GrantFiled: January 27, 1999Date of Patent: November 9, 1999Assignee: NOF CorporationInventors: Shigeru Kitano, Toshihiko Ohta, Hiroshi Suzuki, Akio Hayashi, Yoshishige Murata, Kazuo Matsuyama, Kenichiro Nakamoto
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Patent number: 5977257Abstract: A high molecular material and a medical material which is a mixed material containing a copolymer A produced by copolymerization of a monomer composition containing a monomer having a side chain represented by the formula (1) ##STR1## (R.sup.1, R.sup.2, R.sup.3 ; H or a C1-4 alkyl group) and a hydrophobic monomer, and one or more sorts of hydrophobic polymer B other than the copolymer A; wherein structure of said mixed material shows phase separation in which domains of several hundred micrometers or less in size consisting of the copolymer A are uniformly distributed in a phase consisting of said hydrophobic polymer B. A liquid high molecular composition in which the copolymer A and the hydrophobic polymer B are dissolved in a mixed solvent consisting of a halogenated hydrocarbon solvent and a lower alcohol solvent, which has turbidity of 60% or less.Type: GrantFiled: October 28, 1997Date of Patent: November 2, 1999Assignees: NOF Corporation, Japan Science and Technology CorporationInventors: Kazunori Waki, Daijiro Shiino, Kazuo Matsuyama, Nobuo Nakabayashi, Kazuhiko Ishihara
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Patent number: 5965654Abstract: A polyolefin-based plastic composition suitable for an automotive molded pillar member such as a pillar garnish. The plastic composition comprises (A) block copolymer in an amount ranging from 53 to 68 parts by weight, the block copolymer having a Melt Flow Rate (at 230.degree. C. and under 2.16 kg) ranging from 20 to 50 g/10 min. and containing crystalline polypropylene section in an amount ranging from 90 to 95% by weight, having a density of not lower than 0.908 g/cm.sup.3, and propylene-ethylene random copolymer section in an amount ranging from 5 to 10% by weight, the propylene-ethylene random copolymer section having an ethylene content ranging from 35 to 45% by weight; (B) ethylene-1-butene copolymer rubber in an amount ranging from 12 to 20 parts by weight and having a density ranging from 0.85 to 0.87 g/cm.sup.3 and a Melt Flow Rate (at 230.degree. C. and under 2.16 kg) ranging from 0.2 to 5 g/10 min.Type: GrantFiled: April 23, 1997Date of Patent: October 12, 1999Assignees: Nissan Motor Co., Ltd, Nihon Plast Co., Ltd., Japan Polychem CorporationInventors: Tomio Hirata, Kazuo Matsuyama, Kazuyuki Yamamoto, Kazushige Ohnishi, Yukihito Zanka, Takuya Kurio, Takashi Niimi, Satoru Ichikawa, Motoru Komatsu, Masahiro Terada, Hirosuke Kamae, Akira Kawai
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Patent number: 5868458Abstract: A pillar garnish for a front pillar disposed between a front windshield glass and a side window glass of an automotive vehicle. The pillar garnish comprises a main body section formed of plastic and secured to a vehicle body. The main body section is generally channel-shaped to cover the front pillar forming part of the vehicle body. The main body section has an inner surface facing the front pillar, and an outer surface facing a vehicle passenger inside a passenger compartment. A plurality of reinforcement ribs are formed at the inner surface of the main body section and integral with the main body section. Each reinforcement rib extends perpendicular to the inner surface. Additionally, a plurality of auxiliary ribs are formed at the inner surface of the main body section and integral with the main body section. Each auxiliary rib extends parallel with each reinforcement rib. Each rib is located between the reinforcement ribs which are located adjacent each other.Type: GrantFiled: April 25, 1997Date of Patent: February 9, 1999Assignees: Nissan Motor Co., Ltd., Nihon Plast Co., Ltd.Inventors: Tomio Hirata, Kazuo Matsuyama, Kazuyuki Yamamoto, Kazushige Ohnishi, Motoru Komatsu, Satoru Ichikawa, Akira Kawai, Satoru Yoshikawa
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Patent number: 5594090Abstract: A first prepolymer contains a structural unit represented by the formula ##STR1## where m denotes a positive number of from 2 to 20 with a polymerization degree of 2 to 1000. A second prepolymer contains a structural unit represented by the formula ##STR2## where X denotes a hydrogen atom or a halogen atom, m.sup.1 and m.sup.2 denote positive numbers of from 2 to 20 and n.sup.1 +n.sup.2 denote positive numbers of from 2 to 1000, with n.sup.1 and n.sup.2 being not equal to 0, the prepolymer having a polymerization degree of 2 to 1000. An optical material with a high refractive index is obtained by polymerizing and curing a polymerizable composition containing the first or second prepolymer.Type: GrantFiled: April 4, 1995Date of Patent: January 14, 1997Assignee: NOF CorporationInventors: Tsuyoshi Miyazaki, Hiromitsu Nakajima, Shuji Ichikawa, Yasumi Koinuma, Kazuo Matsuyama, Koji Kamenosono, Yoshihiro Minoshima
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Patent number: 5210164Abstract: A novel peroxy aryl carbonate which has the both properties of polymerization-initiating and regulating abilities, can be used as a radical polymerization initiator to regulate the polymerization rate, the polymerization degree and molecular weight distribution of the polymer and the like, and therefore produce superior styrene resin and methyl methacrylate syrup.Type: GrantFiled: September 27, 1989Date of Patent: May 11, 1993Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama, Isao Honma
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Patent number: 5143974Abstract: A low-profile unsaturated polyester resin composition, consisting essentially of (A) an unsaturated polyester, (B) a monomer copolymerizable with the unsaturated polyester, and (C) an A-B type block copolymer comprising an A segment which is a product using vinyl acetate and butyl acrylate as raw materials and a B segment which is a product solely of styrene or a product using styrene and a monomer copolymerizable with styrene as raw materials.Type: GrantFiled: August 13, 1990Date of Patent: September 1, 1992Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Kenji Nagai, Kyosuke Fukushi, Kazuo Matsuyama
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Patent number: 5008353Abstract: A novel peroxy aryl carbonate which has the both properties of polymerization-initiating and regulating abilities, can be used as a radical polymerization initiator to regulate the polymerization rate, the polymerization degree and molecular weight distribution of the polymer and the like, and therefore produce superior styrene resin and methyl methacrylate syrup.Type: GrantFiled: November 14, 1988Date of Patent: April 16, 1991Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama, Isao Honma
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Patent number: 5004780Abstract: A novel cyclic monoperoxyketal represented by the following general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent hydrogen atoms, or same or different alkyl groups having 1-3 carbon atoms, R.sup.4 represents an alkyl group having 1-5 carbon atoms, R.sup.5 represents an alkyl group having 1-3 carbon atoms, and R.sup.6 and R.sup.7 may be separate groups, in which R.sup.6 represents an alkyl group having 1-3 carbon atoms and R.sup.7 represents an alkyl group having 2-10 carbon atoms, a cycloalkyl group or an aryl group, or may be combined into a cylcoalkylene group having 3-12 carbon atoms, has high stability and excellent decomposition property, and is useful as a polymerization initiator of unsaturated monomers and as a curing agent of unsaturated polyester resin.Type: GrantFiled: March 8, 1989Date of Patent: April 2, 1991Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Kazuo Matsuyama, Takashi Sugiura, Takeshi Komai
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Patent number: 4929747Abstract: A novel peroxy aryl carbonate which has the both properties of polymerization-initiating and regulating abilities, can be used as a radical polymerization initiator to regulate the polymerization rate, the polymerization degree and molecular weight distribution of the polymer and the like, and therefore produce superior styrene resin and methyl methacrylate syrup.Type: GrantFiled: August 13, 1986Date of Patent: May 29, 1990Assignee: Nippon Oil & Fats Company, Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama, Isao Honma
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Patent number: 4734135Abstract: An aqueous suspension of a solid organic peroxide is produced by mixing a solid organic peroxide having a difference of at least 5.degree. C. between the melting point and the thermal decomposition temperature thereof with a protective colloid, a surface active agent, and water thereby forming an aqueous emulsion and subsequently cooling this aqueous emulsion.Type: GrantFiled: September 28, 1983Date of Patent: March 29, 1988Assignee: Nippon Oil & Fats Co., Ltd.Inventors: Nobuyuki Satomi, Kazuo Matsuyama, Takeshi Komai
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Patent number: 4533699Abstract: A sizing agent for the treatment of glass fibers contains as principal components a film-forming agent, which is a copolymer of a specific unsaturated peroxycarbonate and an unsaturated monomer containing at least 70% by weight of vinyl acetate, and a coupling agent. A method for the treatment of glass fibers, which comprises causing said sizing agent to be deposited on glass fibers and subjecting the glass fibers coated with said sizing agent to heat treatment.Type: GrantFiled: May 30, 1984Date of Patent: August 6, 1985Assignee: Nippon Oil & Fats Co., Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama, Takuya Saigo
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Patent number: 4396527Abstract: An aqueous emsulion of organic peroxide which is obtained by incorporating a water soluble alcohol of low molecular weight into a system which comprises an organic peroxide, an emulsifier and water, is good in the storage stability and it is capable of being transported at a low temperature.Type: GrantFiled: July 16, 1981Date of Patent: August 2, 1983Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Kazuo Matsuyama, Nobuyuki Satomi, Takeshi Arai, Takashi Yamamoto
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Patent number: 4137252Abstract: Dicyclododecyl peroxydicarbonate of the formula: ##STR1## is stable and can be stored at room temperature. It has a high solubility in organic solvents and good compatibility with unsaturated polyester resins.This compound is an improved polymerization initiator for free radical polymerizations of ethylenically unsaturated monomers, including copolymerization with monomers capable of copolymerizing therewith.This compound also is a catalyst for curing unsaturated polyester resin compositions.Type: GrantFiled: June 9, 1977Date of Patent: January 30, 1979Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama, Kazuhiro Mizuno
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Patent number: 4119657Abstract: Peroxycarbonates having the following formula are copolymerizable with non-conjugated ethylenically unsaturated monomers and have good storage stability, ##STR1## in which R.sub.1 represents a hydrogen atom or a lower alkyl group having one to four carbon atoms, R.sub.2 and R.sub.3 represent lower alkyl groups having one to four carbon atoms, and R.sub.4 represents an alkyl group having one to 12 carbon atoms or a cyclo alkyl group having three to 12 carbon atoms.Type: GrantFiled: May 20, 1977Date of Patent: October 10, 1978Assignee: Nihon Oil and Fats Co., Ltd.Inventors: Takeshi Komai, Kazuo Matsuyama
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Patent number: 4045463Abstract: Stable peroxyesters containing both conjugated diene and peroxidic groups in their molecule; e.g., t-butylperoxysorbate, t-hexylperoxysorbate, 1,1,3,3-tetra-methylbutylperoxysorbate, are copolymerizable with other polymerizable monomers and the said compounds are useful for polymerizing monomers as free radical initiators.Type: GrantFiled: March 29, 1976Date of Patent: August 30, 1977Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Kazuo Matsuyama, Takeshi Komai