Patents by Inventor Rikio Tsushima
Rikio Tsushima 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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Patent number: 5496897Abstract: Uniformly sized, fine particles of a polymer are produced by:(1) mixing (B) a nonionic-organic compound being liquid at room temperature, having a solubility in water at 25.degree. C. of 0.01 wt. % or larger and being compatible with (A) an oil-soluble, ethylenically unsaturated monomer, with the monomer (A) in an amount of 0.5 to 300 wt. % based on the monomer (A),(2) then adding the mixture of (A) and (B) to an aqueous dispersion of (C) particles of a seed polymer so as to make the mixture of (A) and (B) absorb onto the paricles (C) and(3) polymerizing the mixture of (A), (B) and (C) in the presence of an oil-soluble initiator for the polymerization to obtain said uniformly sized, fine particles.Type: GrantFiled: August 10, 1992Date of Patent: March 5, 1996Assignee: Kao CorporationInventors: Akira Yoshimatsu, Akihiro Kondo, Rikio Tsushima
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Patent number: 5114793Abstract: A magnetic recording medium which comprises a non-magnetic support and a magnetic layer thereon comprising a binder and powder of a ferromagnetic substance dispersed in the binder, the binder comprising a crosslinked product of a polyurethane having an average molecular weight of 900 to 50,000 and comprising at least one unit of the formula (I): ##STR1## in which R.sub.1, R.sub.2 and R.sub.4 each are an alkylene, R.sub.3 is a hydrocarbon group derived from a di-isocyanate compound and R.sub.5 is hydrogen or methyl, in one molecular thereof and having --OH, --NCO or --OOC--CR.sub.5 .dbd.CH.sub.2 at both terminals of the main chain thereof, provided that the terminals of the main chain are not --NCO when the molecular weight of the polyurethane ranges from 900 to 10,000. The polyurehtane resin can be prepared by using as a starting material a polymerizable dihydorxyl compound of the general formula (II): ##STR2## in which R.sub.1 R.sub.2 and R.sub.4 each are an alkylene, R.sub.3 is a hydrocarbon group and R.Type: GrantFiled: June 18, 1991Date of Patent: May 19, 1992Assignee: Kao CorporationInventors: Tomoyuki Okada, Naoki Kannen, Tadashi Nishimori, Rikio Tsushima
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Patent number: 4895722Abstract: A hair treatment comprising in dissolved form three essential components including at least one decomposition derivative of keratin, a cationic polymer, and at least one compound selected from organic and inorganic salts and urea having a solubility in water of over 1 g/100 g of water at 25.degree. C. The hair treatment within the scope of the invention covers various types of treatments such as hair setting lotion, hair styling lotion, cutting lotion, brushing lotion and the like.Type: GrantFiled: August 29, 1984Date of Patent: January 23, 1990Assignee: Kao Soap Co., Ltd.Inventors: Yoshiaki Abe, Rikio Tsushima, Hiroshi Watanabe
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Patent number: 4868086Abstract: A toner composition is obtained by the dispersion polymerization of a monomer in the presence of a charge-controlling agent, a colorant and a specified dispersant of a higher fatty acid salt of a long-chain alkyl or hydroxyalkyl amine, a polyoxyalkene-phenyl or alkylphenyl-ether or a polyethyleneimine. The toner composition is useful for developing an electrostatic image in an electrophotographic process and the like.Type: GrantFiled: November 1, 1988Date of Patent: September 19, 1989Assignee: Kao CorporationInventors: Shoji Ohtani, Yukiya Sato, Kazunari Takemura, Rikio Tsushima
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Patent number: 4795792Abstract: A copolymer of an olefin and maleic anhydride is produced in the form of particles by co-polymerizing an olefin having 2 to 8 carbon atoms with maleic anhydride in a solvent capable of dissolving both co-monomers, but incapable of dissolving the copolymer in the presence of a dispersant of an oil-soluble, cationic copolymer comprising (a) ethylenically unsaturated monomer units having cationic groups of a quaternary ammonium salt and (b) lipophilic, ethylenically unsaturated monomer units.Type: GrantFiled: April 28, 1988Date of Patent: January 3, 1989Assignee: Kao CorporationInventors: Shoji Ohtani, Yoshiyuki Muroi, Rikio Tsushima
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Patent number: 4789613Abstract: A developing toner composition is effectively prepared by dispersing in a polymerizable monomer a charge controller, a coloring agent and a highly dielectric material having a dielectric constant of at least 10 at room temperature and a volume resistivity of at least 1.times.10.sup.10 ohm.cm and dispersion-polymerizing the resulting dispersion in an aqueous medium in the presence of a dispersion stabilizer to obtain resin particles.Type: GrantFiled: July 7, 1987Date of Patent: December 6, 1988Assignee: Kao CorporationInventors: Shoji Ohtani, Kazunari Takemura, Yukiya Sato, Rikio Tsushima
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Patent number: 4751074Abstract: A hair rinse composition which comprises at least one cationic surface active agent and a decomposition derivative of a keratin material which have been dissolved or dispersed in a suitable solvent. The decomposition derivative is a member selected from hydrolysates of keratin material, alkali salts of decomposition products obtained by oxidation of keratin material, alkali salts of derivatives at a thiol group of decomposition products obtained by reduction of keratin material and a mixture thereof.Type: GrantFiled: January 13, 1986Date of Patent: June 14, 1988Assignee: Kao Soap Co., Ltd.Inventors: Kinjiro Matsunaga, Takeo Okumura, Sachio Naito, Rikio Tsushima
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Patent number: 4749638Abstract: An electrophotographic toner composition, improved in uniform dispersion therein of carbon black and electrophotographic properties, comprises a binder polymer, carbon black and a compound selected from the group consisting of a sulfonate compound having the formula (I), an alkaline earth metal salt of a basic alkylphenol persulfide having the formula (II), an alkyl or alkenyl succinic acid imide having the formula (III-1) or (III-2), an alkyl salicylic acid salt having the formula (IV), a compound having the formula (V) and a product obtained by treating the compound (V) with sulfur, in which R, R', R1 and R2 are a substituent and M is an alkaline earth metal.Type: GrantFiled: May 2, 1986Date of Patent: June 7, 1988Assignee: KAO CorporationInventors: Rikio Tsushima, Yukihiro Fukuyama, Kazunari Takemura, Yutaka Yasuda
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Patent number: 4743441Abstract: A film-forming cosmetic composition useful as a facial pack, nail enamel, eye liner etc., which comprises a copolymer of vinyl alcohol and alkyl vinyl ether, being referred to simply as PVA/AVE, consisting of 98 to 80 mole % of vinyl alcohol monomer units and 2 to 20 mole % of linear or branched alkyl vinyl monomer units having from 1 to 6 carbon atoms. The molar ratio of the vinyl alcohol monomer units to the alkyl vinyl ether monomer units is in the range of from 95/5 to 85/15. The PVA/AVE according to the invention has no acetic groups with ester bonds in a molecule. Instead, there are alkyl or alkenyl groups having ether bonds which serve for steric hindrance for preventing gelation of an aqueous solution of such copolymer. From this reason, the PVA/AVE does not undergo any hydrolysis as time passes and is thus excellent in storage stability.Type: GrantFiled: September 15, 1986Date of Patent: May 10, 1988Assignee: Kao CorporationInventors: Yoshinori Takema, Rikio Tsushima, Yutaka Yasuda, Yoshinao Kono
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Patent number: 4650595Abstract: A metal working water-soluble lubricant composition comprising a water-soluble polymer compound whose counter anion is acidic phosphorus-containing compound or boric acid is disclosed.The water-soluble polymer compound is selected from the group consisting of cationic or amphoteric addition polymers, ring-opened polymers, polycondensation products and salts or quaternary ammonium salts of natural polymer derivatives having at least one basic or cationic nitrogen atom in one molecule thereof with a molecular weight of 1,000 to 10,000,000.The composition has a load resistance equal to or higher than known liquid lubricants which contain mineral oils, beef tallow etc., and shows an excellent lubricating performance when applied to a metal working surface.Type: GrantFiled: November 1, 1983Date of Patent: March 17, 1987Assignees: Kao Corporation, Nippon Kokan Kabushiki KaishaInventors: Hiroyuki Nagamori, Takashi Mukai, Rikio Tsushima, Hiroshi Kuwamoto, Shuichi Iwado, Takeru Sharyo
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Patent number: 4639491Abstract: A dispersion for the water-in-oil suspension polymerization is stabilized by a stabilizer comprising a polymer having 70 to 99 mole percent of a lipophilic, ethylenically unsaturated monomer units and 1 to 30 mole percent of ethylenically unsaturated monomer units having a cationic group.Type: GrantFiled: December 12, 1985Date of Patent: January 27, 1987Assignee: Kao CorporationInventors: Akihiro Kondo, Rikio Tsushima, Yuzo Sumida
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Patent number: 4534892Abstract: A liquid detergent composition containing an anionic surface active agent and a water-insoluble fine powder, characterized by containing therein a cross linking type amphoteric polymer and an inorganic salt.Detergents according to the invention are widely applicable to various purposes such as for shampoo, liquid cleanser, etc.Type: GrantFiled: July 20, 1983Date of Patent: August 13, 1985Assignee: Kao CorporationInventors: Toshio Suzuki, Hiroshi Watanabe, Rikio Tsushima
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Patent number: 4495173Abstract: A pre-shampoo type hair treatment composition is described which comprises at least one decomposition derivative of keratin material selected from hydrolysates of keratin material, alkali salts of decomposition products obtained by oxidation of keratin material and alkali salts of derivatives at the thiol group of decomposition products obtained by reduction of keratin material, the at least one decomposition derivative having been dissolved or dispersed in suitable solvent.Type: GrantFiled: November 6, 1981Date of Patent: January 22, 1985Assignee: Kao Soap Co., Ltd.Inventors: Kinjiro Matsunaga, Takeo Okumura, Rikio Tsushima
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Patent number: 4465664Abstract: A hair setting composition is described which comprises at least one of decomposition products obtained by oxidation of keratin materials and derivatives at a thiol group of decomposition products obtained by reduction of keratin materials, and at least one of alkanolamines and basic amino acids. The member is dissolved in a polar solvent in an amount of 0.01 to 10 wt. % of the composition. The base is contained in a weight ratio to the member of 0.02 to 0.7:1.Type: GrantFiled: October 29, 1981Date of Patent: August 14, 1984Assignee: Kao CorporationInventors: Kinjiro Matsunaga, Takeo Okumura, Sachio Naito, Rikio Tsushima
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Patent number: 4460566Abstract: A hair rinse composition is described which comprises a defined amount of at least one decomposition derivative of keratin material such as animal hair, human hair, nail, feather, hoof and the like. The derivatives are, for example, salts of decomposition products obtained by oxidation of keratin material or salts of derivatives at thiol groups of decomposition products obtained by reduction of keratin material. Surface active agents other than cationic surface active agents may be further contained.Type: GrantFiled: January 20, 1982Date of Patent: July 17, 1984Assignee: Kao Soap Co., Ltd.Inventors: Yoshiaki Abe, Rikio Tsushima
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Patent number: 4439417Abstract: A shampoo composition is provided which is of the type which comprises a shampoo base containing at least one anionic surface active agent and a decomposition derivative of keratin material. The decomposition derivative is one or more of (1) decomposition products obtained by oxidation of keratin materials and derivatives at a thiol group of decomposition products obtained by reduction of keratin material.Type: GrantFiled: October 29, 1981Date of Patent: March 27, 1984Assignee: Kao Soap Co., Ltd.Inventors: Kinjiro Matsunaga, Takeo Okumura, Sachio Naito, Rikio Tsushima
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Patent number: 4436722Abstract: A hair rinse composition which comprises at least one cationic surface active agent and a decomposition derivative of a keratin material which have been dissolved or dispersed in a suitable solvent. The decomposition derivative is a member selected from hydrolysates of keratin material, alkali salts of decomposition products obtained by oxidation of keratin material, alkali salts of derivatives at a thiol group of decomposition products obtained by reduction of keratin material and a mixture thereof.Type: GrantFiled: October 29, 1981Date of Patent: March 13, 1984Assignee: Kao Soap Co., Ltd.Inventors: Kinjiro Matsunaga, Takeo Okumura, Sachio Naito, Rikio Tsushima
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Patent number: 4423032Abstract: Hair treatments comprising defined amounts of two ingredients, one of which being at least one decomposition derivative of keratin material such as hydrolysates of keratin material alkali salts of decomposition products obtained by oxidation of keratin material and alkali salts of derivatives at the thiol group of decomposition products obtained by reduction of keratin material. The other is at least one silicone derivative of the specific type.Type: GrantFiled: January 15, 1982Date of Patent: December 27, 1983Assignee: Kao Soap Co., Ltd.Inventors: Yoshiaki Abe, Rikio Tsushima
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Patent number: 4369037Abstract: Cationic keratin derivatives which are obtained by reacting a part or whole of functional groups of keratin with a cationizing agent which contains in the molecule thereof a specific type of a group or groups and a quaternary nitrogen atom. The process for preparing such derivatives and a variety of cosmetics containing the same are also described.Type: GrantFiled: November 5, 1981Date of Patent: January 18, 1983Assignee: Kao Soap Co., Ltd.Inventors: Kinjiro Matsunaga, Takeo Okumura, Rikio Tsushima