Patents by Inventor Takashi Matsufuji
Takashi Matsufuji 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: 7947151Abstract: A paper softening composition that is capable of providing paper with excellent flexibility while suppressing decrease in paper strength. The paper softening composition contains a specific diamide diamine compound or a salt thereof and a specific amide amine compound or a salt thereof in a mass ratio of 5/95 to 90/10.Type: GrantFiled: February 15, 2007Date of Patent: May 24, 2011Assignee: NOF CorporationInventors: Tetsuya Tamai, Kazumichi Asakura, Yasuyuki Nakamura, Takashi Matsufuji
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Publication number: 20090014139Abstract: A paper softening composition that is capable of providing paper with excellent flexibility while suppressing decrease in paper strength. The paper softening composition contains a specific diamide diamine compound or a salt thereof and a specific amide amine compound or a salt thereof in a mass ratio of 5/95 to 90/10.Type: ApplicationFiled: February 15, 2007Publication date: January 15, 2009Inventors: Tetsuya Tamai, Kazumichi Asakura, Yasuyuki Nakamura, Takashi Matsufuji
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Patent number: 5888269Abstract: A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.Type: GrantFiled: March 17, 1997Date of Patent: March 30, 1999Assignees: Toyota Jidosha Kabushiki Kaisha, Toyo Aluminium Kabushiki KaishaInventors: Yasuhiro Yamada, Hirohisa Miura, Mamoru Okamoto, Takashi Matsufuji, Taro Tatsumi, Kazuo Fujii
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Patent number: 5856552Abstract: Disclosed is a composition which comprises a phosphatized alicyclic compound represented by the formula (I), (II), (III), (VII) or (IX), shown in the specification.The composition of the present invention is useful as an antigassing agent for a water-based coating composition containing metallic, for example, aluminum powder or flake pigments for coating automobile bodies, etc., a flame retardant for various resins and a water-based ink, and the like.Type: GrantFiled: September 23, 1997Date of Patent: January 5, 1999Assignee: Daicel Chemical Industries, Ltd.Inventors: Takaaki Fujiwa, Terumasa Daito, Takashi Yamamoto, Takashi Matsufuji
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Patent number: 5824815Abstract: A composition that comprises a phosphatized alicyclic compound represented by the formulas (I), (II), (III), (VII) and (IX) as shown in the specification is described.Type: GrantFiled: September 23, 1997Date of Patent: October 20, 1998Assignee: Daicel Chemical Industries, Ltd.Inventors: Takaaki Fujiwa, Terumasa Daito, Takashi Yamamoto, Takashi Matsufuji
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Patent number: 5582655Abstract: A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.Type: GrantFiled: June 6, 1995Date of Patent: December 10, 1996Assignees: Toyota Jidosha Kabushiki Kaisha, Toyo Aluminium Kabushiki KaishaInventors: Yasuhiro Yamada, Hirohisa Miura, Mamoru Okamoto, Takashi Matsufuji, Taro Tatsumi, Kazuo Fujii
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Patent number: 5540768Abstract: An aluminum pigment which comprises aluminum flakes wherein the surfaces of the flakes are coated with a film of molybdic acid in an amount of from 0.1 to 10% by weight in terms of Mo metal based on the weight of aluminum, and a phosphoric ester resulting from an esterification reaction of a multifunctional epoxy compound with a phosphoric compound is adsorbed to said film in an amount of from 0.05 to 5% by weight in terms of P element based on the weight of aluminum. The aluminum pigment is excellent in paint stability as well as color tone, adhesion and moisture resistance of paint films.Type: GrantFiled: November 4, 1994Date of Patent: July 30, 1996Assignees: Toyo Aluminium Kabushiki Kaisha, Daicel Chemical Industries, Ltd.Inventors: Takashi Yamamoto, Takashi Matsufuji, Takaaki Fujiwa, Terumasa Daito
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Patent number: 5527941Abstract: Disclosed is a composition which comprises a phosphatized alicyclic compound represented by the formula (I), (II), (III), (VII) or (IX) shown in the specification.The composition of the present invention is useful as an antigassing agent for a water-based coating composition containing metallic, for example, aluminum powder, or flake pigments for coating automobile bodies, etc., a flame retardant for various resins, and a water-based ink, and the like.Type: GrantFiled: July 5, 1994Date of Patent: June 18, 1996Assignee: Daicel Chemical Industries, Ltd.Inventors: Takaaki Fujiwa, Terumasa Daito, Takashi Yamamoto, Takashi Matsufuji
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Patent number: 5514225Abstract: A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of the aluminum product or less while keeping the aforementioned contact. The nitriding agent includes an aluminum powder, and the ambient gas virtually includes a nitrogen gas. The resulting nitriding layer has a depth of 5 micrometers or more, and it exhibits a case hardness of from 250 to 1,200 mHv. Thus, it is possible to form the deep and hard nitriding layer on the aluminum product with ease under the conditions where it has been said to be too difficult to nitride aluminum products. The case nitrided aluminum product can appropriately make sliding parts which require high wear resistance.Type: GrantFiled: October 4, 1994Date of Patent: May 7, 1996Assignees: Toyota Jidosha Kabushiki Kaisha, Toyo Aluminum K.K.Inventors: Yasuhiro Yamada, Hirohisa Miura, Mamoru Okamoto, Takashi Matsufuji, Taro Tatsumi, Kazuo Fujii
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Patent number: 5480481Abstract: Disclosed herein is an aluminum pigment comprising aluminum flakes, each of the aluminum flake being coated with molybdic acid in an amount of 0.1 to 10% by weight in terms of Mo based on Al. If desired, at least one selected from water-insoluble metal salts of molybdic acid and vanadium pentoxide in an amount of 0.1 to 10% by weight in terms of metal based on Al may be attached on the coatings of molybdic acid.The aluminum pigment of the present invention has good color tone and good water resistance.Type: GrantFiled: August 31, 1994Date of Patent: January 2, 1996Assignee: Toyo Aluminum Kabushiki KaishaInventors: Shunichi Setoguchi, Haruzo Katoh, Takashi Matsufuji
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Patent number: 4869754Abstract: An aluminium pigment composition disclosed herein comprises aluminium flakes, phosphorus supplied from an inorganic phosphoric acid in an amount of 500 to 10,000 ppm based on the aluminium weight, an aliphatic compound having at least one functional group within a molecule in an amount of 0.3 to 5 parts by weight per 100 parts by weight of aluminium, water in an amount of 0.05 to 10 parts by weight of aluminium, a water-compatible alcohol in an amount of 5 to 100 parts by weight per 100 parts by weight of aluminium and a hydrocarbon oil in an amount of 1 to 70 parts by weight of aluminium. The aluminium pigment composition according to the invention is particularly suitable for incorporating in the water base paint.Type: GrantFiled: November 17, 1988Date of Patent: September 26, 1989Assignee: Toyo Aluminium Kabushiki KaishaInventors: Tetsufumi Kawabe, Toshiaki Bamba, Takashi Matsufuji, Hiroaki Ueshimo, Yoshiki Hashizume, Eikichi Uchimura, Masakatsu Harasda, Masahiro Aoki, Toru Kimura