Patents Assigned to Kanegafuchi Chemical Industry Co. Ltd.
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Patent number: 5179212Abstract: 3-Pyrrolidinol or its salt is economically produced by cyclizing an aminobutanol derivative of the formula: ##STR1## wherein R is an alkyl or a substituted or unsubstituted phenyl group, or its salt.Type: GrantFiled: November 30, 1990Date of Patent: January 12, 1993Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Satomi Takahashi, Shigeo Hayashi, Naoaki Taoka, Noboru Ueyama
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Patent number: 5128736Abstract: In a light sensitive semiconductor unit having a plurality of light sensitive semiconductor cells connected in series, the light receiving area or size of the light sensitive semiconductor cells is increased as the distance from the center of the unit increases so that every light sensitive semiconductor cell can generate generally equal short circuit current even if the light intensity is decreased as the distance between the light sensitive semiconductor cell and light source increases, whereby a high operating voltage can be obtained.Type: GrantFiled: January 30, 1991Date of Patent: July 7, 1992Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Eiichi Yoshida, Tomoyoshi Zenki, Satoru Murakami, Minori Yamaguchi, Takehisa Nakayama, Yoshihisa Tawada
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Patent number: 5126815Abstract: A semiconductor light beam position sensor element comprises a semiconductor layer of successively formed p-, i- and n-type semiconductor layers and an electrically conductive layer on either side of the semiconductive layer. At least one of the conductive layers is made of a transparent material, and at least the other conductive layer and the semiconductor layer are provided with a plurality of common apertures extending in the thickness direction. At least one of the conductor layers is provided with one or two pairs of electrodes of opposite polarity and positioned in its marginal regions. The sensor element is light transparent. A feedback circuit is provided to insure that the incident light is constant.Type: GrantFiled: November 5, 1990Date of Patent: June 30, 1992Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Satoru Murakami, Minori Yamaguchi, Akimine Hayashi, Masataka Konda, Yoshihisa Tawada
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Patent number: 5115123Abstract: A photosensor comprises a first electrode layer, a light-transmitting second electrode layer, and a laminate structure disposed between the two electrode layers and comprising a first photoconductive layer, a blocking layer and a second photoconductive layer (4) for charge injection as a result of modification of the electrical properties of the first photoconductive layer and of the blocking layer, the main component of the first photoconductive layer being silicon, the blocking layer being made of a substance having a broader band gap as compared with hydrogenated amorphous silicon and composed mainly of silicon and carbon or mainly of silicon and nitrogen or mainly of silicon and oxygen, and the main component of the second photoconductive layer being silicon and the silicon of the second photoconductive layer being doped with an element(s) of the group III or V of the period table.Type: GrantFiled: August 1, 1990Date of Patent: May 19, 1992Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Katsuhiko Hayashi, Minori Yamaguchi, Takehisa Nakayama
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Patent number: 5081224Abstract: This invention relates to processes for producing an olefin-terminated polyester. In one of the processes which comprises reacting an olefin-terminated diester compound with a lactone in the presence of a polymerization catalyst with transesterification ability, the lactone is in a limited amount added to the reaction system. In another process which comprises reacting an olefin-terminated diester compound, a lactone compound, a cyclic acid anhydride and an epoxy compound in the presence of a polymerization catalyst with transesterification ability, the lactone, cyclic acid anhydride and epoxy compound are each in a limited amount added to the reaction system. In accordance with this invention, olefin-terminated polyesters having high terminal modification rates can be synthesized.Type: GrantFiled: October 12, 1990Date of Patent: January 14, 1992Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Hiroshi Ando, Kazumasa Hashimoto, Jun Hattori, Kazuya Yonezawa
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Patent number: 5079382Abstract: A 3,4-epoxybutyrate of the formula: ##STR1## wherein R.sup.1 is an alkyl or aralkyl group is efficiently prepared by a process comprising steps of:(a) reacting 3,4-dihydroxybutyronitrile of the formula: ##STR2## with a sulfonyl chloride of the formula: R.sup.2 --SO.sub.2 --Cl wherein R.sup.2 is an alkyl group or a phenyl group which may be substituted in the presence of a base to obtain a compound of the formula: ##STR3## (b) reacting the compound prepared in the step (a) with an alcohol of the formula: R.sup.1 --OH in the presence of an acid to obtain a compound of the formula: ##STR4## and (c) reacting the compound prepared in the step (b) with a base to obtain the 3,4-epoxybutyrate.Type: GrantFiled: November 23, 1990Date of Patent: January 7, 1992Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Naoaki Taoka, Kenji Inoue, Shigeo Hayashi, Noboru Ueyama, Satomi Takahashi
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Patent number: 5066861Abstract: In an X ray detecting device comprising XL converting unit for converting the X rays into visible light corresponding to the intensity of the X rays and a LE converting unit for converting the visible light into an electrical signal corresponding to the intensity of the visible light, the base layer of the LE converting unit is formed of a material such that the base layer does not substantially absorb the X rays so that the image of the LE converting unit does not appear on the picture of the object.Type: GrantFiled: January 19, 1989Date of Patent: November 19, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Takehisa Nakayama, Akimine Hayashi, Masataka Kondo, Satoru Murakami, Minori Yamaguchi, Yoshihisa Tawada, Masahiko Hosomi
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Patent number: 5061687Abstract: A laminated film comprising a thin film of single crystal YBa.sub.2 Cu.sub.3 O.sub.7-x having the (001) plane in the direction parallel with the film surface and a continuous insulating ultrathin layer of MgO which is formed on said superconductor film and has a thickness of not larger than 10.ANG. and the (001) plane in a direction parallel with the film surface is provided.Type: GrantFiled: November 29, 1989Date of Patent: October 29, 1991Assignees: Ube Industries, Ltd., Kanegafuchi Chemical Industry Co., Ltd., Nippon Steel Corporation, TDK Corporation, Tosoh Corporation, Toyo Boseki Kabushiki Kaisha, Nippon Mining Co., Ltd., NEC Corporation, Matsushita Electric Industrial Co., Ltd., Seisan Kaihatsu Kagaku KenkyushoInventors: Toshio Takada, Takahito Terashima, Kenji Iijima, Kazunuki Yamamoto, Kazuto Hirata
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Patent number: 5051463Abstract: A curable resin composition comprising:(A) 100 parts by weight of a rubbery organic polymer having at least one silicon-containing group to the silicon atom of which a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond in a molecule.(B) 10 to 500 parts by weight of a vinyl chloride base resin, and(C) 1 to 150 parts by weight of a polymeric plasticizer, which has improved storage stability and is easily cured in the presence of water.Type: GrantFiled: October 4, 1989Date of Patent: September 24, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Sadao Yukimoto, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 5049429Abstract: A fur-like pile fabric which comprises guard hair-like fibers and down hair-like fibers wherein a plurality of the fibers including the guard hair-like fibers constitute a unit and at least the guard hair-like fibers in the unit are adhered together in a brush form, which has an appearance and feeling similar to natural furs.Type: GrantFiled: August 31, 1989Date of Patent: September 17, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Yoshinori Shibukawa, Yuzuru Yajima
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Patent number: 5039852Abstract: In the semiconductor image sensor according to the invention in which the photoconductivity of that region of the active layer producing carriers upon exposure to light which is on the light-transmitting electrode side is lower than that of the remaining region, crosstalk can be inhibited without mechanically dividing the semiconductor layer and without causing any significant decrease in sensor sensitivity.Type: GrantFiled: December 14, 1989Date of Patent: August 13, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Masataka Kondo, Minori Yamaguchi, Yoshihisa Tawada
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Patent number: 5030691Abstract: A curable polymer composition which comprises:(A) a copolymer comprising a backbone which comprises (1) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having 1 to 8 carbon atoms in the alkyl group and alkyl methacrylates having 1 to 8 carbon atoms in the alkyl group and (2) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having at least 10 carbon atoms in the alkyl group and alkyl methacrylate having at least 10 carbon atoms in the alkyl groups and (B) an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which at least one hydroxyl group or hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond, which composition has improved transparency and storage stability and can provide a cured material having good weather resistance.Type: GrantFiled: April 26, 1989Date of Patent: July 9, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Shintaro Kohmitsu, Hiroshi Wakabayashi, Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 5025297Abstract: A transparent semiconductor light beam position sensor element comprises a semiconductor layer consisting of p-, i- and n-type semiconductor layers successively bonded in junction and an electrically conductive layer disposed on either side of the semiconductive layer, at least one of the conductive layers being material transparent material, at least the other conductive layer and the semiconductor layer being provided with a multiplicity of common apertures running in the thickness direction and at least one conductive layer being provided with one pair or two pairs of electrodes of opposite polarities as disposed in its marginal regions.Type: GrantFiled: March 7, 1989Date of Patent: June 18, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Satoru Murakami, Minori Yamaguchi, Akimine Hayashi, Masataka Kondo, Yoshihisa Tawada
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Patent number: 5003083Abstract: A novel process for effectively preparing an optically active cyanohydrin comprising asymmetrically cyanating an aldehyde by reacting the aldehyde with a cyanating agent in the presence of a titanate of an optically active tartaric acid derivative.Type: GrantFiled: December 10, 1987Date of Patent: March 26, 1991Assignee: Kanegafuchi Chemical Industry, Co., Ltd.Inventors: Kenji Inoue, Mitsunori Matsumoto, Satomi Takahashi, Takehisa Ohashi, Kiyoshi Watanabe
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Patent number: 5001018Abstract: An Fe-Co base magnetic material comprising periodically laminated structure which consists of an Fe layer which has the bcc (110) plane in the lamination plane, an Fe-Co alloy layer which has the bcc (110) plane in the lamination plane and is laminated on said Fe layer and a Co layer which has the hcp (101) plane in the lamination plane and is laminated on said Fe-Co alloy layer, which laminated structure has controlled magnetostriction.Type: GrantFiled: September 29, 1989Date of Patent: March 19, 1991Assignees: Kanegafuchi Chemical Industry Co., Ltd., TDK Corporation, Nippon Mining Co., Ltd., NEC Corporation, Seisan Kaihatsu Kagaku KenkyushoInventors: Toshio Takada, Tetsuo Okuyama, Kenichi Yoden, Teruya Shinjo
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Patent number: 4996341Abstract: A condensed bicyclic disilanylene-acetylene compound having the following formula: ##STR1## wherein R and R' are independently a univalent hydrocarbon group having 1 to 20 carbon atoms. The compound has a high degree of .sigma.-.pi. electron delocalization.Type: GrantFiled: July 5, 1990Date of Patent: February 26, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Takahisa Iwahara, Robert C. West
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Patent number: 4983759Abstract: A compound of a 3,5,6-trihydroxyhexanoic acid derivative of the formula: ##STR1## wherein P.sup.1 and P.sup.2 are independently hydrogen atoms or hydroxy-protecting groups, or together form a ring, and R is an alkyl group is effectively prepared by a process comprising steps of:reacting a butyronitrile derivative of the formula: ##STR2## wherein P.sup.1 and P.sup.2 are the same as defined above with an .alpha.-haloacetate of the formula:X--CH.sub.2 --COOR (III)wherein X is a halogen atom, and R is the same as defined above in the presence of a metallic catalyst selected from the group consisting zinc and zinc-copper to form a keto acid derivative of the formula: ##STR3## wherein P.sup.1, P.sup.2 and R are the same as defined above, and then reducing the obtained keto-acid derivative of the formula (IV).Type: GrantFiled: December 20, 1989Date of Patent: January 8, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Kenji Inoue, Satomi Takahashi, Keiichi Yonetsu, Noboru Ueyama
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Patent number: 4983700Abstract: A curable polymer composition comprising:(A) 100 parts by weight of an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which a hydroxy group and/or a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond,(B) 0.1 to 20 parts by weight of at least one compound selected from the group consisting of a compound having one silanol group in the molecule and a compound which, when reacted with moisture, generates a compound having one silanol group in the molecule,(C) 0.1 to 20 parts by weight of a compound having a silicon-containing group to the silicon atom of which two hydrolyzable groups are bonded and an amino group, and(D) 0.01 to 5 parts by weight of a compound having a silicon-containing group to the silicon atom of which three hydrolyzable groups are bonded and an amino group, which composition provides a cured material having low modulus, group bond strength and improved weather resistance of bond strength.Type: GrantFiled: June 9, 1989Date of Patent: January 8, 1991Assignee: Kanegafuchi Chemical Industry, Co. Ltd.Inventors: Sadao Yukimoto, Toshifumi Hirose, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 4981728Abstract: A cured material of a curable composition comprising (1) an organic elastomeric polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage in a molecule, (2) an epoxy resin, (3) a curing agent for the epoxy resin and (4) a curing catalyst for the organic elastomeric polymer is firmly adhered to a substrate when a vinyl type polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage is coated on a substrate before application of the curable composition.Type: GrantFiled: February 1, 1990Date of Patent: January 1, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Michihide Homma, Atsuko Yoshihara, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 4977228Abstract: A curable polymer composition comprising(A) an alkyl (meth)acrylate base polymer having a silicon-containing reactive group,(B) an oxyalkylene base polymer having a silicon-containing reactive group,(C) a silicon-containing compound having three or four hydrolyzable groups bonded to the silicon atom,(D) a silicon-containing compound having two hydrolyzable groups bonded to the silicon atom and(E) a curing acceleratorwherein the compounds (C), (D) and (E) are contained in amounts of 0.01 to 30 parts by weight, 0.1 to 30 parts by weight and 0.01 to 10 parts by weight per 100 parts by weight of the total amount of the polymers (A) and (B), which composition has improved storage stability while a cured material therefrom has good mechanical properties, particularly elongation.Type: GrantFiled: March 17, 1989Date of Patent: December 11, 1990Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Hiroshi Wakabayashi, Hisami Iwakiri, Kazuhiko Tamai, Katsuhiko Isayama