Patents by Inventor Koji Takeuchi
Koji Takeuchi 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: 7034039Abstract: The present invention provides a compound of the formula: wherein ring A is an optionally substituted 5 to 10-membered aromatic ring; R1 and R2 are the same or different and each is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group; X is a bond and the like; and L is a divalent hydrocarbon group, and a salt thereof, except 3-(aminomethyl)-2,6,7-trimethyl-4-phenyl-1(2H)-isoquinolinone, 3-(aminomethyl)-2-methyl-4-phenyl-1(2H)-isoquinolinone, 3-(aminomethyl)-6-chloro-2-methyl-4-phenyl-1(2H)-isoquinolinone and 3-(aminomethyl)-2-isopropyl-4-phenyl-1(2H)-isoquinolinone. The compound shows a superior peptidase-inhibitory activity and is useful as an agent for the prophylaxis or treatment of diabetes and the like.Type: GrantFiled: February 1, 2002Date of Patent: April 25, 2006Assignee: Takeda Pharmaceutical Company LimitedInventors: Satoru Oi, Koji Ikedou, Koji Takeuchi, Masaki Ogino, Yoshihiro Banno, Hiroyuki Tawada, Taihei Yamane
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Patent number: 6731001Abstract: Several electronic parts are mounted on several ceramic substrates in a semiconductor device, and are wire bonded to the respective ceramic substrates through bonding wires. The electronic parts and the bonding wires are covered with an enclosing member on every ceramic substrate, and an inside of the enclosing member is filled with silicone gel for sealing. The ceramic substrates are bonded to a radiation fin together, and are mounted on a motherboard perpendicularly to the motherboard.Type: GrantFiled: August 1, 2001Date of Patent: May 4, 2004Assignee: Denso CorporationInventors: Kan Kinouchi, Mitsuhiro Saitou, Takashi Nagasaka, Yuji Ootani, Hiroyuki Yamakawa, Koji Takeuchi, Hirokazu Imai, Yukihiro Maeda, Atsushi Kanamori
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Publication number: 20040082607Abstract: The present invention provides a compound of the formula: wherein ring A is an optionally substituted 5 to 10-membered aromatic ring; R1 and R2 are the same or different and each is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group; X is a bond and the like; and L is a divalent hydrocarbon group, and a salt thereof, except 3-(aminomethyl)-2,6,7-trimethyl-4-phenyl-1(2H)-isoquinolinone, 3-(aminomethyl)-2-methyl-4-phenyl-1(2H)-isoquinolinone, 3-(aminomethyl)-6-chloro-2-methyl-4-phenyl-1(2H)-isoquinolinone and 3-(aminomethyl)-2-isopropyl-4-phenyl-1(2H)-isoquinolinone. The compound shows a superior peptidase-inhibitory activity and is useful as an agent for the prophylaxis or treatment of diabetes and the like.Type: ApplicationFiled: August 1, 2003Publication date: April 29, 2004Inventors: Satoru Oi, Koji Ikedou, Koji Takeuchi, Masaki Ogino, Yoshihiro Banno, Hiroyuki Tawada, Taihei Yamane
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Patent number: 6678574Abstract: A method for producing suspension parts via preforming the workpiece by roll forming. The sectional area and length of the workpiece are calculated. In the former step, more than one orthogonal cross-section is acquired from the suspension part of aluminum alloy, and the sectional area is converted into the area of a circle. An imaginary area is calculated by adding to the converted area an adequate amount of flash. In the latter step, a circular truncated cone is defined from two adjacent imaginary circles and the length of the imaginary center line between the two adjacent imaginary circles. A solid of revolution is defined by connecting these circular truncated cones, and the volume of the suspension part of aluminum alloy is substituted by the volume of the solid of revolution. The value obtained by dividing the sectional area of the workpiece by the volume is regarded as the-length of the workpiece.Type: GrantFiled: October 10, 2001Date of Patent: January 13, 2004Assignee: Kobe Steel, Ltd.Inventors: Takumi Fujii, Koji Takeuchi, Hiroyuki Tsutsumi, Yoshiya Inagaki, Atumi Fukuda
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Publication number: 20020062163Abstract: A method for determining the dimensions of the workpiece that can be roll-formed for preforming. A method for producing suspension parts via preforming the workpiece by roll forming.Type: ApplicationFiled: October 10, 2001Publication date: May 23, 2002Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takumi Fujii, Koji Takeuchi, Hiroyuki Tsutsumi, Yoshiya Inagaki, Atumi Fukuda
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Publication number: 20020020910Abstract: Several electronic parts are mounted on several ceramic substrates in a semiconductor device, and are wire bonded to the respective ceramic substrates through bonding wires. The electronic parts and the bonding wires are covered with an enclosing member on every ceramic substrate, and an inside of the enclosing member is filled with silicone gel for sealing. The ceramic substrates are bonded to a radiation fin together, and are mounted on a motherboard perpendicularly to the motherboard.Type: ApplicationFiled: August 1, 2001Publication date: February 21, 2002Inventors: Kan Kinouchi, Mitsuhiro Saitou, Takashi Nagasaka, Yuji Ootani, Hiroyuki Yamakawa, Koji Takeuchi, Hirokazu Imai, Yukihiro Maeda, Atsushi Kanamori
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Patent number: 6213474Abstract: According to an aspect of the present invention, a piston ring for use in internal combustion engines is provided that is made of matensite-based stainless steel material containing C of not less than 0.4 and not more than 0.8 weight percent, Si of not less than 0.16 and not more than 0.4 weight percent, Mn of not less than 0.1 and not more than 0.4 weight percent, and Cr of not less than 2.0 and not more than 11.0 weight percent, where the steel material of the piston ring has mainly chromium carbide precipitated in the base texture thereof. The steel material of the first compression ring then has a nitriding layer formed thereon. According to another aspect of the present invention, a combination of compression rings, including a first compression ring 1 and a second compression ring 2, for use in internal combustion engines, is provided. The first compression ring 1 is made of martensite-based stainless steel material containing C of not less than 0.16 and not more than 1.Type: GrantFiled: March 17, 1999Date of Patent: April 10, 2001Assignee: Nippon Piston Ring Co., Ltd.Inventors: Shuji Sameshima, Koji Takeuchi
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Patent number: 5891831Abstract: Disclosed are a viscosity index improver which comprises a copolymer (A) consisting essentially of an alkyl methacrylate (a1), and one or more monomers (a2) selected from the group of conjugated dienes, acetylene, substituted acetylene, alkyl vinyl ethers and alkyl allyl ethers; an engine lubricant composition comprising said viscosity index improver and base oil; and a concentrate comprising an increased amount of said viscosity index improver and base oil. The viscosity index improver gives reduced amounts of coked products, while improving the fuel-related performance characteristics of cars that use the engine lubricant composition comprising the improver.Type: GrantFiled: February 19, 1997Date of Patent: April 6, 1999Assignee: Sanyo Chemical Industries, Ltd.Inventors: Hidehiko Matsuya, Koji Takeuchi
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Patent number: 5813903Abstract: A sander (1) has a motor (3) with a motor shaft (4) mounted in a bearing box (11) via an eccentric ball bearing (10). Coupled to the bearing box (11) is a pad (12) having a bulged square shape in a horizontal cross section. The sander (1) further includes a skirt (6) with an opening (6a) on which a synthetic (polyurethane rubber) brake ring (17) is mounted. The brake ring (17) comprises an outer peripheral portion (18) and a plurality of contact portions (19) disposed at regular intervals around the outer peripheral portion (18). Each contact portion (19) is bulged toward the center of the brake ring (17) with both ends connected to the outer peripheral portion (18). Also, the contact portions (19) are elastic so as to deform in the radial direction. The contact portions (19) together form a through-hole (21) which is slightly smaller than the bearing box (11) for receiving the bearing box.Type: GrantFiled: March 7, 1997Date of Patent: September 29, 1998Inventors: Kunio Amano, Katsuhiko Sasaki, Tetsuhisa Kaneko, Masatoshi Kobayashi, Koji Takeuchi
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Patent number: 5439977Abstract: An acid anhydride-containing one package epoxy resin composition consisting indispensably of (1) an epoxy resin having two or more epoxy groups in one molecule, (2) an acid anhydride, (3) at least one of (a) a liquid latent curing accelerator, (b) a latent curing accelerator soluble in an epoxy resin having two or more epoxy groups in one molecule and (c) a latent curing accelerator soluble in an acid anhydride, and (4) a dispersible latent curing accelerator, wherein the ratio of (1) to (2) is from 0.8 to 1.2, defined as the number of acid anhydride equivalents/the number of epoxy equivalents, and the amounts of (3) and (4) each are from 0.1 to 10 parts by weight to 100 parts by weight of the epoxy resin. The composition has excellent infiltrability, storage stability and reactivity.Type: GrantFiled: April 15, 1994Date of Patent: August 8, 1995Assignee: Ajinomoto Co., Inc.Inventors: Tadahiko Yokota, Hiroyuki Sakata, Kiyomiki Hirai, Koji Takeuchi
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Patent number: 5430112Abstract: Epoxy resin compositions which contain (1) an epoxy resin which has two or more epoxy groups in its molecule, (2) a polythiol compound which has two or more thiol groups in its molecule and (3) an accelerator which is (i) a solid dispersion-type amine adduct latent curing accelerator or (ii) the product of a reaction between a compound which contains one or more isocyanate groups in its molecule and a compound which has at least one primary and/or secondary amino group in its molecule, exhibit excellent curability at relatively low heating temperatures as well as a long working life.Type: GrantFiled: October 21, 1993Date of Patent: July 4, 1995Assignee: Ajinomoto Co., Inc.Inventors: Hiroyuki Sakata, Tadahiko Yokota, Kenichi Mori, Kiyomiki Hirai, Koji Takeuchi, Toshihiko Hatajima
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Patent number: 5317080Abstract: Disclosed herein is a polyether acrylamide derivative of the following general formula (I): ##STR1## as well as an active energy ray curable resin composition comprising at least one polyether acrylamide derivative of the above general formula (I) and a cured product produced by curing such an active energy curable resin composition with active energy rays.Type: GrantFiled: November 23, 1992Date of Patent: May 31, 1994Assignees: Ajinomto Co., Inc., Nippon Paint Co., Ltd.Inventors: Seiji Arimatsu, Chitoshi Kawaguchi, Kazunori Kanda, Yasuhiro Kimura, Masao Honma, Syoichi Asada, Atsushi Mashita, Koji Takeuchi
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Patent number: 5100579Abstract: Polyphenyl-based liquid crystal compounds represented by the following general formula (1) and liquid crystal composition containing the same: ##STR1## wherein R.sup.1 represents a straight or branched C.sub.1-18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group with or without optically active carbon, R.sup.2 represents a straight or branched C.sub.1-6 alkyl group, haloalkyl group or aralkyl group with or without optically active carbon, W represents (1) --OCO-- or --COO--, in which case T represents a halogen atom or a methyl group, or (2) a single bond, --O-- or --OCOO--, in which case T represents a halogen atom, X represents --OCO--, --COO--, --C.dbd.C--, --CH.dbd.N--, --N.dbd.CH, Y represents single bond, --O--, --COO--, --OCO--, --CH.sub.2 --, --OCH.sub.2 --, --COOCH.sub.2 -- or --OCOCH.sub.2 --, Z.sub.1 and Z.sub.2 represents a hydrogen or halogen atom, a cyano group or nitro group, Z.sub.1 may be the same or different from Z.sub.Type: GrantFiled: October 6, 1989Date of Patent: March 31, 1992Assignee: Ajinomoto Co., Inc.Inventors: Ryoichi Higuchi, Takao Sakurai, Tatsuru Tabohashi, Naoko Mikami, Kiriko Akaiwa, Eri Yamamoto, Koji Takeuchi
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Patent number: 5087517Abstract: Disclosed herein is a composite sheet for reproducible electrostatic image display or record comprising,a semiconductor film containing an electroconductive filler and having a uniform surface resistivity of a range of 10.sup.3 to 10.sup.10 106 /.quadrature. anda highly dielectric film having a specific dielectric constant of not less than 5, laminated with the semiconductor film.Type: GrantFiled: November 8, 1989Date of Patent: February 11, 1992Assignees: Ajinomoto Co., Inc., Sony CorporationInventors: Kouichiro Sagawa, Nobuyoshi Kitamura, Masako Ueda, Koji Takeuchi
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Patent number: 5057742Abstract: A discharge tube has a sealed envelope filled with a gas; an anode, cathode and shielding electrode built in the sealed envelope; and electrode holding pins. At least eight electrode holding pins penetrate a button stem so as to be arranged at predetermined intervals on a circle coaxial with the button stem, and, of at least eight electrode holding pins, at least three hold the cathode, at least three hold the shielding electrode, and at least two hold the anode.Type: GrantFiled: February 21, 1990Date of Patent: October 15, 1991Assignee: Hamamatsu Photonics K.K.Inventors: Koji Kawai, Yuji Shimazu, Koji Takeuchi
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Patent number: 4996286Abstract: A latent curing agent for epoxy resin, characterized in that the latent curing agent is the hydrazides of the formula (I);(NH.sub.2 NHCOCH.sub.2 CH.sub.2).sub.2 N(CH.sub.2).sub.11 CONHNH.sub.2 (I)The present curing agent is useful in formulating storable, one-package, heat-curable epoxy resin-based compositions.Type: GrantFiled: February 15, 1985Date of Patent: February 26, 1991Assignee: Ajinomoto Co., Inc.Inventors: Kiyomiki Hirai, Koji Takeuchi, Nobuo Ito, Masahiro Abe
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Patent number: 4911861Abstract: Polyphenyl-based liquid crystal compounds represented by the following general formula (1) and liquid crystal composition containing the same: ##STR1## wherein R.sup.1 represents a straight or branched C.sub.1-18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group with or without optically active carbon, R.sup.2 represents a straight or branched C.sub.1-6 alkyl group, haloalkyl group or aralkyl group with or without optically active carbon, W represents (1) --OCO-- or --COO--, in which case T represents a halogen atom or a methyl group, or (2) a single bond, --O-- or --OCOO--, in which case T represents a halogen atom, X represents --OCO--, --COO--, --C.dbd.C--, --CH.dbd.N--, --N.dbd.CH, Y represents single bond, --O--, --COO--, --OCO--, --CH.sub.2 --, --OCH.sub.2 --, --COOCH.sub.2 -- or --OCOCH.sub.2 --, Z.sub.1 and Z.sub.2 represent a hydrogen or halogen atom, a cyano group or nitro group, Z.sub.1 may be the same or different from Z.sub.Type: GrantFiled: November 16, 1987Date of Patent: March 27, 1990Assignee: Ajinomoto Co., Inc.Inventors: Ryoichi Higuchi, Takao Sakurai, Tatsuru Tabohashi, Naoko Mikami, Kiriko Akaiwa, Eri Yamamoto, Koji Takeuchi
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Patent number: 4897460Abstract: The present invention relates to an one-packed type epoxy resin composition. An object of the present invention is to provide epoxy resin composition which have good compatibility with epoxy resin, exhibit excellent stability during storage and heat stability, can be used at about room temperature over a long period of time and can be rapidly cured at a relatively low temperature upon heating.Type: GrantFiled: January 28, 1987Date of Patent: January 30, 1990Assignee: Ajinomoto Co., Inc.Inventors: Hiroshi Sakamoto, Koji Takeuchi
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Patent number: 4892676Abstract: A phenyl pyrimidine compound of this invention represented by the following formula (I) forms a smectic C phase and is useful for a constituent of a ferroelectric liquid crystal composition.R.sub.1 --Ph--Py--R.sub.2 (I)wherein Ph represents 1,4-phenylene group, Py represents 2,5-pyrimidine, R.sub.1 and R.sub.2 represent independently an acyloxy group or alkoxy group, either R.sub.1 or R.sub.2 represents a linear acyloxy group or a linear alkoxy group having more than seven carbon atoms. The compound of this invention has a properties of .circle.1 a low viscosity, .circle.2 of forming a smectic C phase (Sc), .circle.3 of being more than 70.degree. C. of an upper limit temperature of a Sc phase. By applying these properties it is able to give a good alignment effect of a composition comprising the compound using a conventional alignment effect of a TN type cell.Type: GrantFiled: September 8, 1987Date of Patent: January 9, 1990Assignee: Ajinomoto Co., Inc.Inventors: Takao Sakurai, Tadahiko Yokota, Eri Komatsu, Naoko Mikami, Ryoichi Higuchi, Koji Takeuchi
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Patent number: 4880561Abstract: Disclosed is an optically active cyclopropane compound represented by the formula (1): ##STR1## wherein R is an alkyl or cycloalkyl group, n is 0 or 1, Y.sup.4 is --CO.sub.2 CH.sub.2 --, --OCO-- or --OCH.sub.2 --, Y.sup.1, Y.sup.2 and Y.sup.3 independently represent --CO.sub.2 --, --OCO--, --O--, a direct bond or --CH.sub.2 O--, Z.sup.1, Z.sup.2, and Z.sup.3 independently represent ##STR2## A.sup.1, A.sup.2 and A.sup.3 independently represent fluorine, bromine, chlorine, a cyano group or hydrogen, and the mark ##STR3## indicates an asymmetric carbon atom. The optically active cyclopropane compound includes a compound which exhibits a ferroelectric liquid crystalline characteristic, and a compound which does not exhibit a ferroelectric liquid characteristic when used alone, but, can be used as a constituent of a ferroelectric liquid crystal composition.Type: GrantFiled: April 16, 1987Date of Patent: November 14, 1989Assignee: Ajinomoto Co., Inc.Inventors: Tatsuru Tabohashi, Takao Sakurai, Ryoichi Higuchi, Naoko Mikami, Eri Yamamoto, Koji Takeuchi