Patents by Inventor Koichi Fujita

Koichi Fujita 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).

  • Patent number: 8309561
    Abstract: Specific phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 13, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Kazuyuki Sagi, Tatsuya Okuzumi, Tatsuhiro Yamada, Shunsuke Kageyama, Yoichiro Shima, Tadakiyo Nakagawa, Munetaka Tokumasu, Masayuki Sugiki, Hajime Ito, Itsuya Tanabe, Tamotsu Suzuki, Akira Nakayama, Kazuyuki Ubukata, Kenji Shinkai, Yasuhiro Tanaka, Misato Noguchi, Ayatoshi Andou, Yoriko Yamamoto, Noriyasu Kataoka, Koichi Fujita
  • Patent number: 8268844
    Abstract: Crystals of isopropyl ester of N-(2,6-dichlorobenzoyl)-4-[6-(methylamino)methyl-1-methyl-2,4-dioxo-1,4-dihydroquinazoline-3(2H)-yl]-L-phenylalanine hydrochloride: are useful as ?4 integrin inhibitors.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: September 18, 2012
    Assignee: Ajinomoto Co., Inc.
    Inventors: Koichi Fujita, Shinichiro Takahashi, Tatsuya Okuzumi, Tatsuhiro Yamada, Kotaro Okado, Noriyasu Kataoka, Haruko Hirashima, Hideyuki Yamaguchi
  • Publication number: 20110313154
    Abstract: A method for preparing a phenylalanine derivative having a quinazoline-dione ring represented by the following formula (1) or a pharmaceutically acceptable salt thereof, comprising the following steps (a), (b) and (c): (a) reacting an acyl phenylalanine derivative represented by the following formula (2): with a carbonyl group-introducing reagent and a specific anthranilic acid derivative to thus form the corresponding carboxy-asymmetric urea derivative; (b) converting the carboxy-asymmetric urea derivative into the corresponding quinazoline-dione derivative in the presence of a carboxyl group-activating agent: (c) if desired, substituting an N-alkyl group for the hydrogen atom bonded to the nitrogen atom present in the quinazoline-dione ring of the quinazoline-dione derivative using an N-alkylation agent and then deprotecting the resulting product, when the substituent R3? which is a group corresponding to R3 is protected.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 22, 2011
    Applicant: AJINOMOTO CO., INC.
    Inventors: Noriyasu KATAOKA, Kotaro OKADO, Tatsuhiro YAMADA, Koichi FUJITA, Tamotsu SUZUKI, Tatsuya OKUZUMI, Masayuki SUGIKI, Akinori TATARA
  • Patent number: 8058432
    Abstract: The present invention releates to a method for preparing a phenylalanine compound having a quinazoline-dione ring represented by the following formula (1) or a pharmaceutically acceptable salt thereof: where R1-R4 are defined herein. The method involves reacting a specified acyl phenylalanine compound with a carbonyl group-introducing reagent and a specified anthranilic acid compound to form a carboxy-asymmetric urea compound which is converted to a quinazoline-dione compound in the presence of a carboxyl group-activating agent.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 15, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Noriyasu Kataoka, Kotaro Okado, Tatsuhiro Yamada, Koichi Fujita, Tamotsu Suzuki, Tatsuya Okuzumi, Masayuki Sugiki, Akinori Tatara
  • Patent number: 7938026
    Abstract: A magnetostrictive torque sensor comprising: a magnetostrictive film provided on a ferromagnetic shaft; a bias magnetization device which applies a bias magnetic field to the shaft to magnetize the shaft; and a detection device which detects a change in magnetism of the magnetostrictive film, wherein: a torque acting on the shaft calculated based on the detection results of the detection device; and the bias magnetization device applies a bias magnetic field to the shaft at a predetermined timing.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 10, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Oniwa, Takashi Miyoshi, Koichi Fujita, Atsuhiko Yoneda, Yasuo Shimizu
  • Publication number: 20110009434
    Abstract: Crystals of isopropyl ester of N-(2,6-dichlorobenzoyl)-4-[6-(methylamino)methyl-1-methyl-2,4-dioxo-1,4-dihydroquinazoline-3(2H)-yl]-L-phenylalanine hydrochloride are useful as ?4 integrin inhibitors.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Applicant: AJINOMOTO CO., INC.
    Inventors: Koichi FUJITA, Shinichiro Takahashi, Tatsuya Okuzumi, Tatsuhiro Yamada, Kotaro Okado, Noriyasu Kataoka, Haruko Hirashima, Hideyuki Yamaguchi
  • Patent number: 7842700
    Abstract: Crystals of isopropyl ester of N-(2,6-dichlorobenzoyl)-4-[6-(methylamino)methyl-1-methyl-2,4-dioxo-1,4-dihydroquinazoline-3(2H)-yl]-L-phenylalanine hydrochloride are useful as ?4 integrin inhibitors.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 30, 2010
    Assignee: Ajinomoto Co., Inc.
    Inventors: Koichi Fujita, Shinichiro Takahashi, Tatsuya Okuzumi, Tatsuhiro Yamada, Kotaro Okado, Noriyasu Kataoka, Haruko Hirashima, Hideyuki Yamaguchi
  • Publication number: 20090318688
    Abstract: A method for preparing a phenylalanine derivative having a quinazoline-dione ring represented by the following formula (1) or a pharmaceutically acceptable salt thereof, comprising the following steps (a), (b) and (c): (a) reacting an acyl phenylalanine derivative represented by the following formula (2): with a carbonyl group-introducing reagent and a specific anthranilic acid derivative to thus form the corresponding carboxy-asymmetric urea derivative; (b) converting the carboxy-asymmetric urea derivative into the corresponding quinazoline-dione derivative in the presence of a carboxyl group-activating agent: (c) if desired, substituting an N-alkyl group for the hydrogen atom bonded to the nitrogen atom present in the quinazoline-dione ring of the quinazoline-dione derivative using an N-alkylation agent and then deprotecting the resulting product, when the substituent R3? which is a group corresponding to R3 is protected.
    Type: Application
    Filed: May 22, 2009
    Publication date: December 24, 2009
    Applicant: AJINOMOTO CO., INC.
    Inventors: Noriyasu KATAOKA, Kotaro OKADO, Tatsuhiro YAMADA, Koichi FUJITA, Tamotsu SUZUKI, Tatsuya OKUZUMI, Masayuki SUGIKI, Akinori TATARA
  • Publication number: 20090314573
    Abstract: A magnetostrictive torque sensor comprising: a magnetostrictive film provided on a ferromagnetic shaft; a bias magnetization device which applies a bias magnetic field to the shaft to magnetize the shaft; and a detection device which detects a change in magnetism of the magnetostrictive film, wherein: a torque acting on the shaft calculated based on the detection results of the detection device; and the bias magnetization device applies a bias magnetic field to the shaft at a predetermined timing.
    Type: Application
    Filed: November 26, 2008
    Publication date: December 24, 2009
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshihiro ONIWA, Takashi Miyoshi, Koichi Fujita, Atsuhiko Yoneda, Yasuo Shimizu
  • Publication number: 20090170911
    Abstract: Azole compounds represented by formula I: wherein ring A is isoxazole and the like, R1 is a substituted or unsubstituted aryl group and the like, R2 is a hydrogen atom and the like, and R3 is a substituted or unsubstituted alkyl group and the like, and pharmaceutically acceptable salts thereof inhibit the physiological activity of lysophosphatidic acid (LPA), and are useful as for the prophylaxis or treatment of diseases in which inhibition of the physiological activity of LPA is useful for the prophylaxis or treatment thereof, such as diseases involving the LPA receptor.
    Type: Application
    Filed: February 20, 2009
    Publication date: July 2, 2009
    Applicant: AJINOMOTO CO. INC
    Inventors: Takashi YAMAMOTO, Akira Chiba, Koichi Fujita, Yuka Kataba, Koji Ohsumi, Sayaka Asari, Naoyuki Fukuchi, Misato Noguchi, Itsuya Tanabe, Chiori Ijichi, Naoko Oomuta, Yuko Iida, Satoshi Iwayama
  • Patent number: 7549508
    Abstract: A muffler includes a shell main that is formed in a cylinder with two openings opposite to each other being apart from each other in an axial direction of the shell main body by rolling a flat plate to have an overlapped portion overlapping an inner end portion and a shell portion, and a pair of end plates that are partially inserted in the openings of the shell main body and fixed to the shell main body. The inner end portion is formed with two cut-off portions at opening-side edges of the inner end portion, respectively, to avoid interference between the inner end portion and the end plates when the end plates are inserted into the openings of the shell main body.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: June 23, 2009
    Assignee: Calsonic Kansei Corporation
    Inventors: Masahiro Okawara, Koichi Fujita, Yoshiyuki Fujii
  • Patent number: 7517996
    Abstract: Azole compounds represented by formula I: wherein ring A is isoxazole and the like, R1 is a substituted or unsubstituted aryl group and the like, R2 is a hydrogen atom and the like, and R3 is a substituted or unsubstituted alkyl group and the like, and pharmaceutically acceptable salts thereof inhibit the physiological activity of lysophosphatidic acid (LPA), and are useful as for the prophylaxis or treatment of diseases in which inhibition of the physiological activity of LPA is useful for the prophylaxis or treatment thereof, such as diseases involving the LPA receptor.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: April 14, 2009
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takashi Yamamoto, Akira Chiba, Koichi Fujita, Yuka Kataba, Koji Ohsumi, Sayaka Asari, Naoyuki Fukuchi, Misato Noguchi, Itsuya Tanabe, Chiori Ijichi, Naoko Oomuta, Yuko Iida, Satoshi Iwayama
  • Publication number: 20090047473
    Abstract: A Ni-containing plating film includes a lower plating film and an upper plating film laminated on lower plating film. The lower plating film is formed by plating with no saccharin sodium added to a plating bath, and the upper plating film is formed by plating with saccharin sodium added to a plating bath. In the upper plating film, a NiS layer exists at a position below the film surface.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 19, 2009
    Inventors: Yoshihiro Kanada, Shio Takahashi, Koichi Fujita, Mitsuhiro Gotoh
  • Publication number: 20090018161
    Abstract: The present invention provides a more effective gastrointestinal function promoter. The present invention also provides a method for the prophylaxis or improvement of functional gastrointestinal disorders, a method for appetite regulation and the like. The present invention also provides a method for screening for a substance capable of promoting a gastrointestinal function. The present invention provides a gastrointestinal function promoter containing a T1R agonist as an active ingredient and a method for the prophylaxis or improvement of functional gastrointestinal disorders, a method for appetite regulation and the like by administering a T1R agonist. The present invention also provides a method of screening for a substance capable of promoting a gastrointestinal function which method uses a cell expressing T1R receptor.
    Type: Application
    Filed: May 2, 2008
    Publication date: January 15, 2009
    Applicant: AJINOMOTO CO. INC.
    Inventors: Tatsuro Tanaka, Hisayuki Uneyama, Shinichi Fujita, Saori Ogawa, Yusuke Amino, Seiji Shiraishi, Koichi Fujita, Tatsuhiro Yamada, Takashi Yamamoto, Takeshi Aihara, Manabu Suzuki
  • Publication number: 20080122060
    Abstract: A semiconductor device packaged in a non-hermetic package includes a semiconductor substrate; a wiring metal film on the semiconductor substrate; a plating power supply film on the wiring metal film; an Au plated portion on the plating power supply film; a metal film covering the Au plated portion; and an insulating protective film covering the metal film. The metal film is a material having corrosion resistance properties such that a potential-pH diagram of the metal material predominantly includes a corrosion-free region and a passive region and either does not include a corrosion region or includes a very small corrosion region, the potential-pH diagram showing the effects of electrical potential and pH on corrosion of the metal material.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 29, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoichi NOGAMI, Koichi FUJITA
  • Publication number: 20080108637
    Abstract: The present invention discloses crystals of phenylalanine derivatives which have a specific structural formula, and particularly crystals which are easy to be used; crystals excellent in preservation stability, humidity resistance or solubility; and crystals which can be manufactured on the industrial scale. The present invention also discloses the production method thereof and use thereof, and particularly the use thereof as an active ingredient of pharmaceutical compositions.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 8, 2008
    Applicant: AJINOMOTO CO., INC.
    Inventors: Koichi FUJITA, Shinichiro Takahashi, Tatsuya Okuzumi, Tatsuhiro Yamada, Kotaro Okado, Noriyasu Kataoka, Haruko Hirashima, Hideyuki Yamaguchi
  • Publication number: 20080108634
    Abstract: Specific phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 8, 2008
    Applicant: Ajinomoto Co., Inc.
    Inventors: Kazuyuki SAGI, Tatsuya Okuzumi, Tatsuhiro Yamada, Shunsuke Kageyama, Yoichiro Shima, Tadakiyo Nakagawa, Munetaka Tokumasu, Masayuki Sugiki, Hajime Ito, Itsuya Tanabe, Tamotsu Suzuki, Akira Nakayama, Kazuyuki Ubukata, Kenji Shinkai, Yasuhiro Tanaka, Misato Noguchi, Ayatoshi Andou, Yoriko Yamamoto, Noriyasu Kataoka, Koichi Fujita
  • Patent number: 7345049
    Abstract: Specific phenylalanine derivatives and analogues thereof have an antagonistic activity to ?4 integrin. They are used as therapeutic agents for various diseases concerning ?4 integrin.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 18, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Kazuyuki Sagi, Tatsuya Okuzumi, Tatsuhiro Yamada, Shunsuke Kageyama, Yoichiro Shima, Tadakiyo Nakagawa, Munetaka Tokumasu, Masayuki Sugiki, Hajime Ito, Itsuya Tanabe, Tamotsu Suzuki, Akira Nakayama, Kazuyuki Ubukata, Kenji Shinkai, Yasuhiro Tanaka, Misato Noguchi, Ayatoshi Andou, Yoriko Yamamoto, Noriyasu Kataoka, Koichi Fujita
  • Patent number: 7339455
    Abstract: A platinum temperature sensor incorporating an evaporation-suppressing layer containing platinum in the vicinity of the platinum thin-film resistor of the sensor. The evaporation-suppressing layer is preferably positioned between the platinum resistor and a porous layer that is formed close to the platinum resistor and in contact with the evaporation-suppressing layer.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: March 4, 2008
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Koichi Fujita, Masatoshi Ueki, Hitoshi Yokoi
  • Patent number: 7257852
    Abstract: A suction unit for use in an electric vacuum cleaner and an electric vacuum cleaner includes a floor nozzle and a mini nozzle detachably secured to the floor nozzle. When a suction head of the mini nozzle is secured to the floor nozzle, an air communication is provided therebetween. Further, the mini nozzle is provided with an ion generating unit.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: August 21, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Shibuya, Koichi Fujita, Masakuni Soejima