Patents by Inventor Takashi Inaba

Takashi Inaba 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: 5962704
    Abstract: A method for producing an amide derivative of the formula ?XV! ##STR1## wherein each symbol is as defined in the specification, and an enantiomer thereof, a novel intermediate useful for producing said compound and a production method thereof. The production method of the present invention is extremely easy and simple as compared to the conventional methods, and enables effective production of compound ?XV! at high yields, which includes compound ?XVI! having an HIV protease inhibitory action. In addition, the novel intermediates of the present invention are extremely useful as intermediates for producing not only the aforementioned compound ?XVI! but also compounds useful as X-ray contrast media.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: October 5, 1999
    Assignees: Japan Tobacco Inc., Agouron Pharmaceuticals, Inc.
    Inventors: Takashi Inaba, Yasuki Yamada
  • Patent number: 5906311
    Abstract: A surface metal plate 2 made of aluminium or aluminium alloy is overlayed upon a backing metal plate 1 and integrally bonded by cold rolling bonding of a rolling machine 30. After that, the thus obtained composite metal plate 3 is annealed, so that the bonding strength between a surface metal layer 1a having a thickness of 2 to 8 mm and a backing metal layer 2a is enhanced.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: May 25, 1999
    Assignee: Daido Metal Company Ltd.
    Inventors: Susumu Tsuji, Hideyuki Kidokoro, Takashi Inaba, Yasuo Ido, Masaaki Sakamoto
  • Patent number: 5361965
    Abstract: A secondary coil for a linear motor, which is a composite metal plate comprising a backing metal layer 1, an intermediate bond metal layer 2 and a surface metal layer 3 which are integrally connected, the intermediate bond metal layer being formed of aluminum or aluminum alloy, the surface metal layer being formed of copper or copper alloy having a thickness of 2 to 8 mm. A copper plate or a copper alloy plate for the surface layer and an aluminum plate or an aluminum alloy plate for the intermediate layer are placed on each other and connected by rolling. The surface-layer metal plate with the bond layer is placed on a metal plate for the backing metal layer, with the bond layer being contacted with the metal plate for the backing metal layer, and two plates are connected by rolling.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: November 8, 1994
    Assignee: Daido Metal Company, Ltd.
    Inventors: Yukimaro Tsukamoto, Yasuo Ido, Susumu Tuzi, Takashi Inaba
  • Patent number: 5245034
    Abstract: Novel quinoline sulfonamino derivatives having a vessel smooth muscle relaxation activity as well as a platelet agglutination inhibitory activity and inhibitory activity to protein kinase A, myosin light chain kinase, proteinkinase C, and calmodulindependent proteinkinase II, but having little action or cardio function; a process for the production of the derivatives, and a pharmaceutical composition containing the derivative.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: September 14, 1993
    Assignee: Kiroyoshi Hidaka
    Inventors: Hiroyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh, Osamu Sakuma, Masayuki Yuasa, Tadashi Morita, Tadashi Toshioka, Isao Umezawa, Takashi Inaba
  • Patent number: 5245050
    Abstract: A compound represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different, and represent a hydrogen or halogen, and ring-opened free acid, amides and salts thereof are provided. The present invention also provides a process for the production of the above-mentioned compound starting from the known compound ML-236B.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: September 14, 1993
    Assignee: Tobishi Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Akira Endo, Tadashi Toshioka, Isao Umezawa, Masayuki Yuasa, Takashi Inaba, Tsutomu Inoue
  • Patent number: 5242861
    Abstract: In a process for manufacturing a semiconductor device having a multi-layer wiring structure, a silicon oxide film is deposited on the surface of second level wiring conductors formed on a power supply layer for electroplating, and then, the deposited silicon oxide film is etched back so that the silicon oxide film remains only on the side surfaces of the second level wiring conductors. Thereafter, the power supply layer is removed by the sputter etching, and the silicon oxide film is removed together with the metal deposit adhered to the surface of the silicon oxide film at the time of the sputter etching. Accordingly, the short-circuiting of adjacent second level wiring conductors which would be caused because of peeling-off of the metal deposit is prevented.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: September 7, 1993
    Assignee: NEC Corporation
    Inventor: Takashi Inaba
  • Patent number: 5216150
    Abstract: Novel quinoline sulfonamino derivatives having a vessel smooth muscle relaxation activity as well as a platelet agglutination inhibitory activity and inhibitory activity to protein kinase A, myosin light chain kinase, proteinkinase C, and calmodulindependent proteinkinase II, but having little action or cardio function; a process for the production of the derivatives, and a pharmaceutical composition containing the derivative.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: June 1, 1993
    Assignees: Hiroyoshi Hidaka, Tobishi Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Hiroyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh, Osamu Sakuma, Masayuki Yuasa, Tadashi Morita, Tadashi Toshioka, Isao Umezawa, Takashi Inaba
  • Patent number: 5081246
    Abstract: Novel quinoline sulfonamino derivatives having a vessel smooth muscle relaxation activity as well as a platelet agglutination inhibitory activity and inhibitory activity to protein kinase A, myosin light chain kinase, proteinkinase C, and calmodulindependent proteinkinase II, but having little action or cardio function; a process for the production of the derivatives, and a pharmaceutical composition containing the derivative.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: January 14, 1992
    Assignees: Hiroyoshi Hidaka, Tobishi Yakuhin Kogyo Kabushiki Kaisha
    Inventors: Horoyoshi Hidaka, Tomohiko Ishikawa, Masatoshi Hagiwara, Tsutomu Inoue, Kenji Naitoh, Osamu Sakuma, Masayuki Yuasa, Tadashi Morita, Tadashi Toshioka, Isao Umezawa, Takashi Inaba
  • Patent number: 5059692
    Abstract: Novel compounds represented by the formula: ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 3 carbon atoms, R.sub.2 represents an amino group or a group of formula ##STR2## in which R.sub.4 represents an alkyl group having 1 to 3 carbon atoms, R.sub.5 represents an alkyl group having 1 to 3 carbon atoms or may combine with R.sub.6 to form a five or six membered ring containing 4 to 5 carbon atoms, R.sub.6 represents a hydrogen atom or may combine with R.sub.5 to form a five or six membered ring containing 4 to 5 carbon atoms, R.sub.3 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a halogen atom, X represents a carbonyl group or a methylene group, Y represents a sulfur atom or a vinylene group and pharmaceutically acceptable salts thereof which exhibit a vasodilating activity and inhibitory activity for platelet aggregation. Thus, they are useful as therapeutic agents for treatment of angina pectoris, hypertension, throbosis and the like.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: October 22, 1991
    Inventors: Hiroyoshi Hidaka, Tomohiko Ishikawa, Tsutomu Inoue, Masayuki Yuasa, Takashi Inaba, Kenji Naito, Osamu Sakuma, Tadashi Morita, Shinpei Kidokoro
  • Patent number: 5014552
    Abstract: A flow sensor comprising a flow passage, a rectifying element such as a plurality of screens or a honeycomb structure or both, arranged in the flow passage, a flow passage reducer for reducing the flow passage behind the rectifying element, and a thermal flow sensor, such as for example a micro bridge sensor, mounted at a location immediately behind the reducer. The above structure can largely reduce disturbance in flow to thereby enable highly accurate measurements of a wide range of flow without a low pass filter.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: May 14, 1991
    Assignee: Yamatake-Honeywell Co., Ltd.
    Inventors: Shoji Kamiunten, Shigeru Aoshima, Takashi Tsumura, Kouichi Ochiai, Takashi Inaba
  • Patent number: 4753685
    Abstract: Disclosed herein are: (1) a formable bake-hardening type aluminum alloy sheet, containing 0.2-0.7 wt % of Fe, 0.05-0.5 wt % of Cu, 0.5-2.5 wt % of Mg, 0.5-2.0 wt % of Mn and optionally 0.05-1 wt % of Zn under the condition of Fe wt % +(Mn wt %.times.1.07)+(Mg wt %.times.0.27).ltoreq.3.0, and intermetallic compounds of less than 45 microns in size and an areal rate of 0.5-5% as observed from the surface of a rolled sheet and an average crystal grain width smaller than 25 microns; and (2) a method for producing such bake-hardening type aluminum alloy sheets.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: June 28, 1988
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Eiki Usui, Takashi Inaba