Patents by Inventor Minoru Obata

Minoru Obata 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: 5466691
    Abstract: Thiophene compounds of the formula ##STR1## wherein each symbol is as defined in the specification, their pharmaceutically acceptable salts, pharmaceutical compositions containing said compound and additives for pharmaceuticals, and antipsychotics containing said compound as an active ingredient.The compound of the present invention has pharmacological actions required of antipsychotic, such as motility suppressing action, anti-apomorphine action, mothamphetamine antagonistic action, tetrabenazine-induced blepharoptosis enhancing action, and the like. The compound of the present invention is useful as an antipsychotic having less extrapyramidal side-effects or a non-benzodiazepine type antianxiety agent.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: November 14, 1995
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Tohru Nakao, Yuji Ono, Hiroshi Tanaka, Minoru Obata, Yasuto Morimoto
  • Patent number: 5458697
    Abstract: This is a highly purified metal comprising one metal selected from the group consisted of titanium, zirconium and hafnium. The highly purified metal has an Al content of not more than 10 ppm. It also has an oxygen content of more than 250 ppm, each of Fe, Ni and Cr contents not more than 10 ppm and each of Na and K contents not more than 0.1 ppm. The highly purified metal is obtained by either purifying crude metal by the iodide process or surface treating crude metal to remove a contaminated layer existing on the surface thereof and then melting The surface treated material with electron bean in a high vacuum.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: October 17, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Ishigami, Minoru Obata, Mituo Kawai, Michio Satou, Takashi Yamanobe, Toshihiro Maki, Noriaki Yagi, Shigeru Ando
  • Patent number: 5418071
    Abstract: In the present invention, metal silicide grains form an interlinked structure of a metal silicide phase, and Si grains which form a Si phase are discontinuously dispersed between the metal silicide phase to provide a sputtering target having a high density two-phased structure and having an aluminum content of 1 ppm or less. Because of the high density and high strength of the target, the generation of particles from the target during sputtering is reduced, and due to the reduced carbon content of the target, the mixing of carbon into the thin film during sputtering can be prevented.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: May 23, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michio Satou, Takashi Yamanobe, Takashi Ishigami, Mituo Kawai, Noriaki Yagi, Toshihiro Maki, Minoru Obata, Shigeru Ando
  • Patent number: 5196916
    Abstract: This is a highly purified metal comprising one metal selected from the group consisted of titanium, zirconium and hafnium. The highly purified metal has an Al content of not more than 10 ppm. It also has an oxygen content of not more than 250 ppm, each of Fe, Ni and Cr contents not more than 10 ppm and each of Na and K contents not more than 0.1 ppm. The highly purified metal is obtained by either purifying crude metal by the iodide process or surface treating crude metal to remove a contaminated layer existing on the surface thereof and then melting the surface treated material with electron beam in a high vacuum.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: March 23, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Ishigami, Minoru Obata, Mituo Kawai, Michio Satou, Takashi Yamanobe, Toshihiro Maki, Noriaki Yagi, Shigeru Ando
  • Patent number: 5184888
    Abstract: An illuminating portion of a vanity mirror device disposed in a recessed portion in a body of the vanity mirror device and at one side of a mirror. A light conducting plate formed of a transparent material is fitted in the recessed portion and the front surface of the light conducting plate is located flush with the front surface of the body. And an electric bulb is located to oppose one of end surfaces of the light conducting plate.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: February 9, 1993
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Toranosuke Sakuma, Minoru Obata
  • Patent number: 4931443
    Abstract: A piperazine compound represented by the general formula: ##STR1## (wherein each of the symbols is as defined above) or a pharmaceutically acceptable acid addition salt thereof, and pharmaceutical uses thereof as well as intermediates thereof are disclosed. The above piperazine compounds possess antipsychotic activities with less adverse reaction on the extrapyramidal system and are useful as drugs.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: June 5, 1990
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Toru Nakao, Kenji Morita, Minoru Obata, Yasuto Morimoto
  • Patent number: 4918074
    Abstract: A polyazaheterocycle compound of the formula: ##STR1## or a pharmaceutically acceptable salt thereof, wherein each symbol is as defined in the specification.Said compounds exhibit calcium antagonistic and/or calcium agonistic activities.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: April 17, 1990
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Yoshinao Tsuda, Tadashi Mishina, Minoru Obata, Kazuhiko Araki, Jun Inui, Tadao Nakamura
  • Patent number: 4849421
    Abstract: A benzothiepino 5,4-c]pyridazine compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and each is hydrogen, halogen, trifluoromethyl, hydroxy, amino, nitro, cyano, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, or C.sub.2-5 alkanoylamino, R.sup.3 is hydrogen, C.sub.1-8 alkyl, hydroxy-C.sub.1-4 alkyl, C.sub.2-5 alkanoyloxy-C.sub.1-4 alkyl, aryl, aryl-C.sub.1-4 alkyl, heteroaryl, or substituted aryl, aryl-C.sub.1-4 alkyl or heteroaryl by 1 to 3 substituents selected from the group consisting of halogen, trifluoromethyl, hydroxy, amino, nitro, cyano, C.sub.1-4 alkyl, C.sub.1-4 alkoxy and C.sub.2-5 alkanoylamino on the armoatic ring, n is 0, 1 or 2, and the bond between the 4-position and the 4a-position is single bond or double bond.Said compounds exhibit anti-anxietic activity and are useful as anti-anxiety agent.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: July 18, 1989
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Toru Nakao, Minoru Kawakami, Minoru Obata, Kenji Morita
  • Patent number: 4713381
    Abstract: An oxodiazine compound of the formula: ##STR1## or a pharamceutically acceptable acid addition salt thereof, wherein each of R.sup.1 and R.sup.2 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkoxy-C.sub.1-4 alkoxy, phenyl-C.sub.1-4 alkyl-oxy which may be optionally substituted by at least one substituent selected from the group consisting of halogen, C.sub.1-4 alkyl and C.sub.1-4 alkoxy on the phenyl nucleus, or phenyl which may be substituted by at least one substituent selected from the group consisting of halogen, C.sub.1-4 alkyl and C.sub.1-4 alkoxy on the phenyl nucleus; X is --S--, --CH.dbd.N-- or --C(R.sup.3).dbd.C(R.sup.4)--, where each of R.sup.3 and R.sup.4 is hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, C.sub.1-4 alkoxy-C.sub.1-4 alkoxy or phenyl-C.sub.1-4 alkyl-oxy which may be optionally substituted by at least one substituent selected from the group consisting of halogen, C.sub.1-4 alkyl and C.sub.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: December 15, 1987
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Hideki Ao, Minoru Obata, Tsutomu Yamanaka, Hiroshi Mikashima
  • Patent number: 4678785
    Abstract: A thiadiazine compound of the formula: ##STR1## a method for preparing said compound and a pharmaceutical composition containing said compound, wherein X is methylene which may be optionally substituted by an alkyl of up to 3 carbon atoms; R is hydrogen atom or methyl group; and n is an integer of 1 or 2.Since the compounds exhibit potent cardiotonic and coronary vasodilator activities and further inhibitory activity on platelet aggregation, they are useful as cardiotonic and antithrombotic drugs.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: July 7, 1987
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Hideki Ao, Minoru Obata, Jun Inui