Patents by Inventor Eiichi Koshinaka

Eiichi Koshinaka 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).

  • Monofumarate salt of 3-pyridylmethyl nicotinate
    Patent number: 4115392
    Abstract: The monofumarate of 3-pyridylmethyl nicotinate and the method of making same. The monofumaric acid addition salt of 3-pyridylmethyl nicotinate is prepared by reacting approximately equimolar amounts of fumaric acid and 3-pyridylmethyl nicotinate.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: September 19, 1978
    Assignee: Hokuriku Pharmaceutical Co., Ltd.
    Inventors: Hideo Kato, Eiichi Koshinaka, Sakae Kurata, Ikuo Uesaka
  • Diazabicycloalkane derivatives
    Patent number: 4093630
    Abstract: Novel diazabicycloalkane derivatives of the formula ##STR1## wherein R is hydrogen or a halogen including acid addition salts thereof are provided including a process for their preparation. These compounds are useful as antihistamines.
    Type: Grant
    Filed: June 8, 1977
    Date of Patent: June 6, 1978
    Assignee: Hokuriku Pharmaceutical Co., Ltd.
    Inventors: Hideo Kato, Tomoyasu Nishikawa, Eiichi Koshinaka
  • 1',4'-Dihydro-1-methyl-spiro [piperidine and pyrrolidine-2,3'(2'H)quinoline]-2'-one compounds
    Patent number: 3936459
    Abstract: Spiro compounds having the structural formula ##SPC1##Where n is an integer of 1 or 2,Are disclosed. These compounds are useful as analgetic, antihistamine and spasmolytic agents. They are indicated in the management of conditions such as headache, seasonal allergies and the like.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: February 3, 1976
    Assignee: Hokuriku Pharmaceutical Co., Ltd.
    Inventors: Hideo Kato, Eiichi Koshinaka
  • 1',4'-Dihydro-1-methyl-spiro[piperidine and pyrolidine-2,3'(2'H)quinoline] c
    Patent number: 3936460
    Abstract: Spiro-compounds of the formula: ##SPC1##Are disclosed. These compounds are useful as analgetic, antihistamine and spasmolytic agents. They are indicated in the management of conditions such as headache, seasonal allergies and the like.
    Type: Grant
    Filed: December 10, 1974
    Date of Patent: February 3, 1976
    Assignee: Hokuriku Pharmaceutical Co., Ltd.
    Inventors: Hideo Kato, Eiichi Koshinaka