Patents by Inventor Chihiro Narumi

Chihiro Narumi 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).

  • METHOD FOR PRODUCING PKROSTAGLANDIN
    Publication number: 20220169600
    Abstract: The present invention provides a method for producing a compound represented by Formula (1a), (1b), or (1c), comprising a step of reducing a compound represented by Formula (3) in the presence of a metal complex represented by Formula (5), an inorganic base, and a solvent under a hydrogen atmosphere to obtain a compound represented by Formula (4). In the formula, Ar1 is an aryl group, each Are is independently a phenyl group or the like, W is a biphenyl group or the like, Z is an ethylene group that is substituted with a phenyl group or the like, and L is a chlorine atom or if Z has a phenyl group or a C1-3 alkoxyphenyl group, L is one of carbon atoms constituting the phenyl group or the C1-3 alkoxyphenyl group.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 2, 2022
    Applicant: KYOWA PHARMA CHEMICAL CO., LTD.
    Inventors: Tatsuhiro ASANO, Ryota MAENISHI, Junpei TAKENAKA, Takayuki ATAGO, Chihiro NARUMI
  • Telecommunication apparatus having a capability of translation
    Patent number: 5701497
    Abstract: A telecommunication apparatus includes a translation unit for translating a received document from a source language to a target language and discriminates the source language based upon a protocol message transmitted from a remote terminal for setting up a connection.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: December 23, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Yamauchi, Hiroshi Tamura, Takashi Katooka, Naoki Tsumura, Naoto Hikichi, Chihiro Narumi, Takashi Ezaki, Shozo Kudo, Yoshihisa Ooguro