Patents by Inventor Chika Nakanishi

Chika Nakanishi 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).

  • Metal Removal Filtering Material and Cartridge Filter
    Publication number: 20240123435
    Abstract: A metal removal filtering material having a basis weight of 30 to 120 g/m2 including a polyethylene porous base material and graft chains fixed to the polyethylene porous base material and having a functional group. The graft chains have a graft rate of 40 to 150%. The functional group is selected from a quaternary ammonium group, a primary, secondary, or tertiary amino group, an iminodiacetic acid group, a phosphate group, and an iminodiethanol group.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 18, 2024
    Inventors: Toshihiro Nakanishi, Chika Naruoka
  • Dihydropyridine derivatives
    Patent number: 7247645
    Abstract: Compounds having a selective N-type calcium channel antagonistic activity are provided. Dihydropyridine derivatives represented by the following formula: analogs thereof and pharmaceutically acceptable salts thereof have an activity of selectively inhibiting the action of N-type calcium channel, and they are used as therapeutic agents for various diseases relating to N-type calcium channel.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: July 24, 2007
    Assignee: Ajinomoto Co., Inc.
    Inventors: Chika Nakanishi, Yoko Masuzawa, Masako Hagihara, Takashi Yamamoto, Hiroyuki Matsueda, Seiji Ohno, Seiji Niwa, Morikazu Kito, Akira Takahara, Yukitsugu Ono, Tomoko Takeda, Yuki Kajigaya, Hajime Koganei
  • Dihydropyridine derivatives
    Publication number: 20020147222
    Abstract: Compounds having a selective N-type calcium channel antagonistic activity are provided.
    Type: Application
    Filed: December 20, 2001
    Publication date: October 10, 2002
    Applicant: AJINOMOTO CO. INC
    Inventors: Chika Nakanishi, Yoko Masuzawa, Masako Hagihara, Takashi Yamamoto, Hiroyuki Matsueda, Seiji Ohno, Seiji Niwa, Morikazu Kito, Akira Takahara, Yukitsugu Ono, Tomoko Takeda, Yuki Kajigaya, Hajime Koganei