Patents by Inventor Naoya Kishi

Naoya Kishi 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).

  • CYCLOOLEFIN RING-OPENED COPOLYMER, COMPOSITION FOR ELECTRICALLY INSULATING MATERIAL, AND ELECTRICALLY INSULATING MATERIAL
    Publication number: 20230095059
    Abstract: A cycloolefin ring-opened copolymer includes a structural unit derived from a norbornene compound that includes a heteroelement-containing hydrocarbon group and a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group. In this copolymer, the structural unit derived from the norbornene compound that includes the heteroelement-containing hydrocarbon group has a proportional content of not less than 0.01 mol % and not more than 15.00 mol % when all structural units included in the copolymer are taken to be 100 mol %.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 30, 2023
    Applicant: ZEON CORPORATION
    Inventor: Naoya KISHI
  • HPLC apparatus for fractioning and preparing sample for NMR spectrometry and method of changing mobile phase
    Patent number: 6498040
    Abstract: A high-performance liquid chromatography apparatus and a process for conversion of mobile phase, enabling a trace amount of sample for NMR analysis to be efficiently separated and prepared, includes steps of separating a target ingredient from the sample by the high-performance liquid chromatography, trapping the target ingredient in a trapping column using a different mobile phase, replacing water by deuterium oxide and eluting this target ingredient from the trapping column using deuterated solvent other than deuterium oxide.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: December 24, 2002
    Assignee: Eisai Co., Ltd.
    Inventors: Yumi Yokoyama, Naoya Kishi, Masayuki Tanaka, Naoki Asakawa
  • Catalyst for producing living olefin polymer and process for producing the polymer
    Patent number: 6455649
    Abstract: A catalyst comprising an organoaluminum compound and a vanadium chelate compound having the lability to cause olefins to undergo living coordination polymerization is contacted with a terminal diolefin to obtain a catalyst for living polymer production. When the above contact is:conducted in the presence of a cycloolefin or an internal olefin, the yield of a living polymer can be improved. By modifying all ends of the living polymer obtained, a telechelic olefin polymer is obtained in which all the polymer chains are modified with functional groups.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: September 24, 2002
    Assignees: Japan as represented by Director General of Agency of Industrial Science and Technology, Japan Chemical Innovation Institute
    Inventors: Yoshihumi Fukui, Masahide Murata, Kazuo Soga, Michihiko Asai, Yasuzou Suzuki, Akira Miyazawa, Kenji Tsuchihara, Hiroyuki Ozaki, Masanao Kawabe, Naoya Kishi
  • Diazole-propenoic acid compounds
    Patent number: 5606073
    Abstract: Propenoic acid derivatives of the formula: ##STR1## where R.sup.15 and R.sup.17 are aryl or heteroalkyl groups and R.sup.16 and R.sup.18 are hydrogen, a lower alkyl or the like are intermediates used to prepare pharmaceutically active diazole propenoic acid compounds.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: February 25, 1997
    Assignee: Eisai Co., Ltd.
    Inventors: Masayuki Matsukura, Keizoh Satoh, Naoki Yoneda, Makoto Kaino, Kazutoshi Miyake, Yoshiharu Daiku, Naoya Kishi, Fusayo Yoshida, Kenichi Nomoto, Toshiaki Ogawa, Tadanobu Takamura, Koichi Nose, Mikio Tomimatsu, Masanori Mizuno, Shigeto Negi, Shigeru Souda
  • Propenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utility
    Patent number: 5541213
    Abstract: A novel propenoic acid derivative which exhibits adenosine A1 antagonism is defined by the general formula (I): ##STR1## (wherein A represents an aromatic ring; R.sup.1 represents aryl or the like; R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen, lower alkyl or the like; and R.sup.7 and R.sup.8 each represent lower alkyl or the like) or a pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: July 30, 1996
    Assignee: Eisai Co., Ltd.
    Inventors: Masayuki Matsukura, Keizoh Satoh, Naoki Yoneda, Makoto Kaino, Kazutoshi Miyake, Yoshiharu Daiku, Naoya Kishi, Fusayo Yoshida, Kenichi Nomoto, Toshiaki Ogawa, Tadanobu Takamura, Koichi Nose, Mikio Tomimatsu, Masanori Mizuno, Shigeto Negi, Shigeru Souda