Patents by Inventor Hideki Arima

Hideki Arima 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).

  • Publication number: 20220398727
    Abstract: A non-transitory computer-readable recording medium has stored therein an evaluating program for causing a computer to execute a process including: specifying a wall of an inspection target in two or more moving images being obtained by photographing two types of cross sections of the inspection target, the two types of cross sections being orthogonal to each other; evaluating photographing quality of each of a plurality of first divisional regions obtained by dividing a region corresponding to the wall specified in a first image related to a first cross section among the two or more moving images; and evaluating photographing quality of each of a plurality of second divisional regions obtained by dividing a region corresponding to the wall specified in a second image related to a second cross section among the two or more moving images, the second cross section being different from the first cross section.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 15, 2022
    Applicants: FUJITSU LIMITED, RIKEN, National University Corporation Tokyo Medical and Dental University, NATIONAL CANCER CENTER
    Inventors: Akira SAKAI, Masaaki KOMATSU, Tetsuo SASANO, Hideki ARIMA, Ryuji HAMAMOTO
  • Patent number: 5616715
    Abstract: A process is provided for producing diastereoisomer A or a pharmaceutically acceptable acid addition salt of 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl) ester 5-methyl ester which comprises subjecting a mixture of diastereoisomers A and B of 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl) ester 5-methyl ester to column chromatography using silica gel as a carrier and a mixture of ethyl acetate and acetic acid as an eluant, and then separating the acetate of diastereoisomer A from the eluate, or treating the acetate with a base, or further treating the resulting diastereoisomer A with a pharmaceutically acceptable acid.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: April 1, 1997
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuharu Tamazawa, Tadao Kojima, Hideki Arima, Yukiyasu Murakami, Yasuo Isomura, Minoru Okada, Toichi Takenaka, Kiyoshi Takanobu
  • Patent number: 5463064
    Abstract: A dextro-rotatory optical isomer of diastereoisomer A of (.+-.)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl)ester 5-methyl ester is provided having the formula ##STR1## and wherein the melting point of the hydrochloride of the dextro-rotatory optical isomer is 223.degree. to 230.degree. C. (decomp.), or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: October 31, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuharu Tamazawa, Tadao Kojima, Hideki Arima, Yukiyasu Murakami, Yasuo Isomura, Minoru Okada, Kiyoshi Takanobu, Toichi Takenaka
  • Patent number: 5364872
    Abstract: The diastereoisomer A of a dihydropyridine-3,5-dicarboxylic acid ester derivative is provided as well as its pharmaceutically acceptable acid addition salts. The invention further discloses a process for producing the compounds and their use as medicaments in imparting vasodilating activity.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: November 15, 1994
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuharu Tamazawa, Tadao Kojima, Hideki Arima, Yukiyasu Murakami, Yasuo Isomura, Minoru Okada, Toichi Takenaka, Kiyoshi Takanobu
  • Patent number: 4618627
    Abstract: A catechol derivative represented by the formula ##STR1## The compounds of this invention are useful for the prophylaxis and treatment for various allergic diseases, ischemic heart diseases and inflammations caused by slow reacting substance of anaphylaxis (SRS-A), since the compounds inhibit very potently the formation and release of SRS-A.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: October 21, 1986
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Murase, Toshiyasu Mase, Hideki Arima, Kenichi Tomioka
  • Patent number: 4464384
    Abstract: Novel 2-phenylimidazo[2,1-b]benzothiazole compounds shown by general formula I ##STR1## and the salts thereof, a process of producing the compounds, and pharmaceutical compositions containing the compounds.The compounds of this invention act on immune response, in particular, suppress a delayed type hypersensitivity reaction, and are useful as antiallergic agents, antirheumatics, therapeutic agents for autoimmune diseases, and suppressants of rejection at tissue transplantation and skin graft.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: August 7, 1984
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Murase, Toshiyasu Mase, Hideki Arima, Kunihiro Niigata, Kenichi Tomioka, Shinichiro Kobayashi
  • Patent number: 4457872
    Abstract: A novel 2-hydroxyoxanilic acid derivative shown by the following formula ##STR1## or a salt thereof. This compound possesses an immunoregulatory action and is useful as an antiallergic agent, an antiasthmatic, an antirheumatic, a carcinostatic agent, a therapeutic agent for autoimmune disease, and a suppressant of rejection at the tissue transplantation and skin graft.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: July 3, 1984
    Assignee: Yamanouchi Pharmaceutical Co.
    Inventors: Kiyoshi Murase, Toshiyasu Mase, Hideki Arima, Kenichi Tomioka, Yoso Numasaki