Patents by Inventor Hisashi Ichikawa

Hisashi Ichikawa 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).

  • Patent number: 11933355
    Abstract: A ball joint includes a first lubricant interposed between a ball part of a ball stud and a bearing sheet. The ball joint includes a second lubricant having a higher friction coefficient than the first lubricant and enclosed inside a dust cover.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: March 19, 2024
    Assignee: SOMIC MANAGEMENT HOLDINGS INC.
    Inventor: Hisashi Ichikawa
  • Patent number: 11789013
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: October 17, 2023
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ryosuke Takahashi, Katsuhiro Kanda, Yusuke Shimizu, Hisashi Ichikawa
  • Publication number: 20220403873
    Abstract: A ball joint (10) capable of stabilizing sliding torque while suppressing cost increase is provided. The ball joint (10) includes a first lubricant (G1) interposed between a ball part (40) of a ball stud (14) and a bearing sheet (13). The ball joint (10) includes a second lubricant (G2) having a higher friction coefficient than the first lubricant (G1) and enclosed inside a dust cover (15).
    Type: Application
    Filed: October 22, 2020
    Publication date: December 22, 2022
    Inventor: Hisashi ICHIKAWA
  • Publication number: 20200249223
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Application
    Filed: April 23, 2020
    Publication date: August 6, 2020
    Inventors: Ryosuke TAKAHASHI, Katsuhiro KANDA, Yusuke SHIMIZU, Hisashi ICHIKAWA
  • Patent number: 10684276
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 16, 2020
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ryosuke Takahashi, Katsuhiro Kanda, Yusuke Shimizu, Hisashi Ichikawa
  • Patent number: 10400142
    Abstract: One aspect of the present invention resides in a hot melt adhesive including a thermoplastic polymer and a tackifier, wherein the tackifier includes an acid-modified tackifier that is modified by at least one of maleic acid and maleic anhydride, and by at least one selected from the group consisting of acrylic acid, methacrylic acid, an acrylic acid ester, and a methacrylic acid ester.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 3, 2019
    Assignee: MORESCO CORPORATION
    Inventors: Hisashi Ichikawa, Hiroshi Kurokawa, Maki Samitsu, Katsuhito Fukuda
  • Publication number: 20180106783
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 19, 2018
    Inventors: Ryosuke TAKAHASHI, Katsuhiro KANDA, Yusuke SHIMIZU, Hisashi ICHIKAWA
  • Patent number: 9880153
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 30, 2018
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Ryosuke Takahashi, Katsuhiro Kanda, Yusuke Shimizu, Hisashi Ichikawa
  • Publication number: 20170051187
    Abstract: One aspect of the present invention resides in a hot melt adhesive including a thermoplastic polymer and a tackifier, wherein the tackifier includes an acid-modified tackifier that is modified by at least one of maleic acid and maleic anhydride, and by at least one selected from the group consisting of acrylic acid, methacrylic acid, an acrylic acid ester, and a methacrylic acid ester.
    Type: Application
    Filed: January 22, 2015
    Publication date: February 23, 2017
    Applicant: MORESCO CORPORATION
    Inventors: Hisashi ICHIKAWA, Hiroshi KUROKAWA, Maki SAMITSU, Katsuhito FUKUDA
  • Publication number: 20160265584
    Abstract: A ball joint includes a ball seat for slidably holding a ball part of a ball stud. In the ball seat, a stud-side holder is housed in a housing of a socket while the stud-side holder is tilted and deformed to the ball part side by a tapered part. A first groove is formed in the stud-side holder of a holder of the ball seat. The first groove has an only shape with the curvature of the inner surface of the cross-section being a finite value, in other words, has a shape in which a shape with the curvature of the inner surface being an infinite value is not included. The first groove has a shape in which the first derivation value of the distance between the central axis of the tubular holder and the inner surface of the first groove consecutively changes.
    Type: Application
    Filed: October 6, 2014
    Publication date: September 15, 2016
    Inventors: Hisashi Ichikawa, Hiroaki Ito
  • Publication number: 20160209403
    Abstract: Application of the present invention enables quantification of fractions of candidate pharmaceutical compounds (a parent compound and its metabolites), one excreted to the basolateral (Basal/Basolateral)-side via transporters and by diffusion, one excreted to the lumen (Apical)-side, and one remained in the cells. This enables determination of the total amount of the administered candidate pharmaceutical compounds and the distribution ratio of the fractions. The kinetics of the administered candidate pharmaceutical compounds can be evaluated, thereby enabling in vitro screening of an enormous number of candidate pharmaceutical compounds for drug candidates exhibiting the efficacy.
    Type: Application
    Filed: November 26, 2014
    Publication date: July 21, 2016
    Inventors: Ryosuke TAKAHASHI, Katsuhiro KANDA, Yusuke SHIMIZU, Hisashi ICHIKAWA
  • Patent number: 8877871
    Abstract: There is provided a switching element including two electrodes and an organic bistable material sandwiched between the electrodes, which is expected to be applied to an organic memory element or the like. A switching element which includes: two electrodes; and an organic thin film containing a metal fine particle and interposed between the electrodes, and which exhibits such a current bistability that the switching element has two stable resistance values in response to a voltage applied, the switching element characterized in that the metal fine particle is dispersed in the organic thin film with a metal fine particle-dispersing agent containing a polymer having a dithiocarbamate group and having a weight average molecular weight of 500 to 5,000,000.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: November 4, 2014
    Assignees: Kyushu University, Nissan Chemical Industries, Ltd.
    Inventors: Katsuhiko Fujita, Kei Yasui, Masaaki Ozawa, Keisuke Odoi, Hisashi Ichikawa
  • Publication number: 20100289012
    Abstract: There is provided a switching element including two electrodes and an organic bistable material sandwiched between the electrodes, which is expected to be applied to an organic memory element or the like. A switching element which includes: two electrodes; and an organic thin film containing a metal fine particle and interposed between the electrodes, and which exhibits such a current bistability that the switching element has two stable resistance values in response to a voltage applied, the switching element characterized in that the metal fine particle is dispersed in the organic thin film with a metal fine particle-dispersing agent containing a polymer having a dithiocarbamate group and having a weight average molecular weight of 500 to 5,000,000.
    Type: Application
    Filed: September 1, 2008
    Publication date: November 18, 2010
    Applicants: KYUSHU UNIVERSITY, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Katsuhiko Fujita, Hisashi Ichikawa, Kei Yasui, Masaaki Ozawa, Hisashi Ichikawa, Keisuke Odoi
  • Patent number: 6078464
    Abstract: A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjacent to the at least one through hole so as to have a symmetrical relationship in a circumferential direction of the annular frame with respect to the at least one through hole and within a range of a diameter dimension of the at least one through hole in a radial direction of the annular frame.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: June 20, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Hidekazu Takeda, Shinya Fujimori, Kenmei Masuda, Atsushi Inoue, Fukuyasu Abe, Hisashi Ichikawa, Masashi Ueda, Yoshiharu Yamashita, Kazuyuki Kodama
  • Patent number: 4135413
    Abstract: A device or arrangement of parts for electrically loading a movable member so as to bias same in one direction. In this device, an elastic member is secured to a pivot provided on a base member, with its two arms being deflected and then held by first and second locking members, after which a movable member is forced down against the elastic member from above, so that a guide portion of the movable member may push one arm of the elastic member so as to keep the arm apart from the locking member which locks the arm, and then a locking portion continuous with the guide portion, of the movable member locks the arm. As a result, the movable member is elastically loaded so as to bias in one direction, while the movement of the movable member is limited by means of a control member provided on the base member.
    Type: Grant
    Filed: September 28, 1977
    Date of Patent: January 23, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Hisashi Ichikawa, Kenji Ogiro