Patents by Inventor Hiromitsu Yokohama

Hiromitsu Yokohama 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: 8691814
    Abstract: The present invention provides compounds having formula (I): wherein R1, R2, R3 and n are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof in the treatment of inflammatory or autoimmune and proliferative disorders and as inhibitors of cell adhesion molecule expression and inflammatory cytokine signal transduction generally.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 8, 2014
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Jane Daun, Heather A. Davis, Bruce DeCosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, André Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris M. Seletsky, Motohiro Soejima, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Publication number: 20110105427
    Abstract: The present invention provides compounds having formula (I): wherein R1, R2, R3 and n are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof in the treatment of inflammatory or autoimmune and proliferative disorders and as inhibitors of cell adhesion molecule expression and inflammatory cytokine signal transduction generally.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Inventors: Jane Daun, Heather A. Davis, Bruce DeCosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, André Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris M. Seletsky, Motohiro Soejima, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Patent number: 7868002
    Abstract: As discussed above, there remains a need for the development of novel therapeutic agents useful for treating inflammatory or autoimmune and proliferative diseases. The present invention provides novel compounds of general formula (I), and pharmaceutical compositions thereof, as described generally and in classes and subclasses herein, as well as methods of making and using such compounds.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 11, 2011
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Jane Daun, Heather A. Davis, Bruce DeCosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, André Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris M. Seletsky, Motohiro Soejima, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Publication number: 20090203693
    Abstract: The present invention provides a therapeutic agent for hepatic fibrosis and a method for treatment of hepatic fibrosis. 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide or an analogue thereof can prevent the fibrillation in the liver, and therefore can be used as a therapeutic agent for hepatic fibrosis or in the method for treatment of hepatic fibrosis.
    Type: Application
    Filed: June 29, 2007
    Publication date: August 13, 2009
    Applicant: Eisai R & D Management Co., Ltd.
    Inventors: Hiromitsu Yokohama, Toshiyuki Matsuoka
  • Publication number: 20080103137
    Abstract: As discussed above, there remains a need for the development of novel therapeutic agents useful for treating inflammatory or autoimmune and proliferative diseases.
    Type: Application
    Filed: September 28, 2007
    Publication date: May 1, 2008
    Inventors: Jane Daun, Heather Davis, Bruce DeCosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, Andre Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris Seletsky, Motohiro Soejima, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Patent number: 7314936
    Abstract: The present invention provides compounds having formula (I), wherein R1, R2, R3 and n are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof in the treatment of inflammatory or autoimmune and proliferative disorders and as inhibitors of cell adhesion molecule expression and inflammatory cytokine signal transduction generally
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 1, 2008
    Assignee: Eisai Co., Ltd.
    Inventors: Jane Daun, Heather A. Davis, Bruce DeCosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, André Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris M. Seletsky, Motohiro Soejima, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Publication number: 20070134720
    Abstract: The present invention provides methods for evaluating the regulation on prolyl 4-hydroxylase activity. The present invention also provides screening methods using the evaluation methods. Furthermore, the present invention provides methods of screening for compounds that are useful for treating or preventing fibrosis or rheumatoid arthritis. The present invention relates to methods for detecting regulatory activity on the synoviolin ubiquitination of prolyl 4-hydroxylase ? subunit (P4HA1). It also relates to methods of screening for compounds with regulatory effect on the ubiquitination activity of synoviolin on P4HA1 based on these methods. Compounds discovered in the screening are useful for treating and/or preventing diseases caused by abnormalities in the prolyl 4-hydroxylase activity, such as fibrosis and rheumatoid arthritis.
    Type: Application
    Filed: August 20, 2004
    Publication date: June 14, 2007
    Inventors: Toshihiro Nakajima, Tetsuya Amano, Lei Zhang, Rie Ikeda, Satoshi Yamasaki, Naoko Yagishita, Hiromitsu Yokohama, Motoji Kogushi
  • Patent number: 7074801
    Abstract: The present invention discloses compounds and compositions of formula (I): having inhibitory activity on activation of STAT6, wherein X represents quinoline, isoquinoline, quinazoline or imidazopyridine; Y represents phenyl, piperazine, pyridine, thiophene, thiazole, oxathiazole or oxathiadiazole; and variables Z, n, R1, R2, R3 and R4 are as defined in the claims.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: July 11, 2006
    Assignee: Eisai Co., Ltd.
    Inventors: Ichiro Yoshida, Naoki Yoneda, Yoshiaki Ohashi, Shuichi Suzuki, Mitsuaki Miyamoto, Futoshi Miyazaki, Hidenori Seshimo, Junichi Kamata, Yasutaka Takase, Manabu Shirato, Daiya Shimokubo, Yoshinori Sakuma, Hiromitsu Yokohama
  • Publication number: 20050124649
    Abstract: The present invention provides compounds having formula (I), wherein R1, R2, R3 and n are as described generally and in classes and subclasses herein, and additionally provides pharmaceutical compositions thereof, and methods for the use thereof in the treatment of inflammatory or autoimmune and proliferative disorders and as inhibitors of cell adhesion molecule expression and inflammatory cytokine signal transduction generally.
    Type: Application
    Filed: January 7, 2003
    Publication date: June 9, 2005
    Applicant: EISAI CO., LTD
    Inventors: Jane Daun, Heather Davis, Bruce DeAcosta, Fabian Gusovsky, Ieharu Hishinuma, Yimin Jiang, Toshihiko Kaneko, Kouichi Kikuchi, Seiichi Kobayashi, Andre Lescarbeau, Xiang-Yi Li, Kenzo Muramoto, Norihito Ohi, Marc Pesant, Boris Seletsky, Mark Spyvee, Lynda Tremblay, Ye Yao, Hiromitsu Yokohama, Yan (Janet) Zhao, Wanjun Zheng
  • Publication number: 20040092737
    Abstract: Benzopiperidine derivatives represented by formula (I), salts thereof or hydrates thereof, processes for producing the same and drugs comprising the same: 1
    Type: Application
    Filed: September 20, 2002
    Publication date: May 13, 2004
    Applicant: Eisai Co., Ltd.
    Inventors: Toshihiko Kaneko, Richard Clark, Norihito Ohi, Fumihiro Ozaki, Tetsuya Kawahara, Atsushi Kamada, Kazuo Okano, Hiromitsu Yokohama, Kenzo Muramoto, Tohru Arai, Masayoshi Ohkuro, Osamu Takenaka, Jiro Sonoda
  • Publication number: 20030170231
    Abstract: Agents for treating and preventing antiphospholipid antibody syndrome (APS) comprising, as an active ingredient, a substance inhibiting interaction between gp39 on a T cell surface, which is a receptor mediating contact-dependent helper effector function, and CD40 on an antigen-presenting cell surface.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 11, 2003
    Inventors: Toshihiko Yamauchi, Hiromitsu Yokohama, Seiichi Kobayashi, Toshio Seto
  • Patent number: 6518423
    Abstract: Benzopiperidine derivatives represented by formula (I), salts thereof or hydrates thereof, processes for producing the same and drugs comprising the same: wherein the variables are as described in the specification. These compounds are useful as drugs efficacious in the prevention and treatment of these various inflammatory diseases and immunologic diseases, such as rheumatoid arthritis, atopic dermatitis, psoriasis, asthma, and rejection reaction accompanying organ transplantation.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: February 11, 2003
    Assignee: Eisai Co., Ltd.
    Inventors: Toshihiko Kaneko, Richard Clark, Norihito Ohi, Fumihiro Ozaki, Tetsuya Kawahara, Atsushi Kamada, Kazuo Okano, Hiromitsu Yokohama, Kenzo Muramoto, Tohru Arai, Masayoshi Ohkuro, Osamu Takenaka, Jiro Sonoda
  • Patent number: 5385942
    Abstract: A quinone derivative useful in the treatment of hepatic diseases defined by the general formula: ##STR1## where X and Y may be the same or different from each other and are each a hydroxyl group, a group represented by the formula --(--OCH.sub.2 --).sub.n --OR.sup.6, wherein n is 0 or 1 and R.sup.6 is a lower alkyl group, or an acyl group.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: January 31, 1995
    Assignee: Eisai Co., Ltd.
    Inventors: Shinya Abe, Yasushi Okamoto, Katsuya Tagami, Shigeki Hibi, Junichi Nagakawa, Kazuo Hirota, Ieharu Hishinuma, Kaname Miyamoto, Takashi Yamanaka, Hiromitsu Yokohama, Tsutomu Yoshimura, Tohru Horie, Yasunori Akita, Koichi Katayama, Isao Yamatsu
  • Patent number: 5210239
    Abstract: A quinone derivative useful in the treatment of hepatic diseases defined by the general formula: ##STR1## where R1 is selected from the group consisting of alkyl, alkenly, alkynyl or heterocycle, R2 is a substituted nitrogen containing radical wherein the substituents on said nitrogen are selected from the group consisting of hydrogen, substituted or unsubstituted lower alkyl or heterocycles, and where said nitrogen may be a ring heteroatom, and R3, R4 and R5, may be the same or different and each are hydrogen, lower alkyl or lower alkoxy groups.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: May 11, 1993
    Assignee: Eisai Co., Ltd.
    Inventors: Shinya Abe, Yasushi Okamoto, Katsuya Tagami, Shigeki Hibi, Junichi Nagakawa, Kazuo Hirota, Ieharu Hishinuma, Kaname Miyamoto, Takashi Yamanaka, Hiromitsu Yokohama, Tsutomu Yoshimura, Tohru Horie, Yasunori Akita, Koichi Katayama, Isao Yamatsu