Patents by Inventor Yoshihisa Shirasaki

Yoshihisa Shirasaki 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: 9422240
    Abstract: There are provided compounds having a superior PHD2 inhibitory effect that are represented by general formula (I?): (in the above-mentioned general formula (I?), W, Y, R2, R3, R4, and Y4 are as described hereinabove), or pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 23, 2016
    Assignee: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Tetsuo Takayama, Tsuyoshi Shibata, Fumiyasu Shiozawa, Kenichi Kawabe, Yuki Shimizu, Makoto Hamada, Akira Hiratate, Masato Takahashi, Fumihito Ushiyama, Takahiro Oi, Yoshihisa Shirasaki, Daisuke Matsuda, Chie Koizumi, Sota Kato
  • Patent number: 9181229
    Abstract: Provided are novel compounds that bind to FKBP12 or pharmaceutically acceptable salts thereof, as well as new therapeutics useful in the prevention or treatment of alopecia which comprise those compounds or pharmaceutically acceptable salts thereof. Specifically, compounds represented by formula (1) [where R1 represents either the following formula (2) or (3)] or pharmaceutically acceptable salts thereof are provided.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: November 10, 2015
    Assignee: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Naoya Ono, Shoichi Kuroda, Yoshihisa Shirasaki, Tetsuo Takayama, Yoshinori Sekiguchi, Fumihito Ushiyama, Yusuke Oka
  • Publication number: 20150175541
    Abstract: There are provided compounds having a superior PHD2 inhibitory effect that are represented by general formula (I?): (in the above-mentioned general formula (I?), W, Y, R2, R3, R4, and Y4 are as described hereinabove), or pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: July 29, 2013
    Publication date: June 25, 2015
    Applicant: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Tetsuo Takayama, Tsuyoshi Shibata, Fumiyasu Shiozawa, Kenichi Kawabe, Yuki Shimizu, Makoto Hamada, Akira Hiratate, Masato Takahashi, Fumihito Ushiyama, Takahiro Oi, Yoshihisa Shirasaki, Daisuke Matsuda, Chie Koizumi, Sota Kato
  • Patent number: 9035059
    Abstract: There are provided compounds represented by the following general formula (I) or pharmaceutically acceptable salts of thereof, which have a superior monoacylglycerol acyltransferase 2 inhibitory action: wherein Ring A represents a partially saturated heteroaryl group, an aryl group or a heteroaryl group, RB represents a C4-18 alkyl group, a C3-8 cycloalkyl group, a partially saturated aryl group, an aryl group, or the following formula (II): wherein V represents the formula —CR11R12—, —CO—, —CO—O—, or —CO—NH—, W represents a single bond or a C1-3 alkylene group, and Ring B represents a C3-8 cycloalkyl group, a C3-8 cycloalkenyl group, a partially saturated heteroaryl group, a saturated heterocyclyl group, an aryl group, or a heteroaryl group, Y represents a nitrogen atom or the formula N+(RF), RF represents a C1-4 alkyl group, and m and n, which may be the same or different, each represent an integer of 0 or 1.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 19, 2015
    Assignee: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Tsuyoshi Busujima, Takahiro Oi, Hiroaki Tanaka, Yoshihisa Shirasaki, Kanako Iwakiri, Nagaaki Sato, Shigeru Tokita
  • Patent number: 8623898
    Abstract: The present invention aims to provide novel compounds of formula [I] or pharmaceutically acceptable salts thereof that are based on a glycine uptake inhibiting action and which are useful in the prevention or treatment of such diseases as schizophrenia, Alzheimer's disease, cognitive dysfunction, dementia, anxiety disorders (generalized anxiety disorder, panic disorder, obsessive-compulsory disorder, social anxiety disorder, posttraumatic stress disorder, specific phobia, acute stress disorder, etc.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: January 7, 2014
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Akito Yasuhara, Shuji Yamamoto, Hiroshi Ohta, Yoshihisa Shirasaki, Kazunari Sakagami, Masato Hayashi, Tsuyoshi Shibata, Youichi Shimazaki, Yuko Araki, Kumi Abe, Xiang-Min Sun
  • Publication number: 20140005382
    Abstract: There are provided compounds represented by the following general formula (I) or pharmaceutically acceptable salts of thereof, which have a superior monoacylglycerol acyltransferase 2 inhibitory action: wherein Ring A represents a partially saturated heteroaryl group, an aryl group or a heteroaryl group, RB represents a C4-18 alkyl group, a C3-8 cycloalkyl group, a partially saturated aryl group, an aryl group, or the following formula (II): wherein V represents the formula —CR11R12—, —CO—, —CO—O—, or —CO—NH—, W represents a single bond or a C1-3 alkylene group, and Ring B represents a C3-8 cycloalkyl group, a C3-8 cycloalkenyl group, a partially saturated heteroaryl group, a saturated heterocyclyl group, an aryl group, or a heteroaryl group, Y represents a nitrogen atom or the formula N+(RF), RF represents a C1-4 alkyl group, and m and n, which may be the same or different, each represent an integer of 0 or 1.
    Type: Application
    Filed: March 14, 2012
    Publication date: January 2, 2014
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Tsuyoshi Busujima, Takahiro Oi, Hiroaki Tanaka, Yoshihisa Shirasaki, Kanako Iwakiri, Nagaaki Sato, Shigeru Tokita
  • Publication number: 20130345419
    Abstract: Provided are novel compounds that bind to FKBP12 or pharmaceutically acceptable salts thereof, as well as new therapeutics useful in the prevention or treatment of alopecia which comprise those compounds or pharmaceutically acceptable salts thereof. Specifically, compounds represented by formula (1) [where R1 represents either the following formula (2) or (3)] or pharmaceutically acceptable salts thereof are provided.
    Type: Application
    Filed: March 15, 2012
    Publication date: December 26, 2013
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Naoya Ono, Shoichi Kuroda, Yoshihisa Shirasaki, Tetsuo Takayama, Yoshinori Sekiguchi, Fumihito Ushiyama, Yusuke Oka
  • Publication number: 20120116095
    Abstract: The present invention aims to provide novel compounds represented by formula [I] or pharmaceutically acceptable salts thereof: which are useful for prevention or treatment of diseases such as schizophrenia, Alzheimer's disease, cognitive impairment, dementia, anxiety disorders (e.g., generalized anxiety disorder, panic disorder, obsessive-compulsive disorder, social anxiety disorder, post-traumatic stress disorder, specific phobias, acute stress disorder), depression, drug dependence, convulsion, tremor, pain, or sleep disorders, based on their inhibitory effect against glycine uptake.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 10, 2012
    Applicant: TAISHO PHARMACEUTICAL C0., LTD.
    Inventors: Akito Yasuhara, Kazunari Sakagami, Hiroshi Ohta, Masato Hayashi, Yoshihisa Shirasaki, Shuji Yamamoto, Youichi Shimazaki, Yuko Araki, Kumi Abe, Xiang-Min Sun
  • Publication number: 20120010414
    Abstract: The present invention aims to provide novel compounds of formula [I] or pharmaceutically acceptable salts thereof that are based on a glycine uptake inhibiting action and which are useful in the prevention or treatment of such diseases as schizophrenia, Alzheimer's disease, cognitive dysfunction, dementia, anxiety disorders (generalized anxiety disorder, panic disorder, obsessive-compulsory disorder, social anxiety disorder, posttraumatic stress disorder, specific phobia, acute stress disorder, etc.
    Type: Application
    Filed: March 19, 2010
    Publication date: January 12, 2012
    Applicant: TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Akito Yasuhara, Shuji Yamamoto, Hiroshi Ohta, Yoshihisa Shirasaki, Kazunari Sakagami, Masato Hayashi, Tsuyoshi Shibata, Youichi Shimazaki, Yuko Araki, Kumi Abe, Xiang-Min Sun
  • Patent number: 7491705
    Abstract: The present invention provides a compound represented by the formula (I): (wherein R1 is a lower alkyl substituted by a lower alkoxy or a heterocyclic group, or a heterocyclic group; R2 is a lower alkyl optionally substituted by a phenyl; and R3 is a lower alkyl optionally substituted by a halogen, a lower alkoxy or a phenyl, or a fused polycyclic hydrocarbon group), which is well absorbed orally, exhibits durability of good blood level and has potent calpain inhibitory activity.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: February 17, 2009
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Yoshihisa Shirasaki, Hiroyuki Miyashita, Masayuki Nakamura, Jun Inoue
  • Publication number: 20070004643
    Abstract: The present invention provides a compound represented by the formula (I): (wherein R1 is a lower alkyl substituted by a lower alkoxy or a heterocyclic group, or a heterocyclic group; R2 is a lower alkyl optionally substituted by a phenyl; and R3 is a lower alkyl optionally substituted by a halogen, a lower alkoxy or a phenyl, or a fused polycyclic hydrocarbon group), which is well absorbed orally, exhibits durability of good blood level and has potent calpain inhibitory activity.
    Type: Application
    Filed: December 8, 2004
    Publication date: January 4, 2007
    Inventors: Yoshihisa Shirasaki, Hiroyuki Miyashita, Masayuki Nakamura, Jun Inoue