Patents by Inventor Tetsushi Saino

Tetsushi Saino 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: 7247640
    Abstract: A medicament for prophylaxis or treatment of bone marrow suppression, for treatment of infectious diseases and for increasing the number of leukocytes, which comprise as an active ingredient a sulphostin-related compound represented by general formula (I): wherein n is an integer of 0 to 3, or a pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: July 24, 2007
    Assignees: Nippon Kayaku Kabushiki Kaisha, Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
    Inventors: Takumi Yamashita, Chihiro Nishimura, Tetsushi Saino, Yasuhiko Muraoka, Tomio Takeuchi
  • Publication number: 20040038942
    Abstract: A medicament for prophylaxis or treatment of bone marrow suppression, for treatment of infectious diseases and for increasing the number of leukocytes, which comprise as an active ingredient a sulphostin-related compound represented by general formula (I): 1
    Type: Application
    Filed: June 3, 2003
    Publication date: February 26, 2004
    Inventors: Takumi Yamashita, Chihiro Nishimura, Tetsushi Saino, Yasuhiko Muraoka, Tomio Takeuchi
  • Patent number: 6458848
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: October 1, 2002
    Assignees: Nippon Kayaku Kabushiki Kaisha, Orion-yhtyma Oy
    Inventors: Junpei Itoh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Publication number: 20020107231
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Application
    Filed: January 10, 2002
    Publication date: August 8, 2002
    Inventors: Junpei Itoh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Patent number: 6387958
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: May 14, 2002
    Assignees: Nippon Kayaku Kabushiki Kaisha, Orion-yhtyma Oy
    Inventors: Junpei Itöh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Patent number: 6355688
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 12, 2002
    Inventors: Junpei Itoh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Patent number: 6184253
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: February 6, 2001
    Assignees: Nippon Kayaku Kabushiki Kaisha, Orion-yhtyma Oy
    Inventors: Junpei Itoh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Patent number: 5886049
    Abstract: Disclosed is use of nonsteroidal anti-estrogen compounds such as toremifene citrate as active ingredient for treating autoimmune diseases.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: March 23, 1999
    Assignees: Nippon Kayaku Kabushiki Kaisha, Orion-yhtyma Oy
    Inventors: Junpei Itoh, Osamu Miyazaki, Hisao Ekimoto, Michinori Koyama, Tetsushi Saino, Lauri Kangas, Anni Warri, Christer Granberg
  • Patent number: 5162581
    Abstract: The invention provides crystalline deoxyspergualin trihydrochloride, a process for the preparation of the same and a suppository composition containing the same. The compound and composition has antitumor and immunosuppressive activity.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: November 10, 1992
    Assignees: Takaru Shuzo Co., Ltd., Nippon Kayaku Kabushiki Kaisha
    Inventors: Katsushige Ikai, Makoto Moriguchi, Yoshihisa Umeda, Ikunoshin Kato, Tetsushi Saino, Hironobu Hiraga, Takaaki Ohkuma
  • Patent number: 5137917
    Abstract: Novel spergualin-related compounds represented by the general formula (I): ##STR1## wherein X represents --(CH.sub.2).sub.1-5 -- or a phenylene group which may be substituted; m represents 0, 1 or 2; n represents 1 or 2; and R.sub.1 represents --(CH.sub.2).sub.1-3 --COOH, and pharmacologically acceptable salts thereof, possess an immunopotentiating activity, and are expected to be useful as immunopotentiators applicable to warm blooded animals.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: August 11, 1992
    Assignees: Nippon Kayaku Kabushiki Kaisha, Takara Shuzo Co., Ltd.
    Inventors: Tsugio Tomiyoshi, Takako Mae, Tetsushi Saino, Yoshihisa Umeda
  • Patent number: 5061787
    Abstract: The present invention relates to novel spergualin-related compounds represented by the general formula [I]: ##STR1## wherein X is --(CH.sub.2).sub.1.about.5 or ##STR2## Y is a hydrogen atom or a residue obtained by removing a hydroxyl group from the carboxyl group of an amino acid or a peptide; m is 0, 1 or 2 and n is 1 or 2, with the proviso that Y is not a hydrogen atom when n is 2 and m is 0.This compounds are stable and exhibit a high immunosuppressive activity.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: October 29, 1991
    Assignees: Nippon Kayaku Kabushiki Kaisha, Takara Shuzo Kabushiki Kaisha
    Inventors: Tetsushi Saino, Tsugio Tomiyoshi, Kyuichi Nemoto, Yoshihisa Umeda
  • Patent number: 5002756
    Abstract: An agent for relieving radiogenic or drug-induced side effects, characterized by comprising a spergualin derivative of the following formula (I):NH.sub.2 --C(.dbd.NH)--NH--R.sub.1 --R.sub.2 --CONH--R.sub.3 --CONH--(CH.sub.2).sub.4 --NH--(CH.sub.2).sub.3 --NH--Xwherein R.sub.1 represents --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.6 ##STR1## R.sub.2 represents --(CH.sub.2).sub.2 -- or --CH.dbd.CH--, R.sub.3 represents --(CH(OH)--CH(OMe)--, --CH.sub.2 -- or --(CH.sub.2).sub.m --CH(OH)--(CH.sub.2).sub.n -- (m represent an integer of 0,1 or 2 and n represents an integer of 1 or 2)X represents a hydrogen atom or a group formed by removing a hydroxyl group from a carboxyl group of an amino acid,or a pharmacologically acceptable salt thereof as an active ingredient.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: March 26, 1991
    Assignee: Zaidanhojin Biseibutsu Kagakukenkyukai
    Inventors: Kyuichi Nemoto, Tetsushi Saino, Tomio Takeuchi, Teruya Nakamura
  • Patent number: 4981595
    Abstract: Process for purifying spergualin-related compounds and their synthetic intermediates, by subjecting a solution containing such spergualin-related compounds or intermediates to electrodialysis and/or reverse osmosis.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: January 1, 1991
    Assignees: Takara Shuzo Co., Ltd., Nippon Kayaku Kabushiki Kaisha
    Inventors: Yoshihisa Umeda, Makoto Moriguchi, Keiko Miyazaki, Toru Kurome, Ikunoshin Kato, Tetsushi Saino
  • Patent number: 4956504
    Abstract: The present invention relates to novel Spergualin-related compounds represented by the general formula [I] ##STR1## (wherein X is ##STR2## R is --H or --CH.sub.2 OH; R.sub.1 is --H, ##STR3## R.sub.2 is a residue obtained by removing, from an amino acid or peptide, the hydroxyl group of the carboxyl group and, when R.sub.1 is a group other than --H, R.sub.2 is same as R.sub.1), or a pharmacologically acceptable salt thereof. Said compounds or salts thereof have an immuno-modulating action.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: September 11, 1990
    Assignee: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
    Inventors: Tomio Takeuchi, Tetsushi Saino, Masao Yoshida, Katsutoshi Takahashi, Teruya Nakamura, Hamao Umezawa, deceased
  • Patent number: 4786754
    Abstract: A stable, non-hygroscopic, crystalline .gamma.-form of bestatin is prepared from the .alpha.- or .beta.-form of bestatin by heating at a temperature of from about 148.degree. C. to the melting point of bestatin, or by suspending or kneading in certan specified solvents.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: November 22, 1988
    Assignee: Zaidan Hojin Biseibutsu Kagaku Kenkyu Hai
    Inventors: Takashi Terada, Tetsushi Saino, Terukatsu Sakurai, Hamao Umezawa, Masaaki Ishizuka
  • Patent number: 4769490
    Abstract: A stable, non-hygroscopic, crystalline .gamma.-form of bestatin is prepared from the .alpha.- or .beta.-form of bestatin by heating at a temperature of from about 148.degree. C. to the melting point of bestatin, or by suspending or kneading in certain specified solvents.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: September 6, 1988
    Assignee: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
    Inventors: Takashi Terada, Tetsushi Saino, Terukatsu Sakurai, Hamao Umezawa, Masaaki Ishizuka
  • Patent number: 4628111
    Abstract: The present invention relates to new easily filtrable, non-hygroscopic N-benzyloxycarbonyl-L-threonine amide hemihydrate.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: December 9, 1986
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Akihiro Mashiba, Kazuteru Hagita, Yoshinobu Miyazawa, Tetsushi Saino, Yasuhisa Tashiro
  • Patent number: 4525465
    Abstract: A biospecific adsorbent comprising pyroglutamyl-lysyl-leucyl-argininal combined with a water-insoluble support is provided. This biospecific adsorbent is useful as an adsorbent for use in affinity chromatography and can be utilized for the purification of proteases such as urokinase.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: June 25, 1985
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Tetsuya Someno, Kazuo Kato, Tetsushi Saino, Shinichi Ishii, Tomio Takeuchi, Hamao Umezawa
  • Patent number: 4453003
    Abstract: A process for producing threo-3-amino-2-hydroxybutanoylaminoacetic acids comprises the steps of allowing to react a starting compound represented by the general formula: ##STR1## wherein R.sub.1 represents a naphthyl or a group of the formula: ##STR2## in which R.sub.6 and R.sub.7 represent individually hydrogen, halogen, amino or a protected amino, hydroxy or a protected hydroxy, a lower alkoxy or a lower alkyl and R.sub.2 represents a protected amino, with a starting compound represented by the general formula: ##STR3## wherein R.sub.3 represents hydrogen or an ester residue, to obtain threo-3-protected amino-2-hydroxy-4-oxobutanoic acid or its ester represented by the general formula: ##STR4## wherein R.sub.1, R.sub.2 and R.sub.3 have the same meanings as above, and then reducing the same into threo-3-protected amino-2-hydroxybutanoic acid or its ester represented by the general formula: ##STR5## wherein R.sub.1, R.sub.2 and R.sub.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: June 5, 1984
    Inventors: Hamao Umezawa, Takaaki Aoyagi, Tadashi Shirai, Rinzo Nishizawa, Masao Suzuki, Tetsushi Saino
  • Patent number: 4401594
    Abstract: L-Argininal derivatives of the general formula: ##STR1## are disclosed. A method of manufacturing any such derivative is also disclosed. The L-argininal derivative of this invention has a strong inhibitory activity on proteases, such as serine and thiol proteases, and is expected to provide useful medicines, including those which are effective for diseases caused by abnormal elevation of protease activity.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: August 30, 1983
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Hamao Umezawa, Tomio Takeuchi, Takaaki Aoyagi, Shinichi Ishii, Tetsushi Saino, Tetsuya Someno