Patents by Inventor Yoshihiro Sawai

Yoshihiro Sawai 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: 7820197
    Abstract: A bisphosphonic acid derivative-containing percutaneous preparation of an excellent percutaneous permeability, comprising a bisphosphonic acid derivative such as incadronic acid, minodronic acid, etc., or pharmaceutically acceptable salts thereof, a solubilizing agent for the derivative or pharmaceutically acceptable salts thereof, and an amphiphilic solubilizing auxiliary agent, which may optionally contain a suspension-type base such as a polyvalent alcohol, a higher fatty acid ester, a liquid hydrocarbon or a vegetable oil, etc. This preparation has an excellent percutaneous permeability, reduces burdens on the patient, does not deteriorate the patient's compliance even in the administration over a prolonged period of time and can achieve the therapeutic effects in a short period of time.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: October 26, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Yasuhiro Tsuji, Kei Tamura, Yuuhiro Yamazaki, Yoshihiro Sawai
  • Publication number: 20100055159
    Abstract: A bisphosphonic acid derivative-containing percutaneous preparation of an excellent percutaneous permeability, comprising a bisphosphonic acid derivative such as incadronic acid, minodronic acid, etc., or pharmaceutically acceptable salts thereof, a solubilizing agent for the derivative or pharmaceutically acceptable salts thereof, and an amphiphilic solubilizing auxiliary agent, which may optionally contain a suspension-type base such as a polyvalent alcohol, a higher fatty acid ester, a liquid hydrocarbon or a vegetable oil, etc. This preparation has an excellent percutaneous permeability, reduces burdens on the patient, does not deteriorate the patient's compliance even in the administration over a prolonged period of time and can achieve the therapeutic effects in a short period of time.
    Type: Application
    Filed: November 4, 2009
    Publication date: March 4, 2010
    Inventors: Yasuhiro TSUJI, Kei Tamura, Yuuhiro Yamazaki, Yoshihiro Sawai
  • Publication number: 20080317828
    Abstract: There is provided a film-type edible oral mucosal patch comprising a main ingredient, a fentanyl compound, contained in a base comprising (A) a semi-synthetic water-insoluble polymer compound, (B) a semi-synthetic water-soluble polymer compound, (C) a synthetic water-soluble polymer compound, (D) a water-soluble polyhydric alcohol and (E) a pH-adjusting agent. The oral mucosal patch consists of substances accepted as the food additives or pharmaceutical additives approved for oral administration, and is industrially efficiently produced and easily and safely used.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 25, 2008
    Inventors: Kazuyoshi Furusawa, Kazuyoshi Sudeji, Megumi Kakichi, Yasunori Morimoto, Toshinobu Seki, Yoshihiro Sawai
  • Publication number: 20050147653
    Abstract: A rapidly soluble film-shaped preparation containing a drug and an edible polymer, wherein the breaking strength of a film thereof is from 200 to 3,000 g/?7 mm, the tensile strength of the film is from 200 to 3,000 g/15 mm, the water disintegration time Y [sec] is within 300 seconds (Y?300), and when the reciprocal [mg/mm2] of the specific surface area [mm2/mg] of the film is taken as X (X?0), the relationship of water disintegration time Y [sec] ?7500X2 is satisfied, and the rapidly soluble film-shaped preparation comprising one drug-containing layer, or having a support layer on one side or both sides of the drug-containing layer, wherein the edible polymer is hydroxypropyl cellulose and/or hydroxypropylmethyl cellulose, the compounding ratio of the drug is from 0.01 to 40% by weight based on the whole preparation, and that of the edible polymer is from 40 to 99.99% by weight based on the whole preparation.
    Type: Application
    Filed: May 14, 2003
    Publication date: July 7, 2005
    Inventors: Kayo Yasuda, Tadatoshi Okubo, Yoshihiro Sawai
  • Patent number: 6906043
    Abstract: Disclosed is a rapidly soluble film preparation mainly comprising a drug, an edible polymer and a saccharide, a manufacturing method of which is simple, and having high elution rate.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: June 14, 2005
    Assignee: Kyuku Pharmaceutical Co., Ltd.
    Inventors: Tsutomu Awamura, Kazuyoshi Furusawa, Yoshihiro Sawai
  • Publication number: 20050106186
    Abstract: A bisphosphonic acid derivative-containing percutaneous preparation of an excellent percutaneous permeability, comprising a bisphosphonic acid derivative such as incadronic acid, minodronic acid, etc., or pharmaceutically acceptable salts thereof, a solubilizing agent for the derivative or pharmaceutically acceptable salts thereof, and an amphiphilic solubilizing auxiliary agent, which may optionally contain a suspension-type base such as a polyvalent alcohol, a higher fatty acid ester, a liquid hydrocarbon or a vegetable oil, etc. This preparation has an excellent percutaneous permeability, reduces burdens on the patient, does not deteriorate the patient's compliance even in the administration over a prolonged period of time and can achieve the therapeutic effects in a short period of time.
    Type: Application
    Filed: February 13, 2003
    Publication date: May 19, 2005
    Inventors: Yasuhiro Tsuji, Kei Tamura, Yuuhiro Yamazaki, Yoshihiro Sawai
  • Publication number: 20040180080
    Abstract: There is provided a film-type edible oral mucosal patch comprising a main ingredient, a fentanyl compound, contained in a base comprising (A) a semi-synthetic water-insoluble polymer compound, (B) a semi-synthetic water-soluble polymer compound, (C) a synthetic water-soluble polymer compound, (D) a water-soluble polyhydric alcohol and (E) a pH-adjusting agent. The oral mucosal patch consists of substances accepted as the food additives or pharmaceutical additives approved for oral administration, and is industrially efficiently produced and easily and safely used.
    Type: Application
    Filed: September 24, 2003
    Publication date: September 16, 2004
    Inventors: Kazuyoshi Furusawa, Kazuyoshi Sudeji, Megumi Kakichi, Yasunori Morimoto, Toshinobu Seki, Yoshihiro Sawai
  • Publication number: 20040126330
    Abstract: A film preparation of a three-layer structure which comprises: a nicotine-containing layer comprising nicotine and an edible water-soluble polymer and having a 180-degree peel strength in application to a Bakelite plate of 1 g to 30 g/20 mm and a solubility in water of 3 minutes to 10 minutes,
    Type: Application
    Filed: October 22, 2003
    Publication date: July 1, 2004
    Inventors: Tsutomu Awamura, Yoshihiro Sawai
  • Publication number: 20030099690
    Abstract: Disclosed is a rapidly soluble film preparation mainly comprising a drug, an edible polymer and a saccharide, a manufacturing method of which is simple, and having high elution rate.
    Type: Application
    Filed: April 6, 2000
    Publication date: May 29, 2003
    Inventors: TSUTOMU AWAMURA, KAZUYOSHI FURUSAWA, YOSHIHIRO SAWAI
  • Patent number: 4765983
    Abstract: Adhesive medical tapes for oral mucosa comprising a support layer composed of an intestine-soluble polymer and a medicament-containing layer composed of a water-soluble polymer containing at least one kind of a steroid or non-steroid antiphlogistic and analgesic medicament.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: August 23, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Takayanagi, Yoshihiro Sawai