Patents by Inventor Kenji Ishigaki
Kenji Ishigaki 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).
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Patent number: 11364207Abstract: A patch comprising: a backing layer; and an adhesive layer, wherein the adhesive layer contains a mixture of a pharmaceutically acceptable acid addition salt of ropinirole and potassium hydrogen carbonate, and the mixture contains at least one selected from the group consisting of ropinirole and pharmaceutically acceptable acid addition salts thereof and potassium hydrogen carbonate.Type: GrantFiled: February 19, 2018Date of Patent: June 21, 2022Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Hideaki Ohashi, Takito Shima, Kenji Ishigaki, Yasunari Michinaka
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Patent number: 10898448Abstract: A patch comprises a backing layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of butorphanol and pharmaceutically acceptable salts thereof, and contains an adhesive base and an antioxidant containing a sulfur atom in its molecule.Type: GrantFiled: April 19, 2018Date of Patent: January 26, 2021Assignee: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Takito Shima, Toshiyuki Matsudo, Kenji Ishigaki
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Publication number: 20200121611Abstract: A patch comprising: a backing layer; and an adhesive layer, wherein the adhesive layer contains a mixture of a pharmaceutically acceptable acid addition salt of ropinirole and potassium hydrogen carbonate, and the mixture contains at least one selected from the group consisting of ropinirole and pharmaceutically acceptable acid addition salts thereof and potassium hydrogen carbonate.Type: ApplicationFiled: February 19, 2018Publication date: April 23, 2020Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Hideaki OHASHI, Takito SHIMA, Kenji ISHIGAKI, Yasunari MICHINAKA
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Publication number: 20200054575Abstract: A patch comprises a backing layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of butorphanol and pharmaceutically acceptable salts thereof, and contains an adhesive base and an antioxidant containing a sulfur atom in its molecule.Type: ApplicationFiled: April 19, 2018Publication date: February 20, 2020Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Takito SHIMA, Toshiyuki MATSUDO, Kenji ISHIGAKI
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Patent number: 8871249Abstract: Provided is a medicated patch containing a medicinal agent, an adhesive base material and a tackifier, where the medicinal agent is varenicline or a pharmaceutically acceptable salt thereof, the adhesive base material is a rubbery adhesive base material and the tackifier is a rosin-based tackifier selected from the group consisting of rosin, rosin derivatives and hydrogenated products of the foregoing, or a non-rosin-based tackifier selected from the group consisting of aliphatic hydrocarbon resins and alicyclic hydrocarbon resins, and when a non-rosin-based tackifier is added as the tackifier, a solubilizer for the medicinal agent is further added, the solubilizer containing an alcohol-based solubilizer having at least a solubility parameter of 20-35.Type: GrantFiled: February 9, 2009Date of Patent: October 28, 2014Assignee: Hisamitso Pharmaceutical Co., Inc.Inventors: Naoki Yamamoto, Kumi Morimoto, Akio Takeuchi, Kenji Ishigaki
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Patent number: 8580281Abstract: Provided is a medicated patch containing a medicinal agent and an adhesive base material and having an acid value of no greater than 28, where the medicinal agent is varenicline or a pharmaceutically acceptable salt of varenicline.Type: GrantFiled: February 9, 2009Date of Patent: November 12, 2013Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Kumi Morimoto, Akio Takeuchi, Takashi Yasukochi, Kaori Yamaguchi, Kenji Ishigaki
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Publication number: 20110008398Abstract: Provided is a medicated patch containing a medicinal agent and an adhesive base material and having an acid value of no greater than 28, where the medicinal agent is varenicline or a pharmaceutically acceptable salt of varenicline.Type: ApplicationFiled: February 9, 2009Publication date: January 13, 2011Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Kumi Morimoto, Akio Takeuchi, Takashi Yasukochi, Kaori Yamaguchi, Kenji Ishigaki
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Publication number: 20110002976Abstract: Provided is a medicated patch containing a medicinal agent, an adhesive base material and a tackifier, where the medicinal agent is varenicline or a pharmaceutically acceptable salt thereof, the adhesive base material is a rubbery adhesive base material and the tackifier is a rosin-based tackifier selected from the group consisting of rosin, rosin derivatives and hydrogenated products of the foregoing, or a non-rosin-based tackifier selected from the group consisting of aliphatic hydrocarbon resins and alicyclic hydrocarbon resins, and when a non-rosin-based tackifier is added as the tackifier, a solubilizer for the medicinal agent is further added, the solubilizer containing an alcohol-based solubilizer having at least a solubility parameter of 20-35.Type: ApplicationFiled: February 9, 2009Publication date: January 6, 2011Applicant: HISAMITSU PHARMACEUTICAL CO., INC.Inventors: Naoki Yamamoto, Kumi Morimoto, Akio Takeuchi, Kenji Ishigaki
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Patent number: 6428804Abstract: This invention relates to an intra-articular preparation for the treatment of arthropathy, which comprises microcapsules of (a) a high-molecular substance, which has biodegradability and biocompatibility, and (b) a drug. When applied directly to a joint area, this preparation can achieve a high drug concentration at the target area, can inhibit occurrence of general side effect, and can maintain drug efficacy over a long term. The preparation can therefore alleviate the burden on the patient.Type: GrantFiled: November 7, 2000Date of Patent: August 6, 2002Assignee: SSP Co., Ltd.Inventors: Makoto Suzuki, Kenji Ishigaki, Minoru Okada, Kenji Ono, Shuichi Kasai, Katsumi Imamori
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Patent number: 6375988Abstract: This invention relates to a drug composition with a controlled drug release rate. The drug composition comprises: a matrix formed of the following ingredients (a) and (b): (a) a biodegradable, biocompatible high-molecular substance and/or polyvalent metal ions or polyvalent metal ion source, and (b) hyaluronic acid or a salt thereof; and a drug incorporated as an ingredient (c) in said matrix. The drug composition has biodegradability and biocompatibility, permits easy control of a release rate of the drug, and can persistently exhibit its pharmacological effect over a long time.Type: GrantFiled: October 14, 1998Date of Patent: April 23, 2002Assignee: SSP Co., Ltd.Inventors: Makoto Suzuki, Kenji Ishigaki, Minoru Okada, Kenji Ono, Shuichi Kasai, Katsumi Imamori
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Patent number: 6258411Abstract: An industrial material such as metal, ceramics or plastics whose surface has a film passivated by fluoridation and a process of manufacturing the above industrial material. The industrial material comprises a substrate, a nickel alloy film formed on the substrate and containing nickel, semimetal and/or other metal whose fluoride becomes a volatile compound, and a fluorine passivated film formed at least on a surface of the nickel alloy film in such a manner that the fluorine passivated film contains nickel and does not contain said other metal or the semimetal, and satisfies stoichiometric ratio. The process of manufacturing an industrial material comprises the steps of performing grounding treatment of a surface of a substrate, forming a nickel alloy film, on the surface of the substrate, containing nickel, semimetal and/or other metal, and forming a fluorine passivated film on the nickel alloy film.Type: GrantFiled: April 27, 1999Date of Patent: July 10, 2001Assignees: Mitsubisi Aluminum Company, Ltd., Hashimoto Chemical CorporationInventors: Tadahiro Ohmi, Kazuo Chiba, Yutaka Mikasa, Kenji Ishigaki, Nobuhiro Miki, Matagoro Maeno, Hirohisa Kikuyama
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Patent number: 6207184Abstract: A hydrophilic adhesive mass contains 0.05 to 10 wt. % of a copolymer of an aminoalkyl (meth)acrylate and an alkyl (meth)acrylate. This hydrophilic adhesive mass is excellent in adhesiveness, and especially when combined with a pharmacologically active ingredient, is suitable for use in providing hydrophilic plasters.Type: GrantFiled: June 11, 1999Date of Patent: March 27, 2001Assignee: SSP Co., Ltd.Inventors: Yasuo Ikeda, Hirohisa Okuyama, Kenji Ishigaki, Shuichi Kasai, Katsumi Imamori
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Patent number: 6197326Abstract: This invention relates to an intra-articular preparation for the treatment of arthropathy, which comprises microcapsules of (a) a high-molecular substance, which has biodegradability and biocompatibility, and (b) a drug. When applied directly to a joint area, this preparation can achieve a high drug concentration at the target area, can inhibit occurrence of general side effect, and can maintain drug efficacy over a long term. The preparation can therefore alleviate the burden on the patient.Type: GrantFiled: October 14, 1998Date of Patent: March 6, 2001Assignee: SSP Co., Ltd.Inventors: Makoto Suzuki, Kenji Ishigaki, Minoru Okada, Kenji Ono, Shuichi Kasai, Katsumi Imamori