Patents by Inventor Masahiro Ishizuka

Masahiro Ishizuka 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).

  • Publication number: 20240141251
    Abstract: A method of manufacturing a non-aqueous secondary battery includes the steps of preparing a case main body, preparing a lid, applying a lubricant to a contact location, and assembling a lid to an open end of the case main body. In the step of preparing a lid, a lid to be fitted to the open end of the case main body is prepared. In the step of applying a lubricant, the lubricant is applied to at least a portion of the contact location at which the case main body and the lid are in contact with each other. In the step of assembling the lid to the open end, the lid is assembled to the open end with the lubricant having been applied to the contact location. The lubricant may be a solvent used in a non-aqueous electrolyte solution for non-aqueous secondary batteries.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masahiro ISHIZUKA
  • Patent number: 11905487
    Abstract: A method of manufacturing a non-aqueous secondary battery includes the steps of preparing a case main body, preparing a lid, applying a lubricant to a contact location, and assembling a lid to an open end of the case main body. In the step of preparing a lid, a lid to be fitted to the open end of the case main body is prepared. In the step of applying a lubricant, the lubricant is applied to at least a portion of the contact location at which the case main body and the lid are in contact with each other. In the step of assembling the lid to the open end, the lid is assembled to the open end with the lubricant having been applied to the contact location. The lubricant may be a solvent used in a non-aqueous electrolyte solution for non-aqueous secondary batteries.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: February 20, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masahiro Ishizuka
  • Publication number: 20220370395
    Abstract: The object of the present invention is to potentiate the photodynamic effect in ALA-PDT and ALA-PDD. The present invention provides a pharmaceutical related to a combination of ALAs and a dynamin inhibitor.
    Type: Application
    Filed: July 1, 2022
    Publication date: November 24, 2022
    Inventors: Masahiro Ishizuka, Takuya ISHII, Motowo NAKAJIMA, Yuya KITAJIMA
  • Patent number: 10675242
    Abstract: The object of the invention is to elevate the stability of an aqueous formulation comprising ALAs and an iron compound. The present invention provides an aqueous formulation comprising ALAs and an iron compound, characterized in that it further comprises 0.2-30% by weight of salts, said salts are sodium salts or potassium salts, and the pH of said aqueous formulation is 2-8.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 9, 2020
    Assignee: SBI PHARMACEUTICALS, CO., LTD.
    Inventors: Mika Morishita, Urara Ota, Masahiro Ishizuka
  • Publication number: 20200075904
    Abstract: A method of manufacturing a non-aqueous secondary battery includes the steps of preparing a case main body, preparing a lid, applying a lubricant to a contact location, and assembling a lid to an open end of the case main body. In the step of preparing a lid, a lid to be fitted to the open end of the case main body is prepared. In the step of applying a lubricant, the lubricant is applied to at least a portion of the contact location at which the case main body and the lid are in contact with each other. In the step of assembling the lid to the open end, the lid is assembled to the open end with the lubricant having been applied to the contact location. The lubricant may be a solvent used in a non-aqueous electrolyte solution for non-aqueous secondary batteries.
    Type: Application
    Filed: August 19, 2019
    Publication date: March 5, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masahiro ISHIZUKA
  • Publication number: 20200030275
    Abstract: The object of the present invention is to potentiate the photodynamic effect in ALA-PDT and ALA-PDD. The present invention provides a pharmaceutical related to a combination of ALAs and a dynamin inhibitor.
    Type: Application
    Filed: April 12, 2018
    Publication date: January 30, 2020
    Inventors: Masahiro ISHIZUKA, Takuya ISHII, Motowo NAKAJIMA, Yuya KITAJIMA
  • Publication number: 20190201336
    Abstract: The object of the invention is to elevate the stability of an aqueous formulation comprising ALAs and an iron compound. The present invention provides an aqueous formulation comprising ALAs and an iron compound, characterized in that it further comprises 0.2-30% by weight of salts, said salts are sodium salts or potassium salts, and the pH of said aqueous formulation is 2-8.
    Type: Application
    Filed: August 23, 2017
    Publication date: July 4, 2019
    Inventors: Mika Morishita, Urara Ota, Masahiro Ishizuka
  • Patent number: 9707196
    Abstract: A method for treating side effects of anticancer agent includes administering to a subject in need thereof a prophylactic and/or therapeutic agent containing a therapeutically effective amount of a compound shown by the following Formula (I): R1—NHCH2COCH2CH2COOR2??(I) wherein R1 represents a hydrogen atom or an acyl group, and R2 represents a hydrogen atom, a linear or branched alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group, or a salt thereof.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: July 18, 2017
    Assignees: SBI Pharmaceuticals Co., Ltd., National University Corporation Kochi University
    Inventors: Tohru Tanaka, Kyoko Tsuchiya, Masahiro Ishizuka, Motowo Nakajima, Hitoshi Nakagawa, Taro Shuin, Keiji Inoue, Hideo Fukuhara, Masayuki Tsuda, Mutsuo Furihata
  • Patent number: 9603928
    Abstract: The object of the present invention is to elucidate the resistance mechanism in infections that show resistance to ALA-PDT that uses a single ALA, and to provide a novel treatment method against these infections. The present invention provides a pharmaceutical composition for promoting protoporphyrin IX production in ALA-PDT for treating infection, characterized in that it comprises a substance that promotes the conversion from coproporphyrinogen III to protoporphyrin IX.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 28, 2017
    Assignees: SBI Pharmaceuticals Co., Ltd., Osaka City University
    Inventors: Masahiro Ishizuka, Urara Oto, Atsuko Kamiya, Kiwamu Takahashi, Tohru Tanaka, Toshiyuki Ozawa, Kuniyuki Morimoto, Keitaro Watanabe
  • Patent number: 9517267
    Abstract: The objects of the present invention are to inhibit photobleaching of porphyrins as well as to provide a superior photodynamic diagnostic agent and a photodynamic diagnostic method employing the photobleaching inhibitor for porphyrins. The present invention provides a photodynamic diagnostic agent containing a precursor of porphyrins and a gallic acid. The present invention also provides a photobleaching inhibitor for porphyrins containing a gallic acid.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: December 13, 2016
    Assignees: SBI Pharmaceuticals Co., Ltd., Tokyo Institute of Technology
    Inventors: Masahiro Ishizuka, Tohru Tanaka, Shun-ichiro Ogura, Takuya Ishii
  • Patent number: 9488664
    Abstract: It is to provide a tumor diagnostic agent and a tumor determination method enabling not only determination of the presence or absence of a tumor in a subject, but also determination of whether the tumor is a malignant tumor or a benign tumor, which can be used simply at low cost with reduced side effects and burden. 5-aminolevulinic acid (ALA) or its derivative, or a salt thereof is orally administered at a dose of 5 to 7 mg in terms of ALA per kg of body weight, and a urine sample 4 to 12 hours after the administration is collected. Porphyrins and creatinine in the urine sample are quantitated, and based on the value (nmol/gCre) obtained by dividing the amount of porphyrins by the amount of creatinine, a distinction among an individual without a tumor, an individual with a benign tumor, and an individual with a malignant tumor is determined. The presence or absence of a malignant tumor in a subject can be clearly determined by administering 1 to 3 mg of ALAs in terms of ALA per kg of body weight.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: November 8, 2016
    Assignee: SBI Pharmaceuticals Co., Ltd.
    Inventors: Tohru Tanaka, Kiwamu Takahashi, Motowo Nakajima, Fuminori Abe, Masahiro Ishizuka, Urara Ota
  • Publication number: 20160136274
    Abstract: The object of the present invention is to elucidate the resistance mechanism in infections that show resistance to ALA-PDT that uses a single ALA, and to provide a novel treatment method against these infections. The present invention provides a pharmaceutical composition for promoting protoporphyrin IX production in ALA-PDT for treating infection, characterized in that it comprises a substance that promotes the conversion from coproporphyrinogen III to protoporphyrin IX.
    Type: Application
    Filed: June 13, 2014
    Publication date: May 19, 2016
    Inventors: Masahiro Ishizuka, Urara Oto, Atsuko Kamiya, Kiwamu Takahashi, Tohru Tanaka, Toshiyuki Ozawa, Kuniyuki Morimoto, Keitaro Watanabe
  • Patent number: 9340490
    Abstract: According to the present invention, a tumor diagnostic agent which carries out early stage detection, monitoring of therapeutic effect and prognostic diagnosis of all tumors The tumor diagnostic agent of the present invention is a tumor diagnostic agent comprising ?-aminolevulinic acid represented by formula (I), a derivative thereof and a salt thereof: R2R1NCH2COCH2CH2COR3??(I) wherein R1 and R2 each independently represents hydrogen, alkyl, acyl, alkoxycarbonyl, aryl or aralkyl; and R3 represents hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, aryloxy, aralkyloxy or amino, which is used for diagnoses by measuring porphyrins in a sample collected from the inside or outside of the body after its administration.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: May 17, 2016
    Assignee: SBI PHARMACEUTICALS CO., LTD.
    Inventors: Ichiro Okura, Toshiaki Kamachi, Shunichiro Ogura, Masahiro Ishizuka, Tohru Tanaka
  • Publication number: 20150297720
    Abstract: The objects of the present invention are to inhibit photobleaching of porphyrins as well as to provide a superior photodynamic diagnostic agent and a photodynamic diagnostic method employing the photobleaching inhibitor for porphyrins. The present invention provides a photodynamic diagnostic agent containing a precursor of porphyrins and a gallic acid. The present invention also provides a photobleaching inhibitor for porphyrins containing a gallic acid.
    Type: Application
    Filed: January 22, 2013
    Publication date: October 22, 2015
    Inventors: Masahiro Ishizuka, Tohru Tanaka, Shun-Ichiro Ogura, Takuya Ishii
  • Patent number: 9061949
    Abstract: A metal component absorption enhancer which enhances the absorption of at least one metal component selected from the elements belonging to groups 2 to 12 in the third to fourth periods when a plant grows. The metal component absorption enhancer contains 5-aminolevulinic acid or a derivative thereof represented by the following general formula (1), or a salt thereof as an active ingredient: R2R1NCH2COCH2CH2COR3??(1) wherein R1 and R2 each independently represents a hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group, an aryl group, or an aralkyl group; R3 represents a hydroxyl group, an alkoxy group, an acyloxy group, an alkoxycarbonyloxy group, an aryloxy group, an aralkyloxy group, or an amino group, and is used for performing a treatment with 0.001 to 20 ppm of the 5-aminolevulinic acid, the derivative thereof, or the salt thereof per each time.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: June 23, 2015
    Assignee: COSMO OIL CO., LTD.
    Inventors: Naohisa Tachiya, Shigeyuki Funada, Masahiro Ishizuka
  • Patent number: 8999296
    Abstract: Provided is a sensitizing detection agent of an oral or intravenous administration type which enables the detection of bladder cancer with a higher sensitivity without causing pain to the patient. A sensitizing detection agent for bladder cancer comprising 5-aminolevulinic acid (ALA), a derivative thereof, or a salt of these is orally or intravenously administered, and a video camera system is inserted via the urethra and a blue light at 380-440 nm is irradiated to observe the red fluorescent part. Further, VLD-M1 is inserted and a blue light at 405 nm is irradiated to observe fluorescence intensity (relative intensity) of the red light part. For oral administration, 20 mg/kg (maximum of 1 g) of ALA is dissolved in 50 mL of a 5% glucose solution prior to the administration.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: April 7, 2015
    Assignees: Kochi University, SBI Pharmaceuticals Co., Ltd.
    Inventors: Keiji Inoue, Masahiro Ishizuka, Tohru Tanaka
  • Publication number: 20150031013
    Abstract: It is to provide a tumor diagnostic agent and a tumor determination method enabling not only determination of the presence or absence of a tumor in a subject, but also determination of whether the tumor is a malignant tumor or a benign tumor, which can be used simply at low cost with reduced side effects and burden. 5-aminolevulinic acid (ALA) or its derivative, or a salt thereof is orally administered at a dose of 5 to 7 mg in terms of ALA per kg of body weight, and a urine sample 4 to 12 hours after the administration is collected. Porphyrins and creatinine in the urine sample are quantitated, and based on the value (nmol/gCre) obtained by dividing the amount of porphyrins by the amount of creatinine, a distinction among an individual without a tumor, an individual with a benign tumor, and an individual with a malignant tumor is determined. The presence or absence of a malignant tumor in a subject can be clearly determined by administering 1 to 3 mg of ALAs in terms of ALA per kg of body weight.
    Type: Application
    Filed: January 15, 2013
    Publication date: January 29, 2015
    Inventors: Tohru Tanaka, Kiwamu Takahashi, Motowo Nakajima, Fuminori Abe, Masahiro Ishizuka, Urara Ota
  • Patent number: 8927532
    Abstract: To provide a therapeutic agent and a diagnostic agent for mitochondrial dysfunction brain diseases including cerebral infarction as a representative. A therapeutic agent for a mitochondrial dysfunction brain disease, which comprises (A) ?-aminolevulinic acid represented by the formula (1), a derivative thereof, or a salt thereof and (B) an iron compound in combination. R2R1NCH2COCH2CH2COR3??(1) wherein R1 and R2 each independently represents a hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group, an aryl group, or an aralkyl group; and R3 represents a hydroxy group, an alkoxy group, an acyloxy group, an alkoxycarbonyloxy group, an aryloxy group, an aralkyloxy group, or an amino group.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 6, 2015
    Assignee: SBI Pharmaceuticals Co., Ltd.
    Inventors: Toshihiko Kuroiwa, Yoshinaga Kajimoto, Takahiro Masubuchi, Masahiro Ishizuka, Tohru Tanaka
  • Publication number: 20140302173
    Abstract: A method for treating side effects of anticancer agent includes administering to a subject in need thereof a prophylactic and/or therapeutic agent containing a therapeutically effective amount of a compound shown by the following Formula (1): R1—NHCH2COCH2CH2COOR2 ??(I) wherein R1 represents a hydrogen atom or an acyl group, and R2 represents a hydrogen atom, a linear or branched alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group, or a salt thereof.
    Type: Application
    Filed: October 5, 2012
    Publication date: October 9, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION KOCHI UNIVERSITY, SBI PHARMACEUTICALS CO., LTD.
    Inventors: Tohru Tanaka, Kyoko Tsuchiya, Masahiro Ishizuka, Motowo Nakajima, Hitoshi Nakagawa, Taro Shuin, Keiji Inoue, Hideo Fukuhara, Masayuki Tsuda, Mutsuo Furihata
  • Patent number: 8790712
    Abstract: The present invention is drawn to a method of inducing thymocyte proliferation in a vertebrate animal with an impaired immune system comprising administering ?-aminolevulinic acid or a salt thereof every day in succession. The method further comprises administering at least one mineral.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: July 29, 2014
    Assignees: Cosmo Oil Co., Ltd., SBI Pharmaceuticals Co., Ltd.
    Inventors: Masao Kondo, Naomi Aiba, Setsuko Miyanari, Tohru Tanaka, Takaya Suzuki, Masahiro Ishizuka