Patents by Inventor Masakazu Fukushima

Masakazu Fukushima 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: 20090281105
    Abstract: The present invention relates to a radiotherapy enhancer that can reduce the radiation dose and adverse drug reactions when used in combination with a cancer radiotherapy. A radiotherapy enhancer comprising (A) tegafur and (B) gimeracil.
    Type: Application
    Filed: July 17, 2009
    Publication date: November 12, 2009
    Applicant: TAIHO PHARMACEUTICAL CO., LTD
    Inventor: Masakazu Fukushima
  • Publication number: 20090137640
    Abstract: The present invention relates to a radiotherapy enhancer that can reduce the radiation dose and adverse drug reactions when used in combination with a cancer radiotherapy. There is provided a radiotherapy enhancer comprising, as an active ingredient, a pyridine derivative represented by general formula (1): wherein R1, R2, and R4 may be the same or different from one another and represent a hydrogen atom, hydroxy group, or protected hydroxy group, excluding the case where R1, R2, and R4 are all a hydrogen atom, and R3 represents a halogen atom, amino group, carboxyl group, carbamoyl group, cyano group, nitro group, alkyl group having 1 to 6 carbon atoms, alkenyl group having 2 to 6 carbon atoms, or carbonyl group containing an alkoxy group having 1 to 6 carbon atoms).
    Type: Application
    Filed: March 31, 2006
    Publication date: May 28, 2009
    Inventor: Masakazu Fukushima
  • Publication number: 20080275071
    Abstract: The present invention relates to a radiotherapy enhancer that can reduce the radiation dose and adverse drug reactions when used in combination with a cancer radiotherapy. A radiotherapy enhancer comprising (A) tegafur and (B) gimeracil.
    Type: Application
    Filed: March 31, 2006
    Publication date: November 6, 2008
    Applicant: Taiho Pharmaceutical Co., Ltd.
    Inventor: Masakazu Fukushima
  • Publication number: 20040265813
    Abstract: A DNA array for measuring sensitivity to an antimetabolite-type anticancer agent or a combined use of such an anticancer agent and another anticancer agent, characterized by including at least 13 types of target gene fragments, involving at least two types of genes selected from each of the following groups: nucleic acid metabolism-associated enzyme genes, gene repair-associated enzyme genes, drug resistance-associated factor genes and housekeeping genes, wherein these gene fragments have been selected by the following steps 1) and 2) and immobilized on a substrate; 1) a step of selecting fragments having high specificity for target genes by searching the homology with the use of databases; and 2) a step of performing Northern hybridization against RNA obtained from tumor cells with the use of the fragments selected in the step 1) as probes to thereby confirm the specificity for the target genes.
    Type: Application
    Filed: January 5, 2004
    Publication date: December 30, 2004
    Inventors: Teiji Takechi, Katsuhisa Koizumi, Atsushi Azuma, Masakazu Fukushima
  • Patent number: 6596720
    Abstract: The present invention provides: an anti-HIV composition comprising at least one member selected from the group consisting of trifluridine and derivatives thereof, and a pharmaceutically acceptable carrier; an anti-HIV composition comprising (a) at least one member selected from the group consisting of trifluridine and derivatives thereof, (b) a thymidine phosphorylase inhibitor, and a pharmaceutically acceptable carrier; and a composition for potentiating the anti-HIV activity of trifluridine and derivatives thereof, comprising a thymidine phosphorylase inhibitor and a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: July 22, 2003
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Hiroo Hoshino, Kenji Kitazato, Masakazu Fukushima
  • Patent number: 6569634
    Abstract: This invention relates to a method for immunologically measuring human thymidylate synthase with an anti-human thymidylate synthase antibody, wherein as the antibody, at least an anti-human thymidylate synthase polyclonal antibody immobilized on an insoluble matrix is used; a method for evaluating sensitivity of cancer cells to a fluoropyrimidine antitumor drug from the results of the measurement by the measuring method; and a human thymidylate synthase measuring kit comprising an insoluble matrix with at least one anti-human thymidylate synthase polyclonal antibody immobilized thereon. By a simple immunological measuring method, human TS in a sample can be measured with high sensitivity.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: May 27, 2003
    Assignees: Taiho Pharmaceutical Co., Ltd., Iatron Laboratories Inc.
    Inventors: Nobuhiro Hoshino, Takeshi Matsuya, Masakazu Fukushima, Hiroyuki Okabe
  • Patent number: 6566582
    Abstract: Non-human animals deficient in a function of a uridine phosphorylase gene on a chromosome, and their offspring. These non-human animals and their offspring make it possible to elucidate pathologic functions and activities of nucleic acid dysbolism and the like and also to predict utility of pyridine nucleoside antimetabolites in human, and are useful as experimental animals.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: May 20, 2003
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Tetsuo Noda, Hiroaki Tsujimoto, Masakazu Fukushima
  • Patent number: 6500932
    Abstract: This invention relates to an anti-human thymidylate synthase monoclonal antibody capable of recognizing an epitope which exists in a region of 187th to 313th amino acids from an N-terminus in human thymidy late synthase, an anti-human thymidylate synthase monoclonal antibody capable of recognizing an epitope which exists in a region of from an N-terminus to a 61st amino acid in human thymidylate synthase, and also hybridomas capable of producing these monoclonal anti-bodies. These monoclonal antibodies are useful for the immunological measurement of human thymidylate synthase.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: December 31, 2002
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Masakazu Fukushima, Hiroyuki Okabe
  • Patent number: 6479500
    Abstract: The present invention provides an agent for alleviating side effects caused by use of an anti-tumor agent, which contains 5-chloro-6-(2-iminopyrrolidin-1-yl)methyl-2,4(1H,3H)-pyrimidi nedione (1) represented by formula (1): or a pharmaceutically acceptable salt thereof. The 5-chloro-6-(2-iminopyrrolidin-1-yl)methyl-2,4(1H,3H)-pyrimidinedione or a pharmaceutically acceptable salt thereof exhibit an inflammatory-suppressing action in the digestive tract and advantageously alleviate diarrhea and loss of body weight concomitant with administration of a chemical for treating cancer without suppressing the anti-tumor effect. Thus, the compounds of the present invention are of great value as agents for alleviating side effects caused by use of an anti-tumor agent, which enable not only the chemotherapy to be continuedly carried out, but also the body exhaustion to be effectively prevented.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: November 12, 2002
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Masakazu Fukushima, Noriyuki Yamamoto, Norihiko Suzuki
  • Patent number: 6294535
    Abstract: The invention relates to novel uracil derivatives having excellent inhibiting effects on human derived thymidine phosphorylates and anti-tumor activity. The pharmaceutical compositions, anti-tumor potentiators and antitumor agents containing such novel compounds, and a process for their preparation and use are described.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: September 25, 2001
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Shingo Yano, Yukio Tada, Hideki Kazuno, Tsutomu Sato, Junichi Yamashita, Norihiko Suzuki, Tomohiro Emura, Masakazu Fukushima, Tetsuji Asao
  • Patent number: 6232935
    Abstract: An AC surface discharge plasma display panel and a method for driving the same are provided. In the method for driving the AC surface discharge plasma display panel according to the present invention, a parallel driving method is used, which is known to have better brightness characteristics than a separate driving method in which the addressing is separate from the discharge sustaining, in which the addressing and discharge sustaining are simultaneously performed. Periods between the discharge sustaining pulses applied to the scanning electrodes and the common electrodes are set as the address time slots periods, a plurality of data pulses are applied in the address time slot periods, and a number of common electrodes equal to the number of data pulses are wired as one common electrode group and are driven by the same signal, in order to solve the restrictions on the number of the horizontal scanning lines which can be scanned, which is a defect of conventional parallel drive methods.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: May 15, 2001
    Assignee: SamSung SDI Co., Ltd.
    Inventors: Masakazu Fukushima, Jeong-duk Ryeom
  • Patent number: 6160017
    Abstract: The invention relates to an agent for preventing and treating ulcerous colitis and/or Crohn's disease, comprising conagenin or a pharmaceutically acceptable salt thereof as an active ingredient. According to the present invention, there is provided an agent for preventing and treating ulcerous colitis and/or Crohn's disease, which has high therapeutic effect and safety.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: December 12, 2000
    Assignees: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Taiho Pharmaceutical Co., Ltd.
    Inventors: Masaaki Ishizuka, Kenji Maeda, Tomio Takeuchi, Tadayoshi Shiraishi, Masakazu Fukushima
  • Patent number: 6159969
    Abstract: The invention relates to novel uracil derivatives having excellent inhibiting effects of human derived thymidine phosphorylase and anti-tumor activity. The pharmaceutical compositions, anti-tumor potentiators, antitumor agents containing such novel compounds, and a process for their preparation and use is described.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: December 12, 2000
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Shingo Yano, Yukio Tada, Hideki Kazuno, Tsutomu Sato, Junichi Yamashita, Norihiko Suzuki, Tomohiro Emura, Masakazu Fukushima, Tetsuji Asao
  • Patent number: 5990139
    Abstract: This invention relates to a thiazolidinedione derivative represented by the following formula (1): ##STR1## wherein R.sup.1 and R.sup.2 individually represent H, a halogen atom, or a halogen-substituted or -unsubstituted lower alkyl or alkoxy group, and R.sup.1 and R.sup.2 may be coupled together to form a ring of an alkylenedioxy chain, X represents a nitrogen atom or a CH group, A represents a substituted or unsubstituted imidazolidinone, pyrrolidinone, imidazole or pyrazole ring, or a salt thereof; and a pharmaceutical composition containing the thiazolidinedione derivative or a salt thereof. The above compound has excellent blood sugar-lowering action and blood lipid-lowering action and is useful as a therapeutic agent for diabetes.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: November 23, 1999
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Shingo Yano, Kazuo Ogawa, Masakazu Fukushima
  • Patent number: 5869464
    Abstract: The compounds of the invention are a 2'-deoxy-5-fluorouridine derivative represented by the formula ##STR1## wherein one of R.sub.1 and R.sub.2 is a hydrogen atom or a group easily hydrolyzable in vivo, the other is a benzyl group which may optionally have at least one halogen atom or trifluoromethyl group as a substituent on the phenyl ring, and R.sub.3 is a lower alkyl group, and a pharmaceutically acceptable salt thereof.The compounds of the invention can be suitably used as an antitumor agent.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: February 9, 1999
    Assignee: Taiho Pharmaceutical Co. Ltd.
    Inventors: Makoto Nomura, Makoto Kajitani, Junichi Yamashita, Masakazu Fukushima, Yuji Shimamoto
  • Patent number: 5744475
    Abstract: The invention relates to novel uracil derivatives having excellent inhibiting effects of human derived thymidine phosphorylase and anti-tumor activity. The pharmaceutical compositions, anti-tumor potentiators, antitumor agents containing such novel compounds, and a process for their preparation and use is described.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: April 28, 1998
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Shingo Yano, Yukio Tada, Hideki Kazuno, Tsutomu Sato, Junichi Yamashita, Norihiko Suzuki, Tomohiro Emura, Masakazu Fukushima, Tetsuji Asao
  • Patent number: 5525603
    Abstract: This invention provides a composition, method and kit for potentiating the antitumor effect of tegafur and reducing the side effects of tegafur, comprising a compound of the formula ##STR1## wherein X is a halogen atom or a cyano group and oxonic acid or a pharmaceutically acceptable salt thereof, and also provides a composition, method and kit for treating a tumor, comprising tegafur, a compound of the formula (I) and oxonic acid or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: June 11, 1996
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Tetsuhiko Shirasaka, Masakazu Fukushima, Hideyuki Ohshimo, Yuji Shimamoto
  • Patent number: 5521202
    Abstract: A thiazolidine derivative represented by the following formula (1): ##STR1## X represents a carbon atom or nitrogen atom, Y represents an oxygen atom or an imino group; A and B individually represent a lower alkylene group, m stands for 0 or 1, and a method of treatment of diabetes by administration of the compound.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: May 28, 1996
    Assignee: Taiho Pharmaceutical Co., Ltd.
    Inventors: Shingo Yano, Kazuo Ogawa, Masakazu Fukushima
  • Patent number: 5116600
    Abstract: The present invention provides a non-injection type anti-cancer composiiton comprising a 5-fluorouracil type compound and an oxonic acid or a pharmacologically acceptable salt thereof as effective components, the composition being capable of inhibiting inflammation development due to the 5-fluorouracil type compound, and a method of treating a cancer while inhibiting inflammation development due to the 5-fluorouracil type compound.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: May 26, 1992
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Setsuro Fujii, deceased, Shinichiro Fujii, legal heir, Kaoruko Takada, legal heir, Tetsuhiko Shirasaka, Masakazu Fukushima
  • Patent number: 5107172
    Abstract: A charged-particle beam tube having an envelope of a dielectric material and a pattern yoke formed on the inner surface of the envelope. The pattern yoke has a pair of horizonal deflection electrodes and a pair of vertical deflection electrodes arranged alternately. The horizontal deflection electrodes have a greater circumferential width than the vertical deflection electrodes. The horizontal and vertical deflection electrodes are supplied with different bias voltages.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: April 21, 1992
    Assignees: Hitachi, Ltd., Nippon Hoso Kyokai
    Inventors: Kentaro Oku, Masakazu Fukushima, Mitsuhiro Kurashige, Norifumi Egami, Toshio Yamagishi