Patents Assigned to Mitsubishi Pharma Corporation
  • Patent number: 6667025
    Abstract: The methods and compositions of the invention and the compounds used in the invention involve a novel immunosuppression mechanism, accelerated lymphocyte homing immunosuppression (ALH-immunosuppression). For example, the compound FTY720 specifically directs lymphocytes to the peripheral lymph nodes, mesenteric lymph nodes, and Peyer's patches. By reversibly sequestering lymphocytes in these tissues, the compounds can inhibit an immune response in a mammal. Understanding these mechanisms provides a novel immunosuppression therapy that can synergistically interact with other immunosuppressive compounds. Screening methods for identifying similar ALH-immunosuppression compounds are also described. The invention allows better treatments and therapies wherever an immunosuppression regimen is desired.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: December 23, 2003
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Kenji Chiba, Kunitomo Adachi
  • Patent number: 6649625
    Abstract: An agent for the prophylaxis and treatment of glaucoma, which contains a compound having a Rho kinase inhibitory activity, particularly an agent for the prophylaxis and treatment of glaucoma, which contains a compound of the formula (I) wherein each symbol is as defined in the specification, as the compound having a Rho kinase inhibitory activity, is provided. The agent for the prophylaxis and treatment of glaucoma of the present invention is a novel agent for the prophylaxis and treatment of glaucoma and has intraocular pressure lowering action, optic disc blood flow improving action and aqueous humor outflow promoting action.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: November 18, 2003
    Assignees: Senju Pharmaceutical Co., Ltd., Mitsubishi Pharma Corporation
    Inventors: Mitsuyoshi Azuma, Yukuo Yoshida, Mitsunori Waki, Masayoshi Uehata
  • Publication number: 20030203354
    Abstract: A method for screening an apoptosis inhibitor characterized by screening a candidate via an effect on PGT. A cell protecting agent containing as the active ingredient a substance which can be incorporated into cells via prostaglandin transporter (PGT); and a screening method therefor comprising measuring the uptake into cells via PGT. An apoptosis inducer containing as the active ingredient a substance having a PGT inhibitory effect; and a screening method therefor comprising measuring the ability to induce apoptosis of cells with the expression of PGT. Because of having a cell apoptosis inhibitory effect, the cell protecting agent is useful as a nerve cell apoptosis inhibitor, a nerve cell protecting agent, etc. and applicable to the prevention or treatment of nervous diseases, etc. The apoptosis inducer is useful in preventing and/or treating diseases in association with cell proliferation such as tumor, etc.
    Type: Application
    Filed: June 11, 2003
    Publication date: October 30, 2003
    Applicant: MITSUBISHI PHARMA CORPORATION
    Inventors: Tooru Kawamura, Satoshi Horie, Toshiaki Akira, Norifumi Nakamura, Tomoyuki Maruyama, Kazutaka Hayashi
  • Patent number: 6632958
    Abstract: An alkene (1) is added to cyclopentenone (2) under the action of an alkyl lithium and an organic copper reagent to form an adduct, said adduct is reacted with e.g.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 14, 2003
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Masahiro Urushihara, Yoshitomi Morizawa
  • Patent number: 6617133
    Abstract: The invention provides a process for purifying recombinant human serum albumin (rHSA) by heating a-culture medium containing rHSA and the rHSA-producing host cells, feeding said heated solution upwardly into a fluidized bed in which adsorbent particles are suspended to effect contacting with the adsorbent particles and then recovering the adsorbed fraction containing the rHSA, and a composition comprising rHSA which shows a A350/A280 ratio of below 0.015, when formulated into a 25% solution of said albumin.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: September 9, 2003
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Munehiro Noda, Akinori Sumi, Takao Ohmura, Kazumasa Yokoyama
  • Patent number: 6610729
    Abstract: The present invention relates to a hydroxamic acid derivative of the formula (I) wherein each symbol is as defined in the specification, a pharmacologically acceptable salt thereof, a pharmaceutical composition containing the derivative or a salt thereof, and to pharmaceutical use thereof. The hydroxamic acid derivative and a pharmacologically acceptable salt thereof of the present invention have an inhibitory activity of TNF &agr; production, and are useful for, for example, the prophylaxis and treatment of the diseases such as autoimmune diseases and inflammatory diseases (e.g., sepsis, MOF, rheumatoid arthritis, Crohn's disease, cachexia, myasthenia gravis, systemic lupus erythematosus, asthma, I type diabetes, psoriasis and the like), and the like.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 26, 2003
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Tomokazu Gotou, Shinji Takeda, Kazuhiro Maeda, Tomohiro Yoshida, Naoki Sugiyama, Tadahiro Takemoto
  • Publication number: 20030129666
    Abstract: The present invention provides a proteome analysis method including grouping a proteome into membrane proteins and compounds capable of interacting with the membrane proteins, while retaining their native structure and function, and analyzing both the membrane proteins and the compounds based on biological affinity, and devices therefore.
    Type: Application
    Filed: October 4, 2002
    Publication date: July 10, 2003
    Applicant: Mitsubishi Pharma Corporation
    Inventors: Kenji Tanaka, Lyang-ja Lee, Hiromichi Mukai, Koji Munechika, Hisashi Arikuni, Mieko Shiwa, Bungo Ochiai
  • Publication number: 20030109498
    Abstract: 2-amino-6-arylthiopurinephosphonate used in the antiviral agent of the present invention has no toxicity such as bone marrow cell growth inhibition or mutagenicity, and has a high antiviral activity, oral absorbency and safety. Furthermore, the compound of the present invention is effective for a mutant virus which is known to exhibit resistance to the conventional antiviral agents. Therefore, the present invention can provide a useful antiviral agent which leads to the establishment of a method for treating hepatitis B, which is a medically important object.
    Type: Application
    Filed: October 29, 2001
    Publication date: June 12, 2003
    Applicant: MITSUBISHI PHARMA CORPORATION
    Inventors: Satoshi Yuasa, Naohiro Kamiya, Masao Omata
  • Publication number: 20030055064
    Abstract: The present invention relates to a piperazine compound of the formula 1
    Type: Application
    Filed: July 2, 2002
    Publication date: March 20, 2003
    Applicant: Mitsubishi Pharma Corporation
    Inventors: Kunitomo Adachi, Yoshiyuki Aoki, Tokushi Hanano, Hiroshi Morimoto, Masao Hisadome
  • Publication number: 20030044843
    Abstract: The present invention provides a proteome analysis method including grouping a proteome into membrane proteins and compounds capable of interacting with the membrane proteins, while retaining their native structure and function, and analyzing both the membrane proteins and the compounds based on biological affinity, and devices therefor.
    Type: Application
    Filed: January 3, 2002
    Publication date: March 6, 2003
    Applicant: Mitsubishi Pharma Corporation
    Inventors: Kenji Tanaka, Lyang-ja Lee, Hiromichi Mukai, Koji Munechika, Hisashi Arikuni, Mieko Shiwa, Bungo Ochiai
  • Publication number: 20030018034
    Abstract: The present invention relates to a piperazine compound of the formula 1
    Type: Application
    Filed: August 1, 2002
    Publication date: January 23, 2003
    Applicant: Mitsubishi Pharma Corporation
    Inventors: Kunitomo Adachi, Yoshiyuki Aoki, Tokushi Hanano, Hiroshi Morimoto, Masao Hisadome
  • Patent number: 6476004
    Abstract: Medicinal compositions which can be processed into solutions and are useful in inhibiting rejection reactions against the transplantation of organs or bone marrow, in the maintenance immunotherapy therefor or in treating autoimmune diseases, characterized by containing 2-amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol or pharmaceutically acceptable acid-addition salts thereof and cyclodextrins as a stabilizer optionally together with saccharides, if required.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: November 5, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Atsushi Sakai, Rumiko Masuda, Tsuneo Fujii, Tadashi Mishina, Kenji Chiba
  • Patent number: 6468998
    Abstract: The present invention provides a pyrrolidine compound of the formula (I) wherein each symbol is as defined in the specification, an optically active compound thereof and a pharmaceutically acceptable salt thereof. The present invention further provides a pharmaceutical composition containing a compound of the formula (I), an optically active compound thereof, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable additive. The compound of the present invention has a serotonin 2 receptor antagonistic action along with a platelet aggregation suppressive action, a peripheral circulation improving action and a lacrimation promoting action. Therefore, the compound of the present invention can be a useful medicine showing effect against thrombotic embolism, dry eye and the like.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: October 22, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Takanobu Kuroita, Masakazu Fujio, Haruto Nakagawa
  • Patent number: 6455521
    Abstract: A condensed thiophene compound of the formula (I) wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt thereof and hydrates thereof. The compound of the formula (I) of the present invention is useful as a novel antipsychotic agent which is effective for both positive symptoms and negative symptoms of schizophrenia, which is associated with less side effects such as extrapyramidal motor disorder and the like and which is less associated with serious side effects such as agranulocytosis and the like. In addition, this compound is also useful as a therapeutic agent of Alzheimer's disease and manic-depressive illness.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: September 24, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Koji Seio, Hiroshi Tanaka, Toshiyuki Kohara, Kenji Hashimoto, Masatake Fujimura, Hideki Horiuchi, Hiroshi Yasumatsu, Koreichi Kimura
  • Patent number: 6455528
    Abstract: The present invention relates to a piperazine compound of the formula wherein R1 and R2 are each hydrogen, halogen, lower alkyl, lower alkoxy, amino, substituted amino, nitro, hydroxy or cyano, R3, R4 and R5 are each hydrogen, halogen, lower alkyl, lower alkoxy, nitro, amino, substituted amino or hydroxy, R6 and R7 are each hydrogen, lower alkyl, lower alkyl substituted by halogen, aralkyl, acyl or lower acyl substituted by halogen, R8 and R9 are each hydrogen or lower alkyl, Y is lower alkylene and the like, and ring A is phenyl, pyrimidyl, thiazolyl, pyridyl, pyrazyl or imidazolyl, a pharmaceutically acceptable salt thereof and pharmaceutical agents containing these compounds.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Kunitomo Adachi, Yoshiyuki Aoki, Tokushi Hanano, Hiroshi Morimoto, Masao Hisadome
  • Patent number: 6451825
    Abstract: A Rho kinase inhibitor is provided as a novel pharmaceutical agent, particularly as a therapeutic agent of hypertension, a therapeutic agent of angina pectoris, a suppressive agent of cerebrovascular contraction, a therapeutic agent of asthma, a therapeutic agent of peripheral circulation disorder, a prophylactic agent of immature birth, a therapeutic agent of arteriosclerosis, an anti-cancer drug, an anti-inflammatory agent, an immunosuppressant, a therapeutic agent of autoimmune disease, an anti-AIDS drug, a contraceptive, a prophylactic agent of digestive tract infection, a therapeutic agent of osteoporosis, a therapeutic agent of retinopathy and a brain function improving drug. In addition, the Rho kinase inhibitor is provided as a reagent and a diagnostic.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: September 17, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Masayoshi Uehata, Takashi Ono, Hiroyuki Satoh, Keiji Yamagami, Toshio Kawahara
  • Patent number: 6372800
    Abstract: A benzene compound of the formula wherein each symbol is as defined in the specification; an optically active isomer or salt thereof, a medicinal composition containing the same, and an immunosuppressant containing the same as the active ingredient.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: April 16, 2002
    Assignee: Mitsubishi Pharma Corporation
    Inventors: Tetsuro Fujita, Kunitomo Adachi, Toshiyuki Kohara, Masatoshi Kiuchi, Kenji Chiba, Koji Teshima, Tadashi Mishina
  • Patent number: 6369061
    Abstract: A therapeutic agent for spinal canal stenosis is provided, which contains a pyridazinone compound of the formula (I) wherein R1, R2 and R3 are each independently a hydrogen atom or a lower alkyl, X is a halogen atom, a cyano or a hydrogen atom, Y is a halogen atom, a trifluoromethyl or a hydrogen atom, and A is a C1-C8 alkylene optionally substituted with a hydroxyl, or its pharmacologically acceptable salt.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: April 9, 2002
    Assignees: Mitsubishi Pharma Corporation, Nissan Chemical Industries, Ltd.
    Inventors: Tomoyuki Maruyama, Toru Kawamura, Toshiaki Akira, Hideaki Kido, Norifumi Nakamura