Patents by Inventor Masahiko Tanahashi

Masahiko Tanahashi 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: 11938503
    Abstract: An ultrafine bubble (UFB)-containing liquid manufacturing apparatus includes a liquid ejecting unit having a thermal energy generating element, a flow path for leading liquid to the thermal energy generating element, a driving unit configured to drive the thermal energy generating element, and an ejection opening. The UFB-containing liquid manufacturing apparatus also includes a collecting unit configured to collect liquid ejected from the ejection opening. The driving unit drives the thermal energy generating element to cause film boiling in liquid led to the flow path and causes liquid containing ultrafine bubbles generated by the film boiling to be ejected from the ejection opening.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 26, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Takahashi, Masahiko Kubota, Ikuo Nakazawa, Akitoshi Yamada, Nobuhisa Tanahashi
  • Patent number: 6692758
    Abstract: The present invention relates to an implant attachment stabilizer having, as an effective component, a methanebisphosphonic acid derivative represented by general formula (I) [where, in the formula, X, Y, m, n, , A, B, R1, R2, R3 and R4 are as defined in the Specification], or hydrate thereof.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: February 17, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Masatoshi Ito, Yuriko Kawai, Seiji Okazaki, Masahiko Tanahashi, Kang Jung Kim, Miho Iwase
  • Patent number: 6579860
    Abstract: An interleukin-6 production inhibitor is provided containing a methanebisphosphonic acid derivative as an active component, which has inhibitory effects on interleukin-6 production and is useful in prevention and treatment of diseases due to abnormal production of the interleukin-6. This pharmaceutical is anticipated to have effects in prevention and treatment of diseases related to the interleukin-6, for example, thrombocytosis, inflammatory diseases, abnormal immune response diseases, osteoporosis, rheumatoid arthritis, hypercalcemia, multiple myeloma, cachexia, and nephritis.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: June 17, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Junzo Koike, Yuriko Funaba, Masahiko Tanahashi, Seiji Okazaki, Masatoshi Ito
  • Patent number: 6555529
    Abstract: The present invention has the objective of offering drug for treating abnormalities in bone marrow which corrects the biological balance in the bone marrow, in particular which has the effect of suppressing inflammatory cell infiltration and suppressing cell growth-differentiation factor increase. The present invention relates to drug for treating abnormalities in bone marrow which has, as an effective component, a methanebisphosphonic acid derivative, ester thereof, medicinally acceptable salt thereof, or a hydrate of these. The methanebisphosphonic acid derivatives of the present invention show an outstanding bone marrow abnormality therapeutic effect, so efficacy can be expected in the prevention and treatment of rheumatoid arthritis, multiple myeloma, osteomyelitis and other bone marrow abnormalities. Furthermore, application can also be expected in the prevention and treatment of hypoplastic anaemia, myelocytic leukaemia and other such haematopoietic disorders.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: April 29, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Yuriko Funaba, Junzo Koike, Masahiko Tanahashi, Seiji Okazaki, Masatoshi Ito
  • Patent number: 5683992
    Abstract: The present invention relates to a methanediphosphonate derivative, its manufacturing process, and pharmaceutical applications, that is represented with the following formula: ##STR1## wherein, D is either sulfur, oxygen, NH, alkyl-substituted N, CH.sub.2, or SCH.sub.2, X represents an alkyl group, alkyl group having a hetero atom as a substitution group, an aryl group or an acyl group, m represents an integer of 1 to 5, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen, alkyl groups having 1 to carbon atoms or pharmaceutically allowable cations. .function.The compounds of the present invention have excellent IL-1 inhibitory action, antioxidation action and bone resorption inhibitory action, and are useful as antiinflammatory agents, antirheumatic agents, bone metabolic disease drugs, autoimmune disease drugs, or osteoporosis drugs.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: November 4, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Norio Kawabe, Hiromi Uchiro, Teruo Nakadate, Masahiko Tanahashi, Masatoshi Ito
  • Patent number: 5618804
    Abstract: A methane diphosphonic acid derivative represented by the general formula (I): ##STR1## wherein, X and Y are defined in the specification; m represents an integer of 0 to 3; n represents an integer of 0 to 4; and each X of the (X).sub.m and each Y of the (Y).sub.n may be either identical or different; . . . represents a double bond or single bond; A is --(CH.sub.2)a--(D)b--(CH.sub.2)c-- (wherein D is sulfur, oxygen, NH, alkyl-substituted N, or CH.sub.2, a and c are integers of 0 to 10 and b is 0 or 1), or --(CH.dbd.CH)d.dbd.CH= (wherein d is an integer of 0 to 2, and B does not exist when A represents --CH.dbd.CH)d--CH.dbd.), B refers to a hydrogen atom, alkyl group, amino group, monoalkylamino group, dialkylamino group, acylamino group, hydroxyl group, alkoxy group, trialkylsiloxy group or acyloxy group, and each of R.sup.1, R.sup.2, R.sup.3 and R.sup.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: April 8, 1997
    Assignee: Toray Industries, Inc.
    Inventors: Norio Kawabe, Hiromi Uchiro, Teruo Nakadate, Masahiko Tanahashi, Yuriko Funaba
  • Patent number: 5527940
    Abstract: The present invention relates to a methanediphosphonate derivative, its manufacturing process and pharmaceutical applications, that is represented with the following formula: ##STR1## (wherein, B is either hydrogen, an alkyl group, hydroxyl group, alkoxy group or amino group, D is either sulfur, oxygen, NH, alkyl-substituted N, CH.sub.2 or SCH.sub.2, X represents an alkyl group, alkyl group having a hetero atom as a substitution group, an aryl group or an acyl group, m represents an integer of 1 to 5, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen, alkyl groups having 1 to 7 carbon atoms or pharmaceutically allowable cations). The compound of the present invention has excellent IL-1 inhibitory action, antioxidation action and bone resorption inhibitory action, and is useful as an antiinflammatory agent, antirheumatic, bone metabolic disease drug, autoimmune disease drug, osteoporosis drug and so forth.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: June 18, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Norio Kawabe, Hiromi Uchiro, Teruo Nakadate, Masahiko Tanahashi, Masatoshi Ito