Patents by Inventor Motohiro Mitani

Motohiro Mitani 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: 20060217276
    Abstract: Contact lens wetting solutions for reducing friction between the contact lens and ocular tissues, and maintaining such effect for a long time, are disclosed. The wetting solution is composed only of a particular ratio of a lubricant composed of copolymer (A) obtained by polymerizing a monomer composition comprising 2-(meth)acryloyloxyethyl phosphorylcholine and alkyl(meth)acrylate, a buffer, an inorganic chloride, a preservative, a chelating agent, and water. The copolymer (A) has a weight average molecular weight of 100,000 to 1,000,000, and satisfies the formula 80?N×R?240, provided that 4?N?18 and 10%?R?60%, wherein N stands for the carbon number of the alkyl group in monomer Y constituting copolymer (A), and R stands for a molar fraction of the unit derived from monomer Y with respect to the sum of the units derived from monomers X and Y.
    Type: Application
    Filed: June 8, 2006
    Publication date: September 28, 2006
    Applicants: NOF Corporation, Nobuo Nakabayashi, Kazuhiko Ishihara
    Inventors: Motohiro Mitani, Ryota Ando, Hirofumi Irie, Ken Suzuki, Nobuo Nakabayashi, Kazuhiko Ishihara
  • Publication number: 20030186825
    Abstract: Contact lens wetting solutions for reducing friction between the contact lens and ocular tissues, and maintaining such effect for a long time, are disclosed. The wetting solution is composed only of a particular ratio of a lubricant composed of copolymer (A) obtained by polymerizing a monomer composition comprising 2-(meth)acryloyloxyethyl phosphorylcholine and alkyl(meth)acrylate, a buffer, an inorganic chloride, a preservative, a chelating agent, and water. The copolymer (A) has a weight average molecular weight of 100,000 to 1,000,000, and satisfies the formula 80≦N×R≦240, provided that 4≦N≦18 and 10%≦R≦60%, wherein N stands for the carbon number of the alkyl group in monomer Y constituting copolymer (A), and R stands for a molar fraction of the unit derived from monomer Y with respect to the sum of the units derived from monomers X and Y.
    Type: Application
    Filed: February 21, 2003
    Publication date: October 2, 2003
    Inventors: Motohiro Mitani, Ryota Ando, Hirofumi Irie, Ken Suzuki, Nobuo Nakabayashi, Kazuhiko Ishihara
  • Patent number: 5807942
    Abstract: A polymerized product of protein, comprising a polymer of one or more protein-containing monomers represented by the general formulaP.sub.r --?(Y).sub.k --(X).sub.m --R.sup.1 !.sub.n (1)wherein R.sup.1 represents a polymerizable group capable of causing a radical polymerization, P.sub.r denotes a protein residue, Y denotes a group formed from a functional group in said protein and the functional group R.sub.2 of the modifying agent given below, X denotes an organic divalent radical, k is zero or 1, m is zero or 1 and n is a numeral of 1 or higher,said protein-containing monomer being obtained by reacting a protein with a modifying agent represented by the general formula,R.sup.2 --(X).sub.m --R.sup.1 (2)wherein R.sub.2 represents a functional group capable of combining with a functional group of protein and R.sup.1, X and m are as given above.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: September 15, 1998
    Assignee: NOF Corporation
    Inventors: Shujiro Sakaki, Satoshi Yamada, Motohiro Mitani, Kenshiro Shuto, Yasumi Koinuma
  • Patent number: 5378589
    Abstract: A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: January 3, 1995
    Assignees: Nippon Oil and Fats Co., Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Yoshii Morishita, Mitsuo Katayose, Tadashi Okamoto, Nobuyuki Hayashi
  • Patent number: 5348890
    Abstract: Trioxane derivatives represented by the formula (I): ##STR1## wherein A and RA are the same with or different from each other, and represent a substituted or unsubstituted aliphatic hydrocarbon group, respectively, or represent R.sub.1 --X.sub.1 --or R.sub.2 --X.sub.2 --in which X.sub.1 and X.sub.2 represent independently a divalent organic residue, and R.sub.1 and R.sub.2 represent independently carboxyl group, amino group, hydroxyl group or mercapto group, and Z represents hydrogen atom, halogen atom, methyl group, ethyl group or propyl group, or carboxyl, amino, hydroxyl or mercapto group through a divalent organic residue, and process for the preparation thereof, as well as method for chemiluminescence comprising mixing the trioxane derivatives and a base.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: September 20, 1994
    Assignee: NOF Corporation
    Inventors: Shuji Ichikawa, Motohiro Mitani, Yuko Yokoyama, Hideo Sawada, Takeo Matsumoto
  • Patent number: 5338877
    Abstract: A fluoroalkyl group-containing organosilicon oligomer is represented by the following formula (I) or (IV) of: ##STR1## wherein R, R.sub.1, R.sub.2, X and Y each are the same or different groups and stand for an alkyl, alkoxy or alkylcarbonyloxy group having 1 to 10 carbon atoms, n represents an integer of 1 to 3, m.sub.1 and m.sub.3 represent an integer of 1 to 10, m.sub.2 represents an integer of 0 to 10, m.sub.4 represents an integer of 1 to 5 and R.sub.F represents ##STR2## where A stands for a hydrogen atom, a fluorine atom or a chlorine atom, n.sub.1 represents an integer of 1 to 10 and n.sub.2 represents an integer of 0 to 8. A surface treating agent contains the oligomer defined by the formula (I) or (IV).
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: August 16, 1994
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Takeo Matsumoto
  • Patent number: 5324803
    Abstract: A polymer comprising fluoroalkyl group has a structure in which one or two parts of the fluoroalkyl group at the one or both ends of the molecule are linked to a part of alkylene groups or alkylene groups substituted with halogen, a part of alkylene group substituted with functional groups, such as halogen, cyano group, alkylsulfonic acid group, amidoalkylsulfonic acid group, carboxylic acid group, carboxyl group, oxycarbonyl group, ether group, epoxy group and the like, and/or a part of silicone group. A method of preparation of the polymer comprising fluoroalkyl group contains reaction of a fluoroalkanoyl peroxide with a monomer comprising the functional group or a monomer comprising silicone group. A surface active agent comprises fluoroalkyl group and caroxylic acid salt group. A surface treatment agent comprises the polymer comprising fluoroalkyl group, hydrolysis products thereof, hydrolytic condensation products thereof, and mixtures thereof.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 28, 1994
    Assignee: NOF Corporation
    Inventors: Hideo Sawada, Keiji Komoto, Masahiro Sano, Yutaka Enokida, Motohiro Mitani, Takeo Matsumoto, Masaharu Nakayama, Masato Okajima
  • Patent number: 5288891
    Abstract: A fluoroalkyl group-containing organosilicon oligomer is represented by the following formula (I) or (IV) of: ##STR1## wherein R, R.sub.1, R.sub.2, X and Y each are the same or different groups and stand for an alkyl, alkoxy or alkylcarbonyloxy group having 1 to 10 carbon atoms, n represents an integer of 1 to 3, m.sub.1 and m.sub.3 represent an integer of 1 to 10, m.sub.2 represents an integer of 0 to 10, m.sub.4 represents an integer of 1 to 5 and R.sub.F represents --CF.sub.2).sub.n.sbsb.1 A or ##STR2## where A stands for a hydrogen atom, a fluorine atom or a chlorine atom, n.sub.1 represents an integer of 1 to 10 and n.sub.2 represents an integer of 0 to 8. A surface treating agent contains the oligomer defined by the formula (I) or (IV).
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: February 22, 1994
    Assignee: Nippon Oil and Fats Co. Ltd.
    Inventors: Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Takeo Matsumoto
  • Patent number: 5260435
    Abstract: A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: November 9, 1993
    Assignees: Nippon Oil and Fats Co., Ltd., Hitachi Chemical Co., Ltd.
    Inventors: Hideo Sawada, Motohiro Mitani, Masaharu Nakayama, Yoshii Morishita, Mitsuo Katayose, Tadashi Okamoto, Nobuyuki Hayashi