Patents by Inventor Yoshinori Kadoma

Yoshinori Kadoma 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: 7683103
    Abstract: A dental polymerizable composition comprising (a) a fluorine compound comprising a chain polymer having a main chain comprising a monomer unit having a hydrophilic group, and terminal groups comprising a fluoroalkyl group at each of both ends of the main chain; (b) a polymerizable monomer; and (c) a polymerization initiator.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: March 23, 2010
    Assignee: Kuraray Medical Inc.
    Inventors: Hideo Sawada, Junji Tagami, Toru Nikaido, Khairul Matin, Yoshinori Kadoma, Eiichi Masuhara, Koichi Okada, Junichi Yamauchi
  • Publication number: 20080039592
    Abstract: A dental polymerizable composition comprising (a) a fluorine compound comprising a chain polymer having a main chain comprising a monomer unit having a hydrophilic group, and terminal groups comprising a fluoroalkyl group at each of both ends of the main chain; (b) a polymerizable monomer; and (c) a polymerization initiator.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 14, 2008
    Applicant: Kuraray Medical Inc.
    Inventors: Hideo Sawada, Junji Tagami, Toru Nikaido, Khairul Matin, Yoshinori Kadoma, Eiichi Masuhara, Koichi Okada, Junichi Yamauchi
  • Patent number: 6951463
    Abstract: The first embodiment of present invention provides a composition, which includes: (a) a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor; (b) at least one selected from the group including: a silicon compound having the following formula (I): wherein X1, X2, X3 and X4 each independently represent an alkoxy group or a halogen atom, a hydrolyzate of the silicon compound (I), a silicone resin, silicone resin precursor and silica; and (c) a liquid medium. Another embodiment of the present invention provides a dental and oralogic composition, that includes a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor. Another embodiment of the present invention provides a dental and oralogic composition, that includes a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor, and a liquid medium.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 4, 2005
    Assignee: Kuraray Co., Ltd.
    Inventors: Eiichi Masuhara, Yoshinori Kadoma, Junichi Yamauchi, Koichi Okada, Satoshi Yamaguchi
  • Publication number: 20040157954
    Abstract: The bone cement composition of the present invention comprises a liquid component including ethyl methacrylate as the main component and a powder component including an ethyl methacrylate/methyl methacrylate copolymer as the main component.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 12, 2004
    Inventors: Yohji Imai, Yoshinori Kadoma, Kazuo Takakuda, Sadao Morita
  • Patent number: 6388034
    Abstract: An adhesive composition for metals including an unsaturated thiirane compound having at least one thiirane group bonded with a saturated carbon atom and having at least one olefin-type double bond is provided. The composition is useful for adhesion of noble metals or noble metal alloys.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: May 14, 2002
    Assignee: Kanebo Limited
    Inventors: Yoshinori Kadoma, Tomomi Nakanishi, Tetsuro Ohta
  • Publication number: 20020016429
    Abstract: An adhesive composition for metals including an unsaturated thiirane compound having at least one thiirane group bonded with a saturated carbon atom and having at least one olefin-type double bond is provided. The composition is useful for adhesion of noble metals or noble metal alloys.
    Type: Application
    Filed: December 18, 1997
    Publication date: February 7, 2002
    Inventors: YOSHINORI KADOMA, TOMOMI NAKANISHI, TETSURO OHTA
  • Publication number: 20010002994
    Abstract: The first embodiment of present invention provides a composition, which includes:
    Type: Application
    Filed: December 4, 2000
    Publication date: June 7, 2001
    Applicant: Kuraray Co., Ltd
    Inventors: Eiichi Masuhara, Yoshinori Kadoma, Junichi Yamauchi, Koichi Okada, Satoshi Yamaguchi
  • Patent number: 5670657
    Abstract: A novel compound useful as a precious metal adhesive component is provided which can exhibit high and durable adhesivity with precious metals, such as gold, silver, platinum, and palladium, and alloys thereof. The compound is a (meth)acrylic ester derivative having a disulfide cyclic group which is represented by the general formula ?I!: ##STR1## in which R.sub.1 represents a hydrogen atom or a methyl group, and R.sub.2 represents a C1-C14 alkylene group which may have a substituent.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: September 23, 1997
    Assignee: Kabushiki Kaisha Shofu
    Inventors: Katsunori Kojima, Yoshinori Kadoma, Kunio Ikemura
  • Patent number: 5166117
    Abstract: A polymerization initiator composition controlling polymerization at interface, comprising a (thio)barbituric acid compound represented by the general formula I: ##STR1## wherein R.sup.1 is an alkyl group of 1 to 3 carbon atoms, R.sup.2 and R.sup.3 are independently hydrogen atom or an alkyl group of 1 to 3 carbon atoms, and X is oxygen atom or sulfur atom, and (a) a metal halide represented by the general formula, MY.sub.n wherein M is Cu or Fe, Y is halogen atom, and n is an integer of 2 when M is Cu or an integer of 3 when M is Fe, or (b) a halogen ion-forming compound and M.sup.m -forming compound wherein M is Cu or Fe and m is 2+ when M is Cu or 3+ when M is Fe, and a curable composition comprising the (thio)barbituric acid and radically polymerizable monomer.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: November 24, 1992
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Yoji Imai, Yoshinori Kadoma, Toru Kawashima
  • Patent number: 4923905
    Abstract: A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is a combination of an .alpha.-diketone and a polyperoxy ester containing a benzophenone group and represented by the general formula (I) of: ##STR1## wherein R.sub.1 and R.sub.1 ' represent a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' represent a hydrogen atom, a tertiary alkoxy group or a tertiary aralkyloxy group.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 8, 1990
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
  • Patent number: 4746685
    Abstract: A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is selected from a combination of an organic peroxide and a pyrylium salt compound of: ##STR1## Wherein R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group and the like, X stands for an oxygen or sulfur atom and Y for an anionic functional group; a polyperoxy ester containing a benzophenone group; and a combination the polyperoxy ester and an .alpha.-diketone.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: May 24, 1988
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
  • Patent number: 4650843
    Abstract: When trifluoroethyl methacrylate, hexafluoroisopropyl methacrylate, pentafluoro-n-propyl methacrylate and/or pentafluoro-n-butyl methacrylate which are fluorine-containing monomers, are added to a conventional monomer mixture for producing a soft contact lens, the resulting soft contact lens has the same optical properties and elasticity as conventional soft contact lenses have, and is very superior to the conventional ones in resistance to deposit and in shape stability.
    Type: Grant
    Filed: January 2, 1985
    Date of Patent: March 17, 1987
    Assignee: Hoya Lens Corporation
    Inventors: Yuuichi Yokoyama, Eiichi Masuhara, Yoshinori Kadoma, Niro Tarumi, Makoto Tsuchiya