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: 7683103Abstract: 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: GrantFiled: August 11, 2005Date of Patent: March 23, 2010Assignee: Kuraray Medical Inc.Inventors: Hideo Sawada, Junji Tagami, Toru Nikaido, Khairul Matin, Yoshinori Kadoma, Eiichi Masuhara, Koichi Okada, Junichi Yamauchi
-
Publication number: 20080039592Abstract: 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: ApplicationFiled: August 11, 2005Publication date: February 14, 2008Applicant: Kuraray Medical Inc.Inventors: Hideo Sawada, Junji Tagami, Toru Nikaido, Khairul Matin, Yoshinori Kadoma, Eiichi Masuhara, Koichi Okada, Junichi Yamauchi
-
Patent number: 6951463Abstract: 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: GrantFiled: December 4, 2000Date of Patent: October 4, 2005Assignee: Kuraray Co., Ltd.Inventors: Eiichi Masuhara, Yoshinori Kadoma, Junichi Yamauchi, Koichi Okada, Satoshi Yamaguchi
-
Publication number: 20040157954Abstract: 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: ApplicationFiled: February 3, 2004Publication date: August 12, 2004Inventors: Yohji Imai, Yoshinori Kadoma, Kazuo Takakuda, Sadao Morita
-
Patent number: 6388034Abstract: 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: GrantFiled: December 18, 1997Date of Patent: May 14, 2002Assignee: Kanebo LimitedInventors: Yoshinori Kadoma, Tomomi Nakanishi, Tetsuro Ohta
-
Publication number: 20020016429Abstract: 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: ApplicationFiled: December 18, 1997Publication date: February 7, 2002Inventors: YOSHINORI KADOMA, TOMOMI NAKANISHI, TETSURO OHTA
-
Publication number: 20010002994Abstract: The first embodiment of present invention provides a composition, which includes:Type: ApplicationFiled: December 4, 2000Publication date: June 7, 2001Applicant: Kuraray Co., LtdInventors: Eiichi Masuhara, Yoshinori Kadoma, Junichi Yamauchi, Koichi Okada, Satoshi Yamaguchi
-
Patent number: 5670657Abstract: 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: GrantFiled: January 23, 1996Date of Patent: September 23, 1997Assignee: Kabushiki Kaisha ShofuInventors: Katsunori Kojima, Yoshinori Kadoma, Kunio Ikemura
-
Patent number: 5166117Abstract: 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: GrantFiled: September 12, 1991Date of Patent: November 24, 1992Assignee: Terumo Kabushiki KaishaInventors: Yoji Imai, Yoshinori Kadoma, Toru Kawashima
-
Patent number: 4923905Abstract: 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: GrantFiled: February 26, 1988Date of Patent: May 8, 1990Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
-
Patent number: 4746685Abstract: 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: GrantFiled: August 23, 1985Date of Patent: May 24, 1988Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Eiichi Masuhara, Yoshinori Kadoma, Takeo Matsumoto, Takeshi Komai, Eiichi Yamada, Osamu Nakachi, Godo Irukayama
-
Patent number: 4650843Abstract: 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: GrantFiled: January 2, 1985Date of Patent: March 17, 1987Assignee: Hoya Lens CorporationInventors: Yuuichi Yokoyama, Eiichi Masuhara, Yoshinori Kadoma, Niro Tarumi, Makoto Tsuchiya