Patents by Inventor Tomohiro Kai
Tomohiro Kai 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).
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Patent number: 11737957Abstract: A dental curable composition capable of use as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. When a block shape usable as the resin material is produced, while mechanical properties and aesthetic properties required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. The dental curable composition includes (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).Type: GrantFiled: August 30, 2018Date of Patent: August 29, 2023Assignee: SHOFU INC.Inventors: Toshiyuki Nakatsuka, Toshio Kitamura, Masanori Goto, Tomohiro Kai, Satoshi Takano, Yoshiyuki Jogetsu
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Publication number: 20180369076Abstract: A dental curable composition capable of use as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. When a block shape usable as the resin material is produced, while mechanical properties and aesthetic properties required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. The dental curable composition includes (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.001 to 1 part by weight of (d) a chain transfer agent being a terpenoid compound based on 100 parts by weight of the polymerizable monomer (a).Type: ApplicationFiled: August 30, 2018Publication date: December 27, 2018Inventors: Toshiyuki NAKATSUKA, Toshio KITAMURA, Masanori GOTO, Tomohiro KAI, Satoshi TAKANO, Yoshiyuki JOGETSU
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Patent number: 10085923Abstract: The present invention relates to a dental curable composition that can be suitably used as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. An object of the present invention is to provide a dental curable composition in which, when a block shape usable as a resin material for dental cutting and machining is produced while mechanical properties such as hardness, bending strength and compressive strength as well as aesthetic property required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. There is provided a dental curable composition including (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and including 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.Type: GrantFiled: June 12, 2015Date of Patent: October 2, 2018Assignee: SHOFU INC.Inventors: Toshiyuki Nakatsuka, Toshio Kitamura, Masanori Goto, Tomohiro Kai, Satoshi Takano, Yoshiyuki Jogetsu
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Patent number: 9988803Abstract: A urinal having the bowl surface formed by only the front face portion in an upper region which does not have any forwardly projecting plate-like side walls at opposite sides thereof as in the conventional urinal. Flush water cleans a wider part of the bowl surface than in the prior art as well as reduce an area of the bowl surface that is not cleaned and provide an improved cleanliness and sanitation of the bowl surface. The urinal includes: a bowl surface being arranged so as to situate between a line segment connecting the left and right side edges and an arcuate segment of a circle having a diameter corresponding to the line segment, as viewed in the horizontal section through the flush water discharging device.Type: GrantFiled: March 13, 2015Date of Patent: June 5, 2018Assignee: TOTO LTD.Inventors: Minoru Tani, Yusuke Takiguchi, Yuichi Furuta, Tomohiro Kai, Hironori Yamasaki
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Publication number: 20160000660Abstract: The present invention relates to a dental curable composition that can be suitably used as a dental material that can substitute part or all of a natural tooth, in particular, a resin material for dental cutting and machining in the field of dental care. An object of the present invention is to provide a dental curable composition in which, when a block shape usable as a resin material for dental cutting and machining is produced while mechanical properties such as hardness, bending strength and compressive strength as well as aesthetic property required for a crown prosthetic appliance are maintained, the dental curable composition can be molded and processed with pressure and heating while strain generated in the block is reduced and no cracks and chipping occur. There is provided a dental curable composition including (a) a polymerizable monomer and (b) a filler in a weight ratio of 10:90 to 70:30, and including 0.01 to 10 parts by weight of (c) a polymerization initiator and 0.Type: ApplicationFiled: June 12, 2015Publication date: January 7, 2016Inventors: Toshiyuki NAKATSUKA, Toshio KITAMURA, Masanori GOTO, Tomohiro KAI, Satoshi TAKANO, Yoshiyuki JOGETSU
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Publication number: 20150275495Abstract: A urinal having the bowl surface formed by only the front face portion in an upper region which does not have any forwardly projecting plate-like side walls at opposite sides thereof as in the conventional urinal. Flush water cleans a wider part of the bowl surface than in the prior art as well as reduce an area of the bowl surface that is not cleaned and provide an improved cleanliness and sanitation of the bowl surface. The urinal includes: a bowl surface being arranged so as to situate between a line segment connecting the left and right side edges and an arcuate segment of a circle having a diameter corresponding to the line segment, as viewed in the horizontal section through the flush water discharging device.Type: ApplicationFiled: March 13, 2015Publication date: October 1, 2015Inventors: Minoru TANI, Yusuke TAKIGUCHI, Yuichi FURUTA, Tomohiro KAI, Hironori YAMASAKI
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INK COMPOSITION, ORGANIC EL DEVICE USING INK COMPOSITION, AND METHOD FOR PRODUCING ORGANIC EL DEVICE
Publication number: 20140008642Abstract: An ink composition that is capable of forming a low molecular weight luminescent material having no repeating structure into a favorable film within a partition wall by coating by a nozzle printing method, an organic EL device using the ink composition, and the method for producing the organic EL device are to be provided. The ink composition is used for forming an organic luminescent medium layer of an organic EL device by a nozzle printing method, in which an organic luminescent layer as one of the organic layer contains a low molecular weight luminescent material that has no repeating structure and a polymer material having a repeating structure, which are mixed with each other, and the polymer material is a nonconductive material.Type: ApplicationFiled: September 13, 2013Publication date: January 9, 2014Applicant: Toppan Printing Co., Ltd.Inventors: Takayuki Morita, Takuma Oouchi, Tomohiro Kai, Yoshihiro Suzuki -
Patent number: D798685Type: GrantFiled: April 29, 2016Date of Patent: October 3, 2017Assignee: Shofu Inc.Inventors: Norihiro Matsui, Tomohiro Kai, Masanori Goto
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Patent number: D811843Type: GrantFiled: November 3, 2016Date of Patent: March 6, 2018Assignee: SHOFU INC.Inventors: Norihiro Matsui, Masayoshi Nishizawa, Tomohiro Kai
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Patent number: D925317Type: GrantFiled: May 29, 2019Date of Patent: July 20, 2021Assignee: SHOFU INC.Inventors: Tomohiro Kai, Masayoshi Nishizawa