Patents by Inventor Tatsuya Ojio
Tatsuya Ojio 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: 11578158Abstract: The present invention provides a material for intraocular lens which has improved hydrolysis resistance. The material for intraocular lens according to the present invention is obtained by polymerizing a monomer composition comprising: a base monomer, a hydrophilic monomer, and a cross-likable monomer, wherein the base monomer comprises an aromatic ring-containing acrylate monomer and an alkoxyalkyl methacrylate monomer having an alkoxyalkyl group having four or less carbon atoms. A blending ratio on a molar basis of the methacrylate monomer with respect to the acrylate monomer in all the monomer components contained in the monomer composition is 0.25 to 1.00.Type: GrantFiled: January 31, 2018Date of Patent: February 14, 2023Assignee: MENICON CO., LTD.Inventors: Yuya Suganuma, Hiroko Nomura, Tatsuya Ojio, Keishi Tsukamoto
-
Patent number: 11050068Abstract: An ion exchanger used in a cooling system of a fuel cell system, includes: a communicating tube portion including a first flow path which allows coolant introduced from one side to pass therethrough to the other side; a case portion which is provided to communicate with the communicating tube portion; and a storage body which is assembled to the case portion, has a second flow path in which a part of the coolant branches and flows from the communicating tube portion, and is merged with the communicating tube portion again, and stores an ion exchange resin in the second flow path, wherein: an assembled state of the storage body with respect to the case portion is changeable into a plurality of kinds; and a proportion of the coolant that flows to the second flow path is changeable by changing the assembled state of the storage body.Type: GrantFiled: November 21, 2017Date of Patent: June 29, 2021Assignee: TOYODA GOSEI CO., LTD.Inventors: Naoki Yamaguchi, Kosuke Kusaba, Tatsuya Ojio
-
Publication number: 20210061933Abstract: The present invention provides a material for intraocular lens which has improved hydrolysis resistance. The material for intraocular lens according to the present invention is obtained by polymerizing a monomer composition comprising: a base monomer, a hydrophilic monomer, and a cross-likable monomer, wherein the base monomer comprises an aromatic ring-containing acrylate monomer and an alkoxyalkyl methacrylate monomer having an alkoxyalkyl group having four or less carbon atoms. A blending ratio on a molar basis of the methacrylate monomer with respect to the acrylate monomer in all the monomer components contained in the monomer composition is 0.25 to 1.00.Type: ApplicationFiled: January 31, 2018Publication date: March 4, 2021Applicant: MENICON CO., LTD.Inventors: Yuya SUGANUMA, Hiroko NOMURA, Tatsuya OJIO, Keishi TSUKAMOTO
-
Patent number: 10716875Abstract: An intraocular lens includes a polymeric lens material formed from a polymerizable composition. The polymerizable composition includes: (a) a single aromatic acrylate monomer which is an aromatic-ring containing acrylate; (b) an alkoxyalkyl methacrylate monomer having an alkoxyalkyl group with 4 or less carbon atoms; (c) an alkyl acrylate monomer having an alkyl group with 1 to 20 carbon atoms; (d) a hydrophilic monomer; and (e) a crosslinkable monomer.Type: GrantFiled: January 31, 2018Date of Patent: July 21, 2020Assignee: MENICON CO., LTDInventors: Yuya Suganuma, Hiroko Nomura, Tatsuya Ojio, Keishi Tsukamoto
-
Patent number: 10702606Abstract: The present invention provides a peptide composition that can achieve both excellent storage stability and transparency. The peptide composition of the present invention includes: a self-assembling peptide; a buffering agent having a pKa of 3.5 or more and less than 7.5 and containing one or more nitrogen atoms; and water, and has a pH of from 4.5 to 6.6.Type: GrantFiled: December 10, 2015Date of Patent: July 7, 2020Assignee: MENICON CO., LTD.Inventors: Yuya Suganuma, Tatsuya Ojio, Hidenori Yokoi
-
Patent number: 10632204Abstract: The present invention provides a peptide composition that can achieve both excellent storage stability and transparency. The peptide composition of the present invention includes: a self-assembling peptide; a buffering agent having a pKa of 3.5 or more and less than 7.5 and containing one or more nitrogen atoms; and water, and has a pH of from 4.5 to 6.6.Type: GrantFiled: December 10, 2015Date of Patent: April 28, 2020Assignee: MENICON CO., LTD.Inventors: Yuya Suganuma, Tatsuya Ojio, Hidenori Yokoi
-
Patent number: 10581092Abstract: An ion exchanger for a cooling system of a fuel cell system includes: a communicating pipe part with the two ends thereof configured respectively to be connectable to predetermined piping arranged in the cooling system, and including a substantially linear shaped first flow path; and a storage case including a second flow path configured such that, when a part of the coolant introduced into the communicating pipe part branches from the coolant of the communicating pipe part and flows toward the second flow path, such partial coolant, after introduced into the second flow path, is allowed to flow therethrough and join again the remaining coolant of the communicating pipe part, while ion exchange resin is stored in the second flow path, wherein an introduction device for introducing the coolant into the second flow path is arranged in the inside of the communicating pipe part.Type: GrantFiled: June 30, 2017Date of Patent: March 3, 2020Assignee: TOYODA GOSEI CO., LTD.Inventors: Naoki Yamaguchi, Tatsuya Ojio, Yoshiki Nakamura, Takeshi Hattori
-
Publication number: 20200038548Abstract: An intraocular lens includes a polymeric lens material formed from a polymerizable composition. The polymerizable composition includes: (a) a single aromatic acrylate monomer which is an aromatic-ring containing acrylate; (b) an alkoxyalkyl methacrylate monomer having an alkoxyalkyl group with 4 or less carbon atoms; (c) an alkyl acrylate monomer having an alkyl group with 1 to 20 carbon atoms; (d) a hydrophilic monomer; and (e) a crosslinkable monomer.Type: ApplicationFiled: January 31, 2018Publication date: February 6, 2020Applicant: MENICON CO., LTD.Inventors: Yuya SUGANUMA, Hiroko NOMURA, Tatsuya OJIO, Keishi TSUKAMOTO
-
Publication number: 20180344861Abstract: The present invention provides a peptide composition that can achieve both excellent storage stability and transparency. The peptide composition of the present invention includes: a self-assembling peptide; a buffering agent having a pKa of 3.5 or more and less than 7.5 and containing one or more nitrogen atoms; and water, and has a pH of from 4.5 to 6.6.Type: ApplicationFiled: December 10, 2015Publication date: December 6, 2018Inventors: Yuya SUGANUMA, Tatsuya OJIO, Hidenori YOKOI
-
Publication number: 20180318464Abstract: An intraocular lens material disclosed in the present description includes an aromatic ring-containing acrylate structural unit, an alkoxyalkyl methacrylate structural unit including an alkoxy group having 4 or less carbon atoms, a hydrophilic structural unit based on a hydrophilic monomer, and a cross-linking structural unit based on a cross-linkable monomer.Type: ApplicationFiled: July 27, 2017Publication date: November 8, 2018Applicant: MENICON CO., LTDInventors: Yuya SUGANUMA, Hiroko NOMURA, Tatsuya OJIO
-
Patent number: 10117965Abstract: An intraocular lens material disclosed in the present description includes an aromatic ring-containing acrylate structural unit, an alkoxyalkyl methacrylate structural unit including an alkoxy group having 4 or less carbon atoms, a hydrophilic structural unit based on a hydrophilic monomer, and a cross-linking structural unit based on a cross-linkable monomer.Type: GrantFiled: July 27, 2017Date of Patent: November 6, 2018Assignee: MENICON CO., LTD.Inventors: Yuya Suganuma, Hiroko Nomura, Tatsuya Ojio
-
Publication number: 20180145349Abstract: An ion exchanger used in a cooling system of a fuel cell system, includes: a communicating tube portion including a first flow path which allows coolant introduced from one side to pass therethrough to the other side; a case portion which is provided to communicate with the communicating tube portion; and a storage body which is assembled to the case portion, has a second flow path in which a part of the coolant branches and flows from the communicating tube portion, and is merged with the communicating tube portion again, and stores an ion exchange resin in the second flow path, wherein: an assembled state of the storage body with respect to the case portion is changeable into a plurality of kinds; and a proportion of the coolant that flows to the second flow path is changeable by changing the assembled state of the storage body.Type: ApplicationFiled: November 21, 2017Publication date: May 24, 2018Inventors: Naoki YAMAGUCHI, Kosuke KUSABA, Tatsuya OJIO
-
Publication number: 20180013155Abstract: An ion exchanger for a cooling system of a fuel cell system includes: a communicating pipe part with the two ends thereof configured respectively to he connectable to predetermined piping arranged in the cooling system, and including a substantially linear shaped first flow path; and a storage case including a second flow path configured such that, when a part of the coolant introduced into the communicating pipe part branches from the coolant of the communicating pipe part and flows toward the second flow path, such partial coolant, after introduced into the second flow path, is allowed to flow therethrough and join again the remaining coolant of the communicating pipe part, while ion exchange resin is stored in the second flow path, wherein an introduction device for introducing the coolant into the second flow path is arranged in the inside of the communicating pipe part.Type: ApplicationFiled: June 30, 2017Publication date: January 11, 2018Inventors: Naoki YAMAGUCHI, Tatsuya OJIO, Yoshiki NAKAMURA, Takeshi HATTORI
-
Patent number: 6355190Abstract: A method of molding an ophthalmic lens product by using a mold assembly which has a mold cavity, the lens product having a configuration corresponding to that of an ophthalmic lens or a precursor of the ophthalmic lens and being obtained by polymerizing a liquid monomer composition in the mold cavity to provide a polymer product which gives the lens product, the method comprising the steps of: preparing the mold assembly having a monomer storage space for storing the liquid monomer composition, which storage space is held in fluid communication with the mold cavity; filling the mold cavity of the mold assembly with the liquid monomer composition while the liquid monomer composition is accommodated in the monomer storage space; and polymerizing the liquid monomer composition at a temperature of 10-80° C. while a pressure higher than the atmospheric pressure is applied directly to a liquid surface of a mass of the liquid monomer composition accommodated in the monomer storage space.Type: GrantFiled: June 15, 1999Date of Patent: March 12, 2002Assignee: Menicon Co., Ltd.Inventors: Tatsuya Ojio, Kazuharu Niwa, Keiji Yamashita, Akihiro Yasuda
-
Patent number: 6326448Abstract: A soft intraocular lens material which consists essentially of a polymer obtained by polymerizing polymerizable components containing a hydrophilic monomer, and which has a water absorptivity of from 1.5 to 4.5 wt %.Type: GrantFiled: February 18, 1999Date of Patent: December 4, 2001Assignee: Menicon Co., Ltd.Inventors: Tatsuya Ojio, Kazuharu Niwa, Tohru Kawaguchi
-
Patent number: 6320008Abstract: A polymeric colorant represented by the following formula: A1—N═N—A2—O—(CH2)n-X wherein, A1 represents an aryl group which may have a substituent group, A2 represents an arylene group which may have a substituent group, X represents one of an acryloyloxy group, a methacryloyloxy group, a vinylphenyl group, a vinylphenyloxy group, and a vinylphenylalkyloxy group whose alkyl portion has 1-5 carbon atoms, and n is an integer of 1-5, and a colored material for an ocular lens which uses to the polymeric colorant is also disclosed.Type: GrantFiled: April 17, 2001Date of Patent: November 20, 2001Assignee: Menicon Co., Ltd.Inventors: Akira Tsuzuki, Kazuharu Niwa, Tatsuya Ojio
-
Publication number: 20010021759Abstract: A polymeric colorant represented by the following formula:Type: ApplicationFiled: April 17, 2001Publication date: September 13, 2001Applicant: Menicon Co., Ltd.Inventors: Akira Tsuzuki, Kazuharu Niwa, Tatsuya Ojio
-
Patent number: 6277940Abstract: There is provided a material for a soft intraocular lens, which has excellent transparency and flexibility, can be inserted from a small incision and has an high refractive index independent on a water content. The material comprises (A) 5-25 % by weight of acrylate containing an aromatic ring, (B) 50-90 % by weight of 2-hydroxyethyl (meth)acrylate, and (C) 5-45 % by weight of a (meth)acrylate monomer having the coefficient of water absorption of the homopolymer thereof of not more than 30 % by weight, except for (A) acrylate containing an aromatic ring and (B) 2-hydroxyethyl (meth)acrylate.Type: GrantFiled: February 11, 1999Date of Patent: August 21, 2001Assignee: Menicon Co. LtdInventors: Kazuharu Niwa, Tatsuya Ojio, Toru Kawaguchi
-
Patent number: 6258299Abstract: A device comprises a lower die 6 composed of a lower die base portion and a lower die columnar portion of which tip surface is formed with a lower die molding surface corresponding to one surface of an ocular lens material; an upper die 8 composed of an upper die base portion that is fitted into an upper portion of a hollow hole of the cylindrical main body for parting the hollow hole into two, forming an intermediate chamber 18 between itself and the lower die base portion into which the monomer composition is filled, and forming an exterior accumulating chamber 20 on a side of an upper aperture of the hollow hole into which the monomer composition is accumulated, and an upper die columnar portion of which tip surface is formed with an upper die molding surface corresponding to another surface of the ocular lens material, wherein a molding cavity 22 having a communicating portion 24 is formed between the upper die molding surface and the lower die molding surface; and not less than three piercing holes 16 prType: GrantFiled: June 14, 1999Date of Patent: July 10, 2001Assignee: Menicon Co., Ltd.Inventors: Keiji Yamashita, Tatsuya Ojio, Tohru Kawaguchi
-
Patent number: 6242551Abstract: A polymeric colorant represented by the following formula: A1—N═N—A2—O—(CH2)n—X wherein, A1 represents an aryl group which may have a substituent group, A2 represents an arylene group which may have a substituent group, X represents one of an acryloyloxy group, a methacryloyloxy group, a vinylphenyl group, a vinylphenyloxy group, and a vinylphenylalkyloxy group whose alkyl portion has 1-5 carbon atoms, and n is an integer of 1-5, and a colored material for an ocular lens which uses the polymeric colorant is also disclosed.Type: GrantFiled: February 17, 1999Date of Patent: June 5, 2001Assignee: Menicon Co., Ltd.Inventors: Akira Tsuzuki, Kazuharu Niwa, Tatsuya Ojio