Patents by Inventor Toshinari OH-HARA
Toshinari OH-HARA 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: 10557790Abstract: A method and apparatus for analyzing carbon isotope 14C is provided. A carbon isotope analyzer including an isotopic carbon dioxide generator to generate isotopic carbon dioxide from a carbon isotope; a spectrometer including an optical resonator having a pair of mirrors, and a photodetector to determine the intensity of light transmitted from the optical resonator; and a light generator including a light source, a first optical fiber to transmit a light beam from the light source, a second optical fiber for wavelength conversion, the second optical fiber branching from the first optical fiber at a point and combining with the first optical fiber at another point downstream of the branching point, and a non-linear optical crystal to generate light having the absorption wavelength of the isotopic carbon dioxide on the basis of the difference in frequency between light beams transmitted through the optical crystal.Type: GrantFiled: May 29, 2018Date of Patent: February 11, 2020Assignees: SEKISUI MEDICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Tetsuo Iguchi, Hideki Tomita, Norihiko Nishizawa, Toshinari Oh-Hara, Akira Ideno
-
Patent number: 10386231Abstract: A carbon isotope analyzer 1 includes a carbon dioxide isotope generator 40 that includes a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope, and a carbon dioxide isotope purifying unit; a spectrometer 10 including an optical resonator 11 having a pair of mirrors 12, and a photodetector 15 that determines the intensity of light transmitted from the optical resonator 11; and a light generator 20 including a light source 23, a first optical fiber 21 to transmit a light beam from the light source 23, a second optical fiber 22 for wavelength conversion, the second optical fiber 22 splitting from the first optical fiber 21 at a point and combining with the first optical fiber 21 at another point downstream of the splitting point, and a non-linear optical crystal 25 that generates light having the absorption wavelength of the carbon dioxide isotope on the basis of the difference in frequency between light beams transmitted through the optical crystal 25.Type: GrantFiled: March 2, 2016Date of Patent: August 20, 2019Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, SEKISUI MEDICAL CO., LTD.Inventors: Tetsuo Iguchi, Hideki Tomita, Norihiko Nishizawa, Takahiro Hirotsu, Satoshi Yuruzume, Ryohei Terabayashi, Toshinari Oh-Hara, Akira Ideno, Atsushi Sato
-
Publication number: 20180275050Abstract: A method and apparatus for analyzing carbon isotope 14C is provided. A carbon isotope analyzer including an isotopic carbon dioxide generator to generate isotopic carbon dioxide from a carbon isotope; a spectrometer including an optical resonator having a pair of mirrors, and a photodetector to determine the intensity of light transmitted from the optical resonator; and a light generator including a light source, a first optical fiber to transmit a light beam from the light source, a second optical fiber for wavelength conversion, the second optical fiber branching from the first optical fiber at a point and combining with the first optical fiber at another point downstream of the branching point, and a non-linear optical crystal to generate light having the absorption wavelength of the isotopic carbon dioxide on the basis of the difference in frequency between light beams transmitted through the optical crystal.Type: ApplicationFiled: May 29, 2018Publication date: September 27, 2018Applicants: SEKISUI MEDICAL CO., LTD., National University Corporation Nagoya UniversityInventors: Tetsuo IGUCHI, Hideki TOMITA, Norihiko NISHIZAWA, Toshinari OH-HARA, Akira IDENO
-
Patent number: 10012586Abstract: A method and apparatus for analyzing carbon isotope 14C is provided. A carbon isotope analyzer including an isotopic carbon dioxide generator to generate isotopic carbon dioxide from a carbon isotope; a spectrometer including an optical resonator having a pair of mirrors, and a photodetector to determine the intensity of light transmitted from the optical resonator; and a light generator including a light source, a first optical fiber to transmit a light beam from the light source, a second optical fiber for wavelength conversion, the second optical fiber branching from the first optical fiber at a point and combining with the first optical fiber at another point downstream of the branching point, and a non-linear optical crystal to generate light having the absorption wavelength of the isotopic carbon dioxide on the basis of the difference in frequency between light beams transmitted through the optical crystal.Type: GrantFiled: August 11, 2016Date of Patent: July 3, 2018Assignees: SEKISUI MEDICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Tetsuo Iguchi, Hideki Tomita, Norihiko Nishizawa, Toshinari Oh-Hara, Akira Ideno
-
Publication number: 20180052047Abstract: A carbon isotope analyzer 1 includes a carbon dioxide isotope generator 40 that includes a combustion unit that generates gas containing carbon dioxide isotope from carbon isotope, and a carbon dioxide isotope purifying unit; a spectrometer 10 including an optical resonator 11 having a pair of mirrors 12, and a photodetector 15 that determines the intensity of light transmitted from the optical resonator 11; and a light generator 20 including a light source 23, a first optical fiber 21 to transmit a light beam from the light source 23, a second optical fiber 22 for wavelength conversion, the second optical fiber 22 splitting from the first optical fiber 21 at a point and combining with the first optical fiber 21 at another point downstream of the splitting point, and a non-linear optical crystal 25 that generates light having the absorption wavelength of the carbon dioxide isotope on the basis of the difference in frequency between light beams transmitted through the optical crystal 25.Type: ApplicationFiled: March 2, 2016Publication date: February 22, 2018Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, SEKISUI MEDICAL CO., LTD.Inventors: Tetsuo IGUCHI, Hideki TOMITA, Norihiko NISHIZAWA, Takahiro HIROTSU, Satoshi YURUZUME, Ryohei TERABAYASHI, Toshinari OH-HARA, Akira IDENO, Atsushi SATO
-
Publication number: 20170115269Abstract: A problem to be solved by the present invention is to provide an acylcarnitine composition easy to handle in a solution state and having long-term storage stability. The problem is solved by an acylcarnitine composition characterized by having at least one or more acylcarnitines dissolved in an organic solvent containing an organic acid.Type: ApplicationFiled: March 31, 2015Publication date: April 27, 2017Applicant: SEKISUI MEDICAL CO., LTD.Inventors: Tomoyoshi SHIROSHITA, Naoko OH-YAMA, Akira IDENO, Toshinari OH-HARA
-
Publication number: 20160349177Abstract: Provided are a simple and convenient apparatus capable of analyzing carbon isotope 14C and a method of analyzing the carbon isotope.Type: ApplicationFiled: August 11, 2016Publication date: December 1, 2016Applicants: SEKISUI MEDICAL CO., LTD., National University Corporation Nagoya UniversityInventors: Tetsuo IGUCHI, Hideki TOMITA, Norihiko NISHIZAWA, Toshinari OH-HARA, Akira IDENO