Patents by Inventor Kazuhiro Kosumi

Kazuhiro Kosumi 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).

  • Method for producing trans-bis(aminomethyl)cyclohexane, method for producing bis(isocyanatomethyl)cyclohexane, bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, and polyurethane resin
    Patent number: 9969675
    Abstract: A method for producing trans-bis(aminomethyl)cyclohexane includes a trans-isomerization step in which cis-dicyanocyclohexane is isomerized into trans-dicyanocyclohexane by heating dicyanocyclohexane containing cis-dicyanocyclohexane in the presence of a tar component produced by distillation of dicyanocyclohexane; and an aminomethylation step in which trans-dicyanocyclohexane produced by the trans-isomerization step is allowed to contact with hydrogen to produce trans-bis(aminomethyl)cyclohexane.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 15, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takeshi Fukuda, Kazuhiro Kosumi, Jun Takahashi, Keita Takuno, Ryo Shinagawa, Masashi Shimamoto, Gran Martinez Alejandro, Satoshi Yamasaki, Goro Kuwamura
  • Eyewear material, eyewear frame, and eyewear
    Patent number: 9720137
    Abstract: The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan ? peak at both less than 0° C. and 0° C. or more and 70° C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5° C./min and a measurement frequency of 10 Hz.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 1, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoshi Yamasaki, Goro Kuwamura, Daisuke Nishiguchi, Daisuke Hasegawa, Toshihiko Nakagawa, Hirokazu Morita, Hidetaka Tsukada, Kenichi Goto, Shinsuke Ito, Naoyuki Kakinuma, Tetsuya Hamada, Shinji Kiyono, Takeshi Fukuda, Kazuhiro Kosumi
  • 1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens
    Patent number: 9475903
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 25, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoshi Yamasaki, Hirokazu Morita, Goro Kuwamura, Daisuke Nishiguchi, Toshihiko Nakagawa, Daisuke Hasegawa, Tetsuya Hamada, Shinji Kiyono, Takeshi Fukuda, Kazuhiro Kosumi, Hidetaka Tsukada, Kenichi Goto, Shinsuke Ito, Naoyuki Kakinuma
  • 1,4-bis(isocyanatomethyl)cyclohexane, polyisocyanate composition, polyurethane resin, molded article, eyewear material, eyewear frame, and lens
    Patent number: 9477012
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: October 25, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Satoshi Yamasaki, Hirokazu Morita, Goro Kuwamura, Daisuke Nishiguchi, Toshihiko Nakagawa, Daisuke Hasegawa, Tetsuya Hamada, Shinji Kiyono, Takeshi Fukuda, Kazuhiro Kosumi, Hidetaka Tsukada, Kenichi Goto, Shinsuke Ito, Naoyuki Kakinuma
  • EYEWEAR MATERIAL, EYEWEAR FRAME, AND EYEWEAR
    Publication number: 20160238857
    Abstract: The eyewear material is an eyewear material containing thermoplastic polyurethane. The eyewear material has a tan ? peak at both less than 0° C. and 0° C. or more and 70° C. or less observed in dynamic viscoelasticity measurement in tensile mode under the measurement conditions of a temperature increase speed of 5° C./min and a measurement frequency of 10 Hz.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 18, 2016
    Inventors: Satoshi YAMASAKI, Goro KUWAMURA, Daisuke NISHIGUCHI, Daisuke HASEGAWA, Toshihiko NAKAGAWA, Hirokazu MORITA, Hidetaka TSUKADA, Kenichi GOTO, Shinsuke ITO, Naoyuki KAKINUMA, Tetsuya HAMADA, Shinji KIYONO, Takeshi FUKUDA, Kazuhiro KOSUMI
  • METHOD FOR PRODUCING TRANS-BIS(AMINOMETHYL)CYCLOHEXANE, METHOD FOR PRODUCING BIS(ISOCYANATOMETHYL)CYCLOHEXANE, BIS(ISOCYANATOMETHYL)CYCLOHEXANE, POLYISOCYANATE COMPOSITION, AND POLYURETHANE RESIN
    Publication number: 20160207875
    Abstract: A method for producing trans-bis(aminomethyl)cyclohexane includes a trans-isomerization step in which cis-dicyanocyclohexane is isomerized into trans-dicyanocyclohexane by heating dicyanocyclohexane containing cis-dicyanocyclohexane in the presence of a tar component produced by distillation of dicyanocyclohexane; and an aminomethylation step in which trans-dicyanocyclohexane produced by the trans-isomerization step is allowed to contact with hydrogen to produce trans-bis(aminomethyl)cyclohexane.
    Type: Application
    Filed: July 25, 2014
    Publication date: July 21, 2016
    Inventors: Takeshi FUKUDA, Kazuhiro KOSUMI, Jun TAKAHASHI, Keita TAKUNO, Ryo SHINAGAWA, Masashi SHIMAMOTO, Gran Martinez Alejandro, Satoshi YAMASAKI, Goro KUWAMURA
  • 1,4-BIS(ISOCYANATOMETHYL)CYCLOHEXANE, POLYISOCYANATE COMPOSITION, POLYURETHANE RESIN, MOLDED ARTICLE, EYEWEAR MATERIAL, EYEWEAR FRAME, AND LENS
    Publication number: 20150342276
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Application
    Filed: September 25, 2014
    Publication date: December 3, 2015
    Inventors: Satoshi YAMASAKI, Hirokazu MORITA, Goro KUWAMURA, Daisuke NISHIGUCHI, Toshihiko NAKAGAWA, Daisuke HASEGAWA, Tetsuya HAMADA, Shinji KIYONO, Takeshi FUKUDA, Kazuhiro KOSUMI, Hidetaka TSUKADA, Kenichi GOTO, Shinsuke ITO, Naoyuki KAKINUMA
  • 1,4-BIS(ISOCYANATOMETHYL)CYCLOHEXANE, POLYISOCYANATE COMPOSITION, POLYURETHANE RESIN, MOLDED ARTICLE, EYEWEAR MATERIAL, EYEWEAR FRAME, AND LENS
    Publication number: 20150346387
    Abstract: 1,4-bis(isocyanatomethyl)cyclohexane contains 70 mol % or more and 95 mol % or less of a trans isomer relative to a total amount of a cis isomer and the trans isomer, and 0.
    Type: Application
    Filed: June 5, 2015
    Publication date: December 3, 2015
    Inventors: Satoshi YAMASAKI, Hirokazu MORITA, Goro KUWAMURA, Daisuke NISHIGUCHI, Toshihiko NAKAGAWA, Daisuke HASEGAWA, Tetsuya HAMADA, Shinji KIYONO, Takeshi FUKUDA, Kazuhiro KOSUMI, Hidetaka TSUKADA, Kenichi GOTO, Shinsuke ITO, Naoyuki KAKINUMA
  • Method for producing tolylene diisocyanate
    Patent number: 8748654
    Abstract: A method for producing tolylene diisocyanate includes: mixing a first diaminotoluene containing 2,4-diaminotoluene and 2,6-diaminotoluene at a first isomer ratio and a second diaminotoluene containing 2,4-diaminotoluene and/or 2,6-diaminotoluene at a second isomer ratio that is different from the first isomer ratio so as to prepare mixed diaminotoluene; producing tolylene dicarbamate by reaction of the mixed diaminotoluene, urea and/or N-unsubstituted carbamic acid ester and alcohol; and thermally decomposing the tolylene dicarbamate.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 10, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Koji Takamatsu, Kazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki
  • METHOD FOR PRODUCING TOLYLENE DIISOCYANATE
    Publication number: 20140073811
    Abstract: A method for producing tolylene diisocyanate includes: mixing a first diaminotoluene containing 2,4-diaminotoluene and 2,6-diaminotoluene at a first isomer ratio and a second diaminotoluene containing 2,4-diaminotoluene and/or 2,6-diaminotoluene at a second isomer ratio that is different from the first isomer ratio so as to prepare mixed diaminotoluene; producing tolylene dicarbamate by reaction of the mixed diaminotoluene, urea and/or N-unsubstituted carbamic acid ester and alcohol; and thermally decomposing the tolylene dicarbamate.
    Type: Application
    Filed: April 6, 2012
    Publication date: March 13, 2014
    Applicant: MITSUI CHEMICALS, INC
    Inventors: Koji Takamatsu, Kazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki
  • Process for production of zinc toluenesulfonate, zinc toluenesulfonate, and process for production of carbamate
    Patent number: 8664420
    Abstract: A process for producing zinc toluenesulfonate comprising reacting a zinc compound comprising Zn(OH)2 with toluenesulfonic acid and/or a salt thereof in the presence of an alcohol having 1 to 20 carbon atoms in total at a temperature higher than 60° C.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: March 4, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki
  • PROCESS FOR PRODUCTION OF ZINC TOLUENESULFONATE, ZINC TOLUENESULFONATE, AND PROCESS FOR PRODUCTION OF CARBAMATE
    Publication number: 20120259134
    Abstract: A process for producing zinc toluenesulfonate comprising reacting a zinc compound comprising Zn(OH)2 with toluenesulfonic acid and/or a salt thereof in the presence of an alcohol having 1 to 20 carbon atoms in total at a temperature higher than 60° C.
    Type: Application
    Filed: January 7, 2011
    Publication date: October 11, 2012
    Inventors: Kazuhiro Kosumi, Takeshi Fukuda, Masaaki Sasaki