Patents by Inventor Kenichiro Miyazawa

Kenichiro Miyazawa 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).

  • Antireflection film, optical element and ophthalmology apparatus
    Patent number: 10345489
    Abstract: An antireflection film is provided on a substrate. The antireflection film includes at least nine layers. An outermost layer of the nine layers is formed by SiO2 or MgF2.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: July 9, 2019
    Assignee: TOPCON CORPORATION
    Inventors: Hiroki Fukaya, Kenichiro Miyazawa
  • ANTIREFLECTION FILM, OPTICAL ELEMENT AND OPHTHALMOLOGY APPARATUS
    Publication number: 20170090071
    Abstract: An antireflection film is provided on a substrate. The antireflection film includes at least nine layers. An outermost layer of the nine layers is formed by SiO2 or MgF2.
    Type: Application
    Filed: August 29, 2016
    Publication date: March 30, 2017
    Applicant: TOPCON CORPORATION
    Inventors: Hiroki FUKAYA, Kenichiro MIYAZAWA
  • Optical-isomer separating agent for chromatography and process for producing the same
    Patent number: 8362237
    Abstract: A novel optical-isomer separating agent for chromatography is provided which has, as a chiral selector, a macrocyclic amide compound having the ability to function as a chiral shift agent. The optical-isomer separating agent for chromatography is formed by bonding, with a carrier by chemical bonding, a specific ring structure containing an asymmetry recognition site, an amide group as a hydrogen-bond donor site, and a hydrogen-bond acceptor site.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: January 29, 2013
    Assignees: National University Corporation Okayama University, Daicel Chemical Industries, Ltd.
    Inventors: Tadashi Ema, Takashi Sakai, Daisuke Tanida, Kyoko Sugita, Atsushi Ohnishi, Kenichiro Miyazawa
  • Method of manufacturing substances by supercritical fluid chromatography
    Patent number: 8158004
    Abstract: Provided is a method of manufacturing target substances with use of supercritical fluid chromatography, by which the following are achieved: solution of a problem at the time of sequential injections of samples containing the target substances; an increase of a treatment amount of separation per unit time; and improvement of efficiency in separation. The method includes the steps of: injecting the sample containing the target substances into a mobile phase; and returning composition of the mobile phase to a pre-change state after changing the composition of the mobile phase. The step of returning the composition of the mobile phase to the pre-change state after changing the composition of the mobile phase is performed during a period of time from detection of a peak of one of the target substances which is eluted latest from a column among the target substances separated by the supercritical fluid chromatography apparatus to injection of the next sample, whereby the problem is solved.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: April 17, 2012
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Kenichiro Miyazawa, Takeshi Ishiguro
  • Method of manufacturing substances by supercritical fluid chromatography
    Publication number: 20120006750
    Abstract: Provided is a method of manufacturing target substances with use of supercritical fluid chromatography, by which the following are achieved: solution of a problem at the time of sequential injections of samples containing the target substances; an increase of a treatment amount of separation per unit time; and improvement of efficiency in separation. The method includes the steps of: injecting the sample containing the target substances into a mobile phase; and returning composition of the mobile phase to a pre-change state after changing the composition of the mobile phase. The step of returning the composition of the mobile phase to the pre-change state after changing the composition of the mobile phase is performed during a period of time from detection of a peak of one of the target substances which is eluted latest from a column among the target substances separated by the supercritical fluid chromatography apparatus to injection of the next sample, whereby the problem is solved.
    Type: Application
    Filed: October 22, 2009
    Publication date: January 12, 2012
    Inventors: Kenichiro Miyazawa, Takeshi Ishiguro
  • OPTICAL-ISOMER SEPARATING AGENT FOR CHROMATOGRAPHY AND PROCESS FOR PRODUCING THE SAME
    Publication number: 20100292464
    Abstract: A novel optical-isomer separating agent for chromatography is provided which has, as a chiral selector, a macrocyclic amide compound having the ability to function as a chiral shift agent. The optical-isomer separating agent for chromatography is formed by bonding, with a carrier by chemical bonding, a specific ring structure containing an asymmetry recognition site, an amide group as a hydrogen-bond donor site, and a hydrogen-bond acceptor site.
    Type: Application
    Filed: January 30, 2009
    Publication date: November 18, 2010
    Inventors: Tadashi Ema, Takashi Sakai, Daisuke Tanida, Kyoko Sugita, Atsushi Ohnishi, Kenichiro Miyazawa