Patents by Inventor Uichi Akiba

Uichi Akiba 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: 6868786
    Abstract: A patterning method for micro-contact printing involves the steps of: applying a resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying a molecular ink including hydrophobic molecules dispersed in a solvent on the stamp; forming micro-contact printed patterns of the hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied; dipping the substrate with micro-contact printed patterns in a hydrophilic molecule solution dispersed in a solvent to give chemical modification to the areas of the surface of the substrate around the micro-contact printed patterns, the solution including hydrophilic molecules having a chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: March 22, 2005
    Assignee: Dainippon Printing Co., Ltd.
    Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
  • Patent number: 6817293
    Abstract: A patterning method for micro-contact printing involves the steps of: applying a resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying a molecular ink including hydrophobic molecules dispersed in a solvent on the stamp; forming micro-contact printed patterns of the hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied; dipping the substrate with micro-contact printed patterns in a hydrophilic molecule solution dispersed in a solvent to give chemical modification to the areas of the surface of the substrate around the micro-contact printed patterns, the solution including hydrophilic molecules having a chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 16, 2004
    Assignee: Dainippon Printing Co., Ltd.
    Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
  • Publication number: 20040134883
    Abstract: In patterning method with micro-contact printing comprising the steps of: applying resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying molecular ink including hydrophobic molecules dispersed in solvent on the stamp and forming micro-contact printed patterns of hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied and; dipping the substrate with micro-contact printed patterns in hydrophilic molecule solution dispersed in solvent to give chemical modification to the areas of the surface of substrate around the micro-contact printed patterns, solution including hydrophilic molecules having chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 15, 2004
    Applicant: DAINIPPON PRINTING CO., LTD.
    Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
  • Publication number: 20030010241
    Abstract: In patterning method with micro-contact printing comprising the steps of: applying resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying molecular ink including hydrophobic molecules dispersed in solvent on the stamp and forming micro-contact printed patterns of hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied and; dipping the substrate with micro-contact printed patterns in hydrophilic molecule solution dispersed in solvent to give chemical modification to the areas of the surface of substrate around the micro-contact printed patterns, solution including hydrophilic molecules having chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.
    Type: Application
    Filed: March 27, 2002
    Publication date: January 16, 2003
    Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
  • Patent number: 5382332
    Abstract: An electrocatalyst for use in electrolytic reduction of carbon dioxide gas in an aqueous solution. The electrocatalyst is formed of nickel alkyl cyclam which is expressed by the general formula: ##STR1## where each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is selected from the group consisting of hydrogen atom and aliphatic saturated hydrocarbon group expressed by the formula of C.sub.n H.sub.2n+1 ; wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the aliphatic saturated hydrocarbon group in which n is a number ranging from 1 to 22. The nickel alkyl cyclam as the electrocatalyst is excellent in stability and energy consumption improving effect while exhibiting a high carbon dioxide gas reduction effect, as compared with conventional nickel cyclam.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: January 17, 1995
    Assignees: Nissan Motor Co., Ltd., Masamichi Fujihira
    Inventors: Masamichi Fujihira, Yoshiki Hirata, Kosaku Suga, Uichi Akiba
  • Patent number: 5284563
    Abstract: An electrocatalyst for use in electrolytic reduction of carbon dioxide gas in an aqueous solution. The electrocatalyst is formed of nickel alkyl cyclam which is expressed by the general formula: ##STR1## where each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is selected from the group consisting of hydrogen atom and aliphatic saturated hydrocarbon group expressed by the formula of C.sub.n H.sub.2n+1 ; wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the aliphatic saturated hydrocarbon group in which n is a number ranging from 1 to 22. The nickel alkyl cyclam as the electrocatalyst is excellent in stability and energy consumption improving effect while exhibiting a high carbon dioxide gas reduction effect, as compared with conventional nickel cyclam.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: February 8, 1994
    Assignees: Nissan Motor Co., Ltd., Masamichi Fujihira
    Inventors: Masamichi Fujihira, Yoshiki Hirata, Kosaku Suga, Uichi Akiba, Yasuo Nakamura
  • Patent number: 4668815
    Abstract: Disclosed herein are derivatives of phenylacetic ester represented by the formula (I): ##STR1## wherein R.sup.1 represents a halogen atom or a lower alkoxy group; R.sup.2 represents a lower alkyl group; R.sup.3 represents a hydrogen atom or a methyl group; R.sup.4 represents a hydrogen atom, a lower alkyl group, ##STR2## and R.sup.5 represents a hydrogen atom or a halogen atom, a process for producing the derivatives and an insecticidal composition containing the derivatives of phenylacetic ester as an active ingredient.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: May 26, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Enari, Yutaka Konai, Uichi Akiba, Masayo Ito