Patents by Inventor Akihiro Ishii

Akihiro Ishii 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).

  • Publication number: 20170040725
    Abstract: A connector is provided which includes a stage having an arrangement surface for arranging the end portion of the flat cable, and an opposing portion formed so as to face the arrangement surface. An engaging protruding portion is formed in the arrangement surface for engaging the flat cable. The end portion of the flat cable is insertable from the front side to the rear side of the connector between the arrangement surface and the opposing portion. The opposing portion has an extending portion positioned in front of the engaging protruding portion, and an overhanging portion extending to the rear of a first section.
    Type: Application
    Filed: April 1, 2016
    Publication date: February 9, 2017
    Applicant: Molex, LLC
    Inventors: Akihiro ISHII, Yoshiteru NOGAWA, Kazuya TAKAHASHI
  • Publication number: 20160340284
    Abstract: A production method of ?,?-difluoroacetaldehyde according to the present invention includes reaction of an ?,?-difluoroacetic acid ester with hydrogen gas (H2) in the presence of a ruthenium catalyst. It is possible to selectively obtain ?,?-difluoroacetaldehyde as a partially reduced product of the hydrogenation reaction by the adoption of specific reaction conditions (in particular, reaction solvent and reaction temperature). This hydrogenation process can be alternative to the industrially unpractical hydride reduction process.
    Type: Application
    Filed: August 3, 2016
    Publication date: November 24, 2016
    Inventors: Takashi OOTSUKA, Mari IMAMURA, Akihiro ISHII, Koji UEDA, Shunsuke MIMURA
  • Patent number: 9440900
    Abstract: A production method of ?,?-difluoroacetaldehyde according to the present invention includes reaction of an ?,?-difluoroacetic acid ester with hydrogen gas (H2) in the presence of a ruthenium catalyst. It is possible to selectively obtain ?,?-difluoroacetaldehyde as a partially reduced product of the hydrogenation reaction by the adoption of specific reaction conditions (in particular, reaction solvent and reaction temperature). This hydrogenation process can be alternative to the industrially unpractical hydride reduction process.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: September 13, 2016
    Assignee: Central Glass Company, Limited
    Inventors: Takashi Ootsuka, Mari Imamura, Akihiro Ishii, Koji Ueda, Shunsuke Mimura
  • Publication number: 20160237191
    Abstract: Provided is a water-insoluble N-vinylcarboxylic acid amide (co)polymer having crosslinked bonds, in which a vinylamine (co)polymer obtained by hydrolyzing the polymer is soluble in water.
    Type: Application
    Filed: November 7, 2014
    Publication date: August 18, 2016
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventor: Akihiro Ishii
  • Patent number: 9409843
    Abstract: A production method of a 1,1,1,5,5,5-hexafluoroacetylacetone hydrate according to the present invention includes: step 1: step 1: obtaining a reaction mixture that contains at least 1,1,1,5,5,5-hexafluoro-3-pentyn-2-one or an equivalent thereof by reaction of a 3,3,3-trifluoropropynyl metal with a trifluoroacetate; and step 2: forming the 1,1,1,5,5,5-hexafluoroacetylacetone hydrate by contact of the reaction mixture obtained in the step 1 with water in the presence of an acid. It is possible to produce 1,1,1,5,5,5-hexafluoroacetylacetone by dehydration of the thus-formed hydrate. Thus, the production method according to the present invention is industrially applicable.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: August 9, 2016
    Assignee: Central Glass Company, Limited
    Inventors: Takashi Ootsuka, Takashi Masuda, Akihiro Ishii, Mari Imamura, Shunsuke Mimura, Masato Kimura, Hiroshi Minesaki
  • Publication number: 20160208089
    Abstract: Provided is a precursor for producing polyvinylamine aqueous solution having high storage stability without any decrease in the viscosity of the precursor aqueous solution even with long-term storage when producing polyvinylamine aqueous solution. A powdered N-vinylcarboxamide polymer composition containing N-vinylcarboxamide polymer, the viscosity of an aqueous solution of polyvinylamine obtained by hydrolyzing the polymer being 1.0×106 mPa·s (25° C.) or lower and the content of azo initiator in the aqueous solution being from more than 0 parts by mass to 0.05 parts by mass per 100 parts by mass of polyvinylamine.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 21, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Akihiro ISHII, Yasuharu MORI
  • Publication number: 20160138059
    Abstract: A production method of an optically active fluorolactic derivative according to the present invention includes asymmetrically reducing a fluoropyruvic acid derivative (or fluoropyruvic acid hydrate) with the use of an ?-keto acid dehydrogenase or ?-keto acid reductase. The optically active fluorolactic derivative can be obtained with high optical purity under mild reaction conditions by the asymmetric reduction reaction of the fluoropyruvic acid derivative with the specific enzyme.
    Type: Application
    Filed: July 8, 2014
    Publication date: May 19, 2016
    Inventors: Naoki SAWAI, Shoko ISHII, Tetsuro NISHII, Akihiro ISHII
  • Publication number: 20160075626
    Abstract: A production method of a 1,1,1,5,5,5-hexafluoroacetylacetone hydrate according to the present invention includes: step 1: step 1: obtaining a reaction mixture that contains at least 1,1,1,5,5,5-hexafluoro-3-pentyn-2-one or an equivalent thereof by reaction of a 3,3,3-trifluoropropynyl metal with a trifluoroacetate; and step 2: forming the 1,1,1,5,5,5-hexafluoroacetylacetone hydrate by contact of the reaction mixture obtained in the step 1 with water in the presence of an acid. It is possible to produce 1,1,1,5,5,5-hexafluoroacetylacetone by dehydration of the thus-formed hydrate. Thus, the production method according to the present invention is industrially applicable.
    Type: Application
    Filed: April 2, 2014
    Publication date: March 17, 2016
    Applicant: Central Glass Company Limited
    Inventors: Takashi OOTSUKA, Takashi MASUDA, Akihiro ISHII, Mari IMAMURA, Shunsuke MIMURA, Masato KIMURA, Hiroshi MINESAKI
  • Patent number: 9284248
    Abstract: A production process of an ?-fluoroaldehyde according to the present invention includes reaction of an ?-fluoroester with hydrogen gas (H2) in the presence of a ruthenium complex. It is possible in the present invention to allow relatively easy industrial production of the ?-fluoroaldehyde and to directly obtain, as stable synthetic equivalents of the ?-fluoroaldehyde, not only a hydrate (as obtained by conventional techniques) but also a hemiacetal that is easy to purify and is of high value in synthetic applications. The present invention provides solutions to all problems in the conventional techniques and establishes the significantly useful process for production of the ?-fluoroaldehyde.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: March 15, 2016
    Assignee: Central Glass Company, Limited
    Inventors: Akihiro Ishii, Takashi Ootsuka, Mari Imamura, Takayuki Nishimiya, Kazuto Kimura
  • Publication number: 20150329455
    Abstract: A production method of ?,?-difluoroacetaldehyde according to the present invention includes reaction of an ?,?-difluoroacetic acid ester with hydrogen gas (H2) in the presence of a ruthenium catalyst. It is possible to selectively obtain ?,?-difluoroacetaldehyde as a partially reduced product of the hydrogenation reaction by the adoption of specific reaction conditions (in particular, reaction solvent and reaction temperature). This hydrogenation process can be alternative to the industrially unpractical hydride reduction process.
    Type: Application
    Filed: January 23, 2014
    Publication date: November 19, 2015
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Takashi OOTSUKA, Mari IMAMURA, Akihiro ISHII, Koji UEDA, Shunsuke MIMURA
  • Publication number: 20150259508
    Abstract: Provided is a method for efficiently producing on an industrial scale a high-performance polyvinylamine solution having good handling properties. After producing a polymer containing N-vinylcarboxamide monomer units having a value of the weight average molecular weight (Mw)/number average molecular weight (Mn) of 5 or higher by aqueous solution standing adiabatic polymerization, the polymer is hydrolyzed in an aqueous solvent in the presence of an alkali and an antigelling agent. In a preferred embodiment of the present invention, a polymer powder having a volatile content of 0.1-12% by mass is obtained by drying and pulverizing after producing a (co)polymer, and the powder obtained is stored or transported to the site of use of the polymer solution and hydrolyzed in an aqueous solvent in the presence of an alkali and an antigelling agent when the polymer solution is needed or at the site of use of the polymer solution.
    Type: Application
    Filed: October 31, 2013
    Publication date: September 17, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Akihiro Ishii, Yasuharu Mori
  • Patent number: 9085780
    Abstract: Disclosed is a method for producing (S)-1,1,1-trifluoro-2-propanol with high optical purity and high yield by having at least one kind of microorganism, which is selected from the group consisting of Hansenula polymorpha, Pichia anomala, Candida parapsilosis, Candida mycoderma, Pichia naganishii, Candida saitoana, Cryptococcus curvatus, Saturnospora dispora, Saccharomyces bayanus and Pichia membranaefaciens, act on 1,1,1-trifluoroacetone. Since microorganisms found in nature are made to act in a natural state, the problems to be raised when a transformant or the like is used can be avoided in this method. Consequently, the method can be easily put in industrial practice.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: July 21, 2015
    Assignees: Toyama Prefecture, Central Glass Company, Limited
    Inventors: Yasuhisa Asano, Kenichi Fuhshuku, Tetsuro Nishii, Akihiro Ishii
  • Publication number: 20150197473
    Abstract: A production process of an ?-fluoroaldehyde according to the present invention includes reaction of an ?-fluoroester with hydrogen gas (H2) in the presence of a ruthenium complex. It is possible in the present invention to allow relatively easy industrial production of the ?-fluoroaldehyde and to directly obtain, as stable synthetic equivalents of the ?-fluoroaldehyde, not only a hydrate (as obtained by conventional techniques) but also a hemiacetal that is easy to purify and is of high value in synthetic applications. The present invention provides solutions to all problems in the conventional techniques and establishes the significantly useful process for production of the ?-fluoroaldehyde.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Akihiro ISHII, Takashi OOTSUKA, Mari IMAMURA, Takayuki NISHIMIYA, Kazuto KIMURA
  • Patent number: 9040745
    Abstract: A production process of a fluorosulfuric acid aromatic-ring ester according to the present invention includes reaction of an aromatic-ring hydroxyl compound with sulfuryl fluoride (SO2F2) in the presence of a tertiary amine except pyridine and methylpyridine. The sulfuryl fluoride, used as the reactant in the production process according to the present invention, is widely adapted as a fumigant and is easily available on a large scale. Further, the target compound can be obtained rapidly with a high yield under moderate reaction conditions in the production process according to the present invention. In this way, all of the prior art problems can be solved in the production process according to the present invention. The production process according to the present invention is thus particularly useful for industrial production of the fluorosulfuric acid aromatic-ring ester.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: May 26, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Akihiro Ishii, Takehisa Ishimaru, Takako Yamazaki, Manabu Yasumoto
  • Patent number: 9024075
    Abstract: A production process of an ?-fluoroaldehyde according to the present invention includes reaction of an ?-fluoroester with hydrogen gas (H2) in the presence of a ruthenium complex. It is possible in the present invention to allow relatively easy industrial production of the ?-fluoroaldehyde and to directly obtain, as stable synthetic equivalents of the ?-fluoroaldehyde, not only a hydrate (as obtained by conventional techniques) but also a hemiacetal that is easy to purify and is of high value in synthetic applications. The present invention provides solutions to all problems in the conventional techniques and establishes the significantly useful process for production of the ?-fluoroaldehyde.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: May 5, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Akihiro Ishii, Takashi Ootsuka, Mari Imamura, Takayuki Nishimiya, Kazuto Kimura
  • Publication number: 20150120974
    Abstract: A first external tool (10A) serially connected to an electronic controller (20A) through a pair of communication lines (LANH, LANN) applies a high voltage (Vaa) higher than a normal control voltage (Vcc) to the communication line (LANH) when a program is written. The electronic controller (20A) recognizes connection of the first external tool (10A) by a comparison circuit (212A) for monitoring a received voltage and a write-mode determination circuit (218A), initializes a microprocessor (200), and receives and stores an total control program (TCPRG) in a program memory (204A) based on a content of a boot program memory (201). During an operation of the electronic controller (20A), the external tool (10A) is removed and the high voltage (Vaa) is not applied to the communication line (LANH). Therefore, the electronic control apparatus is not erroneously placed in the write mode.
    Type: Application
    Filed: April 8, 2014
    Publication date: April 30, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Mitsunori NISHIDA, Yuki IWAGAMI, Akihiro ISHII, Osamu NISHIZAWA, Manabu YAMASHITA
  • Publication number: 20140349185
    Abstract: A binder resin composition for secondary battery electrodes is described as containing a polymer (A) that has a structural unit represented by general formula (1) and a water-insoluble particulate polymer (B-1) and/or a water-soluble polymer (B-2) where (A), (B-1) and (B-2) are defined as described. A slurry for secondary battery electrodes contains the binder resin composition, an active material and a solvent. An electrode for secondary batteries is provided with a collector and an electrode layer that is arranged on the collector, where the electrode layer contains an active material and the binder resin composition. Alternatively, the electrode layer is obtained by applying the slurry for secondary battery electrodes to the collector, and drying the slurry thereon.
    Type: Application
    Filed: January 11, 2013
    Publication date: November 27, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Fumino Momose, Haruki Okada, Ayako Shimonaka, Mitsufumi Nodono, Daisuke Fujikawa, Hikaru Momose, Akihiro Ishii
  • Publication number: 20140287308
    Abstract: A binder resin for a nonaqueous secondary battery electrode of the invention satisfies Is?30 (Is indicates a sum of scattering intensities observed in a particle size range of from 1 to 100 nm) when a solution is formed by dissolving the binder resin in water at a concentration of 5% by mass and particle size distribution is measured by a dynamic light scattering method at 25° C. The binder resin contains a polymer (B) having a structural unit represented by the following Formula (11) and a specific structural unit. The binder resin also contains a polymer (?) having a specific structural unit and a structural unit represented by the following Formula (22), and/or a mixture of a polymer (?1) having a specific structural unit and a polymer (?2) having a structural unit represented by the following Formula (22).
    Type: Application
    Filed: November 30, 2012
    Publication date: September 25, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Haruki Okada, Mitsufumi Nodono, Hikaru Momose, Fumino Momose, Fumiko Fujie, Akikazu Matsumoto, Daisuke Fujikawa, Ayako Shimonaka, Akihiro Ishii
  • Patent number: 8835669
    Abstract: Fluorosulfuric acid esters can be produced by reacting alcohols with sulfuryl fluoride (SO2F2) in the presence of a base and water. As a substrate thereof, optically active secondary alcohols are preferable, and optically active ?-hydroxyesters and optically active 4-hydroxyprolines are particularly preferable. By performing the reaction in a two-phase system in the presence of a reaction solvent immiscible with water, a desired reaction proceeds particularly well. The present invention is a production method solving all the problems involved in conventional techniques while being industrially practicable.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: September 16, 2014
    Assignee: Central Glass Company, Limited
    Inventors: Akihiro Ishii, Manabu Yasumoto
  • Patent number: 8809557
    Abstract: Disclosed is a method of producing an optically active fluorinated oxetane, which can be an important pharmaceutical or agricultural intermediate, by reaction of a fluorinated ?-keto ester with an acyl alkenyl ether in the presence of a transition metal complex with an optically active ligand. This method utilizes a catalytic asymmetric synthesis process and does not require a stoichiometric amount of chiral source. It is thus possible to dramatically reduce the amount of use of the asymmetric catalyst especially when the reaction is performed at a high concentration of substrate (with the use of a small amount of reaction solvent) or in the absence of a reaction solvent (under neat conditions). Further, the target optically active fluorinated oxetane can be obtained with high yield and with very high optical purity. The product contains almost no difficult-to-separate impurity and shows high chemical purity.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: August 19, 2014
    Assignees: Central Glass Company, Limited, Tokyo Institute of Technology
    Inventors: Koichi Mikami, Kohsuke Aikawa, Junpei Aida, Akihiro Ishii, Misugi Kato, Takashi Masuda