Patents by Inventor Kenichi Ishizuka

Kenichi Ishizuka 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: 9498755
    Abstract: A gas separation membrane containing a support and a separating layer formed on the support, the separating layer containing a main body and a hydrophilic layer; the main body being disposed on the side of the support; the hydrophilic layer being disposed on the far side of the support and containing a hydrophilic polymer.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: November 22, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Kenichi Ishizuka, Shigehide Itou
  • Patent number: 9457319
    Abstract: An acidic gas separation laminate including: a porous support formed by laminating a porous film and an auxiliary support film; an acidic gas separation facilitated transport film; a permeating gas channel member; a sealing unit which is formed by impregnating the porous film, the auxiliary support film, and the gas channel member with an adhesive in the lamination direction thereof along the peripheral edge at a width of 5 mm or greater such that the permeation rate becomes 60% or greater; and a stress buffer unit which is adjacent to the sealing unit, has a permeation rate of the adhesive of less than 60% at least in the porous film, and is formed by impregnating at least the gas channel member with the adhesive.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 4, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Takeshi Narita, Kenichi Ishizuka
  • Patent number: 9452384
    Abstract: An acidic gas separation laminate includes a composite film formed of a porous support which is formed by laminating a porous film and an auxiliary support film and an acidic gas separation facilitated transport film which is disposed on the porous film side of the porous support; a permeating gas channel member which is laminated so as to face the auxiliary support film of the porous support and in which acidic gas permeated and passed through the acidic gas separation facilitated transport film flows; and a film protection unit in which an adhesive becomes impregnated into the porous film at an impregnation rate of 10% or greater in the lamination direction of the porous support and the impregnation rate of the adhesive in the auxiliary support film is smaller than the impregnation rate of the adhesive in the porous film.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: September 27, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Takeshi Narita, Kenichi Ishizuka, Ryo Ouchi, Makoto Sawada
  • Publication number: 20160248397
    Abstract: Coil openings of a primary side coil element of a first transformer, a secondary side coil element of the first transformer, a primary side coil element of a second transformer, and a secondary side coil element of the second transformer overlap with one another when viewed from above in a lamination direction. The primary side coil element of the first transformer and the primary side coil element of the second transformer are connected in parallel, and the secondary side coil element of the first transformer and the secondary side coil element of the second transformer are connected in parallel. An impedance conversion ratio is defined in accordance with a lamination order of the primary side coil element and the secondary side coil element of the first transformer with respect to a lamination order of the primary side coil element and the secondary side coil element of the second transformer within a multilayer body.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Inventor: Kenichi ISHIZUKA
  • Publication number: 20160248450
    Abstract: In a transformer, first and second coils are provided on different substrate layers of a multilayer body. The first and second coil conductors are interlayer-connected to each other by interlayer connection conductors. A coil aperture defined by the first coil conductor and a coil aperture defined by the second coil conductor overlap each other when seen in a plan view from a laminating direction of the multilayer body. The first and second coil conductors are connected to each other at at least two places with the interlayer connection conductors interposed therebetween. A parallel connection portion including a first portion of the first coil conductor and a first portion of the second coil conductor is provided, and a series connection portion including a second portion of the first coil conductor and a second portion of the second coil conductor is provided.
    Type: Application
    Filed: May 3, 2016
    Publication date: August 25, 2016
    Inventor: Kenichi ISHIZUKA
  • Publication number: 20160240924
    Abstract: An impedance converter circuit includes a transformer with a primary coil connected to a power feed port, a phase shifter circuit connected between a secondary coil of the transformer and an antenna port, and a bypass circuit connected between the power feed port and the antenna port. In a high band, an absolute value of impedance of the transformer viewed from the antenna port via the phase shifter circuit is higher than an absolute value of impedance of the bypass circuit. In a low band, the absolute value of the impedance of the transformer viewed from the antenna port via the phase shifter circuit is lower than the absolute value of the impedance of the bypass circuit.
    Type: Application
    Filed: April 25, 2016
    Publication date: August 18, 2016
    Inventor: Kenichi ISHIZUKA
  • Publication number: 20160220966
    Abstract: Provided is a gas separation membrane 10 including a separation layer 1 which comprises a block copolymer having at least a first segment and a second segment, in which the separation layer 1 has a phase separation structure that has at least a first structure 11 derived from the first segment and a spherical second structure 12 derived from the second segment. The gas separation membrane in which the spherical second structure satisfies Formula 1, the first structure and the spherical second structure satisfy the following Formula 2, and the first structure 11 has a structure that is continuous in the thickness direction over the entire thickness of the separation layer 1 has high gas permeability and high gas separation selectivity. Also provided is a gas separation membrane module. R/L<0.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Kenji KANO, Kenichi ISHIZUKA, Satoshi SANO
  • Publication number: 20160195707
    Abstract: An eyepiece lens system having a large amount of allowable eccentricity. This eyepiece system forms a magnified virtual image of an observation object, and the eyepiece system has a horizontal angle of view of 40 degrees or more. The maximum amount of eccentricity S that makes the proportion of the amount of change, ? mm, in tangential field curvature in the amount of eccentricity, S mm, between the optical axis Ax and an observer's eye satisfy Condition (1), namely, ?0.25<?/S<0, at all image heights is 3 mm or more.
    Type: Application
    Filed: August 5, 2014
    Publication date: July 7, 2016
    Applicants: RICOH INDUSTRIAL SOLUTIONS INC., SONY CORPORATION
    Inventors: Kenichi ISHIZUKA, Kamon UEMURA
  • Publication number: 20160182003
    Abstract: An impedance conversion circuit includes an auto-transformer circuit including a first inductor connected between a first port connected on a power supply portion side and a second port connected on an antenna side and a second inductor connected between a third port that is grounded and the second port; a first phase shifter with a first end connected to the first port; an inductor connected in series between a second end of the first phase shifter and the power supply portion; and a capacitor connected in series to the inductor and connected in series between the second end of the first phase shifter and the power supply portion.
    Type: Application
    Filed: March 1, 2016
    Publication date: June 23, 2016
    Inventors: Yuichiro TESHIMA, Kenichi ISHIZUKA
  • Publication number: 20160151740
    Abstract: In a spiral type acidic-gas separation module which is obtained by winding a laminate including an acidic gas separation layer that includes a facilitated transport film, a permeating gas channel member which includes a channel regulation member regulating an acidic gas channel that is a channel of an acidic gas having permeated through the facilitated transport film allows a difference in high-pressure deformation amount between a region where the channel regulation member is formed and a region other than the region to be set to 100 ?m or less. In this manner, an acidic-gas separation module which prevents damage to the facilitated transport film and exhibits a predetermined performance for a long period of time is provided.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Ryo OUCHI, Makoto SAWADA, Daisuke HIRAKI, Takeshi NARITA, Kenichi ISHIZUKA
  • Publication number: 20160136580
    Abstract: An acidic gas separation laminate including: a porous support formed by laminating a porous film and an auxiliary support film; an acidic gas separation facilitated transport film; a permeating gas channel member; a sealing unit which is formed by impregnating the porous film, the auxiliary support film, and the gas channel member with an adhesive in the lamination direction thereof along the peripheral edge at a width of 5 mm or greater such that the permeation rate becomes 60% or greater; and a stress buffer unit which is adjacent to the sealing unit, has a permeation rate of the adhesive of less than 60% at least in the porous film, and is formed by impregnating at least the gas channel member with the adhesive.
    Type: Application
    Filed: January 26, 2016
    Publication date: May 19, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Takeshi NARITA, Kenichi ISHIZUKA
  • Publication number: 20160136572
    Abstract: An acidic gas separation laminate includes a composite film formed of a porous support which is formed by laminating a porous film and an auxiliary support film and an acidic gas separation facilitated transport film which is disposed on the porous film side of the porous support; a permeating gas channel member which is laminated so as to face the auxiliary support film of the porous support and in which acidic gas permeated and passed through the acidic gas separation facilitated transport film flows; and a film protection unit in which an adhesive becomes impregnated into the porous film at an impregnation rate of 10% or greater in the lamination direction of the porous support and the impregnation rate of the adhesive in the auxiliary support film is smaller than the impregnation rate of the adhesive in the porous film.
    Type: Application
    Filed: January 27, 2016
    Publication date: May 19, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Takeshi NARITA, Kenichi ISHIZUKA, Ryo OUCHI, Makoto SAWADA
  • Patent number: 9323040
    Abstract: An eyepiece lens system forms a magnified virtual image of an object to be observed, the system including: a first group disposed adjacent to an image display device and having negative refractive power; and a second group disposed adjacent to the first group on a side closer to an eye and having positive refractive power; the first group including a cemented doublet lens of a biconcave lens and a biconvex lens, the second group including two or three positive lenses, being telecentric on the object side. The eyepiece lens system has satisfactory telecentricity on the object side and satisfactorily corrects aberration.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: April 26, 2016
    Assignees: RICOH INDUSTRIAL SOLUTIONS INC., SONY CORPORATION
    Inventor: Kenichi Ishizuka
  • Patent number: 9298873
    Abstract: To design an impedance transformation circuit, a transformer ratio of a transformer circuit is determined according to an impedance ratio. A coupling coefficient between a first inductance element and a second inductance element, an inductance of the first inductance element, and an inductance of the second inductance element are determined. A shape of the second inductance element is determined. A shape of the first inductance element is determined such that the first inductance element includes at least two layers of loop conductors, and an interlayer distance between the loop conductors is determined such that an inductance value of the first inductance element is a desired value.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: March 29, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kenichi Ishizuka, Toshiyuki Nakaiso, Hiroshi Nishida
  • Patent number: 9287629
    Abstract: In a case in which a capacitor is not provided in parallel with a second inductance element, the impedance ratio between a first inductance element and the second inductance element is constant regardless of the frequency, but when a capacitor is provided, the parallel impedance of the capacitor and the second inductance element gradually increases at frequencies equal to and below the resonant frequency. Consequently, at frequencies equal to or below the resonant frequency, the higher the frequency becomes, the larger the value of the real portion of the impedance observed on a high-frequency-circuit side becomes. Therefore, by appropriately setting the values of the first inductance element, the second inductance element, and the capacitor, the frequency characteristics of the real portion of the impedance observed on the high-frequency-circuit side can be set to be similar to the frequency characteristics of the radiation resistance of the antenna.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 15, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Noboru Kato, Kenichi Ishizuka, Noriyuki Ueki
  • Patent number: 9272248
    Abstract: A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked and linked, and the polyimide compound is a copolymer having at least an imide group-containing monomer component and a monomer component having a specific polar group; and a module, a gas separation apparatus and a gas separation method using the same.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 1, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Sano, Ichirou Nagata, Tomonori Ishino, Kentaro Shiratsuchi, Shigehide Itou, Kenichi Ishizuka, Takeshi Umehara
  • Patent number: 9264011
    Abstract: An antenna device includes an impedance-matching switching circuit connected to a feeding circuit, and a radiating element. The impedance-matching switching circuit matches the impedance of the radiating element as a second high frequency circuit element and the impedance of the feeding circuit as a first high frequency circuit element. The impedance-matching switching circuit includes a transformer matching circuit and a series active circuit. The transformer matching circuit matches the real parts of the impedance and matches the imaginary parts of the impedance in the series active circuit. Thus, impedance matching is performed over a wide frequency band at a point at which high frequency circuits or elements having different impedances are connected to each other.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: February 16, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenichi Ishizuka, Noriyuki Ueki, Noboru Kato, Koji Shiroki
  • Patent number: 9248413
    Abstract: A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin is formed by a polyimide compound being crosslinked by a radically crosslinkable functional group thereof, and a ratio [?] of a crosslinked site to an imide group of the polyimide compound (the number of crosslinked sites/the number of imide groups) in the crosslinked polyimide resin is 0.0001 or more and 0.45 or less; a method of producing the same; and a gas separating module, a gas separation apparatus and a gas separation method using the same.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: February 2, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Sano, Ichirou Nagata, Tomonori Ishino, Kentaro Shiratsuchi, Shigehide Itou, Kenichi Ishizuka, Takeshi Umehara
  • Patent number: 9238204
    Abstract: A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked through a specific crosslinking chain, the specific crosslinking chain has at least one kind of linking group selected from the group consisting of —NRaC(?O)—, —NRbC(?O)O—, —CH2OCH2—, —CH2SCH2—, —OC(?O)O—, —C(?O)O?N+(Rc)3—, —SO3?N+(Rd)3— and —PO3?N+(Re)3—, and Ra, Rb, Rc, Rd and Re each independently represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: January 19, 2016
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Sano, Tomonori Ishino, Ichirou Nagata, Kentaro Shiratsuchi, Shigehide Itou, Kenichi Ishizuka, Takeshi Umehara
  • Publication number: 20150371762
    Abstract: In a laminated coil component, first coil conductor patterns define a coil opening that generates a magnetic flux in a first direction, second coil conductor patterns define a first coil opening that generates a magnetic flux in the first direction, and a second coil opening that generates a magnetic flux in a second direction. A difference in area between the first coil opening and the second coil opening determines a degree of coupling of the coil defined by the first coil conductor pattern and the coil defined by the second coil conductor pattern. This provides a close proximal arrangement of a plurality of coils proximally while significantly reducing or preventing unnecessary coupling between the coils.
    Type: Application
    Filed: September 1, 2015
    Publication date: December 24, 2015
    Inventor: Kenichi ISHIZUKA