Patents by Inventor Akira Tsujimoto

Akira Tsujimoto 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: 10412848
    Abstract: A power supply device 1 includes a main circuit board 20, a power component 22 connected to the main circuit board 20, a filter component 24 connected to the main circuit board 20, and a casing 10 which houses the main circuit board 20, the power component 22, and the filter component 24. The casing 10 includes a base plate 11 which includes a flat surface 11a in which a fin 14 for heat dissipation is provided on a bottom-surface side, and a protruding part 15 which protrudes from the flat surface toward the fin. The power component 22 and the main circuit board 20 are placed on the flat surface, and the filter component 24 is housed in the protruding part 15.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: September 10, 2019
    Assignee: TDK CORPORATION
    Inventors: Kengo Tsujimoto, Kouji Utsui, Akira Ikezawa
  • Patent number: 10359155
    Abstract: A light-emitting apparatus includes an excitation light source that emits first light; a light-emitting device on an optical path of the first light, the light-emitting device emitting second light having a wavelength in air; and a first converging lens on an optical path of the second light. The light-emitting device comprises: a photoluminescent layer that emits the second light by being excited by the first light; and a light-transmissive layer on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a surface structure comprising projections or recesses arranged perpendicular to a thickness direction of the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface perpendicular to the thickness direction, the second light emitted from the light emitting surface. The surface structure limits the directional angle of the second light emittied from the light emitting surface.
    Type: Grant
    Filed: July 10, 2016
    Date of Patent: July 23, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Taku Hirasawa, Yasuhisa Inada, Akira Hashiya, Nobuaki Nagao, Akira Tsujimoto
  • Publication number: 20170098490
    Abstract: A base material with a transparent conductive film on or above the base material is provided. The transparent conductive film includes a conductive layer; and a protective layer being located on a side of the conductive layer and containing a first resin, the side not opposing to the base material. The transparent conductive film includes a conductive portion and a non-conductive portion in a plan view. The conductive layer contains no metal wires in the conductive portion or contains less metal wires per unit area in the non-conductive portion than the conductive layer contains the metal wires per unit area in the conductive portion. The protective layer contains a particle in the conductive portion, and includes an aperture penetrating the first resin in a thickness direction in the non-conductive portion. The particle is soluble in an acidic etching solution, and the first resin is resistant to the acidic etching solution.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventors: AKIRA TSUJIMOTO, TAKASHI ICHIRYU, KAZUMA MIMA
  • Publication number: 20170051885
    Abstract: A light-emitting apparatus includes an excitation light source that emits first light; a light-emitting device on an optical path of the first light, the light-emitting device emitting second light having a wavelength in air; and a first converging lens on an optical path of the second light. The light-emitting device comprises: a photoluminescent layer that emits the second light by being excited by the first light; and a light-transmissive layer on the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a surface structure comprising projections or recesses arranged perpendicular to a thickness direction of the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a light emitting surface perpendicular to the thickness direction, the second light emitted from the light emitting surface. The surface structure limits the directional angle of the second light emittied from the light emitting surface.
    Type: Application
    Filed: July 10, 2016
    Publication date: February 23, 2017
    Inventors: TAKU HIRASAWA, YASUHISA INADA, AKIRA HASHIYA, NOBUAKI NAGAO, AKIRA TSUJIMOTO
  • Patent number: 9247641
    Abstract: A substrate with a transparent conductive layer (1) of the present invention includes a substrate (11) and a transparent conductive layer (12) disposed on the substrate (11). The transparent conductive layer (12) has a conductive region (13) and a non-conductive region (14). The conductive region (13) contains conductive fine particles (121) and a resin matrix (122). The non-conductive region (14) contains conductive fine particles (123) and the resin matrix (122). A haze value in the non-conductive region (14) is larger than a haze value in the conductive region (13).
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: January 26, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akihiko Tadamasa, Akira Tsujimoto, Taisuke Matsui, Eri Yasuhara
  • Publication number: 20150255186
    Abstract: A aspect of the present disclosure provides a base material with a transparent conductive film on or above the base material. The transparent conductive film includes a conductive layer containing metal wires, and a protective layer being located on a side of the conductive layer and containing a resin and a particle, the side not opposing to the base material. The particle is soluble in an acidic etching solution, and the resin is resistant to the acidic etching solution.
    Type: Application
    Filed: February 20, 2015
    Publication date: September 10, 2015
    Inventors: AKIRA TSUJIMOTO, TAKASHI ICHIRYU, KAZUMA MIMA
  • Patent number: 9017807
    Abstract: A transparent conductive film includes a first transparent resin layer including a plurality of thin metallic wires, a second transparent resin layer containing a conductive polymer, and a third transparent resin layer provided between the first transparent resin layer and the second transparent resin layer. The second transparent resin layer contains a resin which is soluble in water, and the third transparent resin layer contains a resin which is insoluble in water or has water resistance. The third transparent resin layer can suppress mixing of the second transparent resin layer with the first transparent resin layer and can make the second transparent resin layer less likely to be damaged by the first transparent resin layer. Therefore, a surface of the second transparent resin layer is made smooth and electrical conductivity is made uniform.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akira Tsujimoto, Taisuke Matsui, Hiroshi Yokogawa
  • Publication number: 20150027755
    Abstract: Provided is a transparent conductive film wherein an electrically conductive region is converted to an electrically insulating region more readily and rapidly than traditional conductive films and the level difference between the electrically conductive region and the electrically insulating region is smaller. The transparent conductive film has an electrically conductive region 4 and an electrically insulating region 5. The electrically conductive region 4 contains a resin component 10, a metal nanowire 2 and an insulation-promoting component 3. The insulation-promoting component 3 has a light absorption higher than that of the metal nanowire 2. The electrically insulating region 5 is defined by a region which contains a resin component 10 but not the metal nanowire 2 or a region which contains a resin component 10 and additionally a metal nanowire 2 having an aspect ratio of smaller than that of the metal nanowire 2.
    Type: Application
    Filed: December 11, 2012
    Publication date: January 29, 2015
    Applicant: Panasonic Corporation
    Inventors: Akira Tsujimoto, Akihiko Tadamasa, Taisuke Matsui, Eri Yasuhara
  • Publication number: 20150008416
    Abstract: A substrate with a transparent conductive layer 1 of the present invention includes a substrate 11 and a transparent conductive layer 12 disposed on the substrate 11. The transparent conductive layer 12 has a conductive region 13 and a non-conductive region 14. The conductive region 13 contains conductive fine particles 121 and a resin matrix 122. The non-conductive region 14 contains conductive fine particles 123 and the resin matrix 122. A haze value in the non-conductive region 14 is larger than a haze value in the conductive region 13.
    Type: Application
    Filed: October 30, 2012
    Publication date: January 8, 2015
    Inventors: Akihiko Tadamasa, Akira Tsujimoto, Taisuke Matsui, Eri Yasuhara
  • Publication number: 20130122279
    Abstract: A transparent conductive film includes a first transparent resin layer including a plurality of thin metallic wires, a second transparent resin layer containing a conductive polymer, and a third transparent resin layer provided between the first transparent resin layer and the second transparent resin layer. The second transparent resin layer contains a resin which is soluble in water, and the third transparent resin layer contains a resin which is insoluble in water or has water resistance. The third transparent resin layer can suppress mixing of the second transparent resin layer with the first transparent resin layer and can make the second transparent resin layer less likely to be damaged by the first transparent resin layer. Therefore, a surface of the second transparent resin layer is made smooth and electrical conductivity is made uniform.
    Type: Application
    Filed: February 7, 2012
    Publication date: May 16, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Akira Tsujimoto, Taisuke Matsui, Hiroshi Yokogawa
  • Patent number: 8273811
    Abstract: A coating material composite, comprising containing: a silane compound represented by the general formula (A); and an epoxy group-containing organic compound containing one or more epoxy groups in each molecule; wherein the silane compound has a content of 60 to 97% by weight relative to a total amount of resin components; and wherein the epoxy group-containing organic compound has a content of 3 to 10% by weight relative to the total amount of resin components; XmR13?mSi—Y—SiR13?mXm??(A) [R1 is a monovalent hydrocarbon group having a carbon number of 1 to 6; Y is a divalent organic group containing one or more fluorine atoms; X is a hydrolytic group; and m is an integer of 1 to 3]. The coating formed by such a coating material composite is capable of keeping a higher anticrack property even upon exposure to high-temperature.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 25, 2012
    Assignee: Panasonic Corporation
    Inventors: Akira Tsujimoto, Ryozo Fukuzaki, Takeyuki Yamaki, Hiroshi Yokogawa
  • Patent number: 7964251
    Abstract: A liquid crystal display device of an in-plane switching mode comprises a pair of polarizing plates which are constituted with a polarizing plate at the output side comprising a polarizer at the output side and a polarizing plate at the incident side comprising a polarizer at the incident side having a transmission axis approximately perpendicular to a transmission axis of the polarizer at the output side and two or more sheets of optically anisotropic members and liquid crystal cells disposed between the pair of polarizing plates. The device exhibits excellent scratch resistance and excellent quality of black depth and uniform and high contrast in viewing at any angles.
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: June 21, 2011
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Takeyuki Yamaki, Hiroshi Yokogawa, Akira Tsujimoto, Ryozo Fukuzaki, Tetsuya Toyoshima, Masanori Yoshihara, Kohei Arakawa
  • Patent number: 7854508
    Abstract: A plastic lens includes: a plastic lens base material; a hard coat layer formed on the plastic lens base material; an organic antireflection film formed on the hard coat layer; and a primer layer between the plastic lens base material and the hard coat layer. The plastic lens base material contains at least a sulfur atom. The hard coat layer contains at least: fine metal oxide particles containing a titanium oxide having a rutile-type crystalline structure; and an organosilicon compound represented by a general formula of R1SiX13. The antireflection film contains a coating composition containing at least: an organosilicon compound represented by a general formula of XmR23?mSi—Y—SiR23?mXm; an epoxy group-containing organic compound containing one or more epoxy group in a molecule; and fine silica particles with average particle size of 1 to 150 nm, the antireflection film having a refractive index lower than that of the hard coat layer by 0.10 or more.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: December 21, 2010
    Assignees: Seiko Epson Corporation, Panasonic Electric Works Co., Ltd.
    Inventors: Mikito Nakajima, Katsuyoshi Takeshita, Yusuke Kutsukake, Jun Kinoshita, Shuji Naito, Koichi Takahama, Hiroshi Yokogawa, Takeyuki Yamaki, Akira Tsujimoto, Ryozo Fukuzaki
  • Patent number: 7582351
    Abstract: There is provided a composite thin film-holding substrate in which a composite thin film (4) comprising a filler (2) having a refractive index lower than that of a substrate (1) and a binder (3) having a refractive index higher than that of the filler (2) is formed on a surface of the substrate (1). Light is efficiently scattered when passing through the composite thin film (3) which comprises the filler (2) and the binder (3) having different refractive indexes from each other. In addition, the refractive index of a composite thin film (4) comprising a filler (2) having a low refractive index is low. As a result, the discharge efficiency of light which passes through the composite thin film (4) from the substrate (1) to the external is improved.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: September 1, 2009
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Hiroshi Yokogawa, Masaru Yokoyama, Kenji Kawano, Norihiro Itou, Koichi Takahama, Takeyuki Yamaki, Akira Tsujimoto, Yasuhisa Kishigami, Nobuhiro Ide
  • Patent number: 7556366
    Abstract: A joint member is made of an elastic member whose cross sectional shape is an almost M-character shape and which has: an inserting portion formed with an opening portion and a slit; an outer edge portion as an outer peripheral portion of the joint member; and a supporting fixing portion for coupling the inserting portion and the outer edge portion on the upper portion side. A cross sectional shape of an opening of the opening portion is a shape of a circular cone frustum in which the opening and a bottom surface are coupled via an inclined surface. The slit is formed in the rectangular bottom surface. The joint member is sandwiched between a casing and a pressing plate. The inserting portion and the supporting fixing portion exist in planes which are different in the inserting direction of a liquid supply needle.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: July 7, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyomitsu Kudo, Junji Shimoda, Akira Tsujimoto, Satoshi Kudo, Toru Suzuki
  • Patent number: 7552997
    Abstract: An ink cartridge which is detachably mountable to an ink cartridge mounting portion of a recording device, the recording device having an ink jet recording head which is provided with a head side connecting portion which functions upon intermittent ink filling, the ink cartridge being provided with a cartridge side connecting portion which is connectable with the head side connecting portion, and the ink cartridge being capable of containing ink to be supplied through the cartridge side connecting portion, the ink cartridge includes a power receiving portion, wherein an intermittent connection between the head side connecting portion and the cartridge side connecting portion is effected using rotation, the receiving portion being effective to receive power for the rotation; wherein the power receiving portion and the cartridge side connecting portion are disposed in a region adjacent one end portion of the ink cartridge.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: June 30, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Suzuki, Junji Shimoda, Akira Tsujimoto, Kiyomitsu Kudo
  • Publication number: 20090040457
    Abstract: A plastic lens includes: a plastic lens base material; a hard coat layer formed on the plastic lens base material; an organic antireflection film formed on the hard coat layer; and a primer layer between the plastic lens base material and the hard coat layer. The plastic lens base material contains at least a sulfur atom. The hard coat layer contains at least: fine metal oxide particles containing a titanium oxide having a rutile-type crystalline structure; and an organosilicon compound represented by a general formula of R1SiX13. The antireflection film contains a coating composition containing at least: an organosilicon compound represented by a general formula of XmR23-mSi—Y—SiR23-mXm; an epoxy group-containing organic compound containing one or more epoxy group in a molecule; and fine silica particles with average particle size of 1 to 150 nm, the antireflection film having a refractive index lower than that of the hard coat layer by 0.10 or more.
    Type: Application
    Filed: September 15, 2006
    Publication date: February 12, 2009
    Applicants: Seiko Epson Corporation, Matsushita Electric Works, Ltd.
    Inventors: Mikito Nakajima, Katsuyoshi Takeshita, Yusuke Kutsukake, Jun Kinoshita, Shuji Naito, Koichi Takahama, Hiroshi Yokogawa, Takeyuki Yamaki, Akira Tsujimoto, Ryozo Fukuzaki
  • Publication number: 20090043025
    Abstract: It is aimed at providing a coating material composite capable of having a lower refractive index and keeping higher antiscratching property, antifouling property, chemical resistance, and anticrack property even when the coating material composite is used to form a coating on a malleable substrate such as plastic substrates and exposed to high temperatures upon formation of the coating and after formation of the coating.
    Type: Application
    Filed: February 28, 2006
    Publication date: February 12, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Akira Tsujimoto, Ryozo Fukuzaki, Takeyuki Yamaki, Hiroshi Yokogawa
  • Patent number: 7469992
    Abstract: The present invention makes it possible to improve the alignment accuracy of the joint section of an ink cartridge with an ink supply route of an inkjet head. Based on this, the present invention provides an ink cartridge capable of preventing ink leakage with high reliability and constructed inexpensively in a reduced size and particularly suitable for a pit-in system. To attain this, distance (L1) is set to be shorter than distance (L2), where the distance (L1) is the one between a joint section (145) positioned in the proximity of a front surface (1A) of an ink cartridge (1) and an engage reference portion (135) serving as a reference position when the ink cartridge (1) is installed in the inkjet printing apparatus; and the distance (L2) is the one between the front surface (1A) of the ink cartridge (1) and the engage reference portion (135).
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 30, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Suzuki, Kiyomitsu Kudo, Satoshi Kudo, Akira Tsujimoto
  • Publication number: 20080316404
    Abstract: A vertical alignment (VA) mode liquid crystal display unit having at least one biaxial optical anisotropic substance sheet and a liquid crystal cell between a light emission side polarizing polarizer and a light incident side polarizer, wherein (1) nx>ny>nz is satisfied (nx and ny: in-plane principal refractive indexes of the entire biaxial optical anisotropy, and nz: a principal refractive index in the thickness direction), (2) the low refractive index layer comprises an aerogel with a refractive index of up to 1.7, and (3) a multilayered body consisting of the total biaxial optical anisotropic substance sheet and the liquid crystal cell satisfies the formula: |R40?R0|?35 nm where R0: a retardation as measured without imposition of voltage when light with wavelength of 550 nm impinges vertically, and R40: a retardation as measured without imposition of voltage when light with wavelength of 550 nm impinges at an inclination angle of 40 degrees from the normal to the direction of the principal axis.
    Type: Application
    Filed: December 21, 2005
    Publication date: December 25, 2008
    Applicants: Matsushita Electric Works, Ltd., Zeon Corporation
    Inventors: Takeyuki Yamaki, Hiroshi Yokogawa, Akira Tsujimoto, Ryozo Fukuzaki, Tetsuya Toyoshima, Masanori Yoshihara, Kohei Arakawa