Patents by Inventor Nobuyuki Ushifusa

Nobuyuki Ushifusa 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: 9223228
    Abstract: There is provided a pattern forming apparatus which transfers a paste to a predetermined position of a pattern forming object fixed to a table through a pattern forming mask having opening portions at predetermined positions using a discharge mechanism part. To realize a pattern forming which allows the stable forming of a fine pattern with high accuracy and allows the paste to be surely filled into fine through holes, a corner portion of a distal end of the discharge mechanism part in contact with the pattern forming mask is formed into a concave shape, and a surface of the distal end portion of the discharge mechanism part including the concave shaped portion is covered with a film having liquid repellency so that the rolling of the paste is accelerated in a region formed by the concave shaped portion to form a fine pattern with high accuracy.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: December 29, 2015
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Nobuyuki Ushifusa, Naohito Uemura, Shigeru Suzuki
  • Publication number: 20150015867
    Abstract: There is provided a pattern forming apparatus which transfers a paste to a predetermined position of a pattern forming object fixed to a table through a pattern forming mask having opening portions at predetermined positions using a discharge mechanism part. To realize a pattern forming which allows the stable forming of a fine pattern with high accuracy and allows the paste to be surely filled into fine through holes, a corner portion of a distal end of the discharge mechanism part in contact with the pattern forming mask is formed into a concave shape, and a surface of the distal end portion of the discharge mechanism part including the concave shaped portion is covered with a film having liquid repellency so that the rolling of the paste is accelerated in a region formed by the concave shaped portion to form a fine pattern with high accuracy.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: Nobuyuki USHIFUSA, Naohito UEMURA, Shigeru SUZUKI
  • Patent number: 8846439
    Abstract: There is provided a pattern forming apparatus which transfers a paste to a predetermined position of a pattern forming object fixed to a table through a pattern forming mask having opening portions at predetermined positions using a discharge mechanism part. To realize a pattern forming which allows the stable forming of a fine pattern with high accuracy and allows the paste to be surely filled into fine through holes, a corner portion of a distal end of the discharge mechanism part in contact with the pattern forming mask is formed into a concave shape, and a surface of the distal end portion of the discharge mechanism part including the concave shaped portion is covered with a film having liquid repellency so that the rolling of the paste is accelerated in a region formed by the concave shaped portion to form a fine pattern with high accuracy.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 30, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Nobuyuki Ushifusa, Naohito Uemura, Shigeru Suzuki
  • Publication number: 20130316492
    Abstract: There is provided a pattern forming apparatus which transfers a paste to a predetermined position of a pattern forming object fixed to a table through a pattern forming mask having opening portions at predetermined positions using a discharge mechanism part. To realize a pattern forming which allows the stable forming of a fine pattern with high accuracy and allows the paste to be surely filled into fine through holes, a corner portion of a distal end of the discharge mechanism part in contact with the pattern forming mask is formed into a concave shape, and a surface of the distal end portion of the discharge mechanism part including the concave shaped portion is covered with a film having liquid repellency so that the rolling of the paste is accelerated in a region formed by the concave shaped portion to form a fine pattern with high accuracy.
    Type: Application
    Filed: March 18, 2013
    Publication date: November 28, 2013
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Nobuyuki USHIFUSA, Naohito UEMURA, Shigeru SUZUKI
  • Publication number: 20100277450
    Abstract: A display device includes a first substrate having a display area with a plurality of pixels on a main surface and a first seal area formed at a periphery of the display area, and a second substrate disposed to cover the main surface of the first substrate, and having a second seal area at a part of the second substrate opposite to the first seal area. At least one driving circuit is arranged outside of the display area on the first substrate. The second substrate has a recessed portion formed at a part of the main surface of the second substrate within the second seal area, and a film coats the recessed portion and/or an outside of the second substrate. A moisture absorbent layer is arranged in the recessed portion so as to be adhered to the recessed portion or the film when the film coats the recessed portion.
    Type: Application
    Filed: July 14, 2010
    Publication date: November 4, 2010
    Inventors: Issei TAKEMOTO, Eiji MATSUZAKI, Yuji MORI, Nobuyuki USHIFUSA, Hiroyasu MATSUURA
  • Patent number: 7513194
    Abstract: A screen mask includes a screen mesh with a tensioning force of 196 to 392 N/mm; a tension mesh with a tensioning force of 49 to 98 N/mm; a resin plate (fixing part) arranged so as to surround the outer periphery of the screen mesh for fixing a part of the tension mesh with a tensioning force of 392 to 980 N/mm; and a screen frame. A length Ls of the screen mesh in a first direction intersecting a direction in which a squeegee squeegees on the screen mesh when performing a screen printing is 0.6 to 0.9 times a length Lt of the tension mesh in the first direction, a length Lk of the resin plate, the length Ls, and the length Lt in the first direction satisfy a relationship Lk=a(Lt+Ls)/2, where “a” is a coefficient in a range of 0.5 to 1.2.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: April 7, 2009
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Naoto Yanagihara, Masayuki Seto, Mikio Nakashima, Nobuyuki Ushifusa
  • Publication number: 20090008128
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Application
    Filed: July 31, 2008
    Publication date: January 8, 2009
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Patent number: 7425762
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: September 16, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Publication number: 20080098911
    Abstract: A screen mask includes a screen mesh with a tensioning force of 196 to 392 N/mm; a tension mesh with a tensioning force of 49 to 98 N/mm; a resin plate (fixing part) arranged so as to surround the outer periphery of the screen mesh for fixing a part of the tension mesh with a tensioning force of 392 to 980 N/mm; and a screen frame. A length Ls of the screen mesh in a first direction intersecting a direction in which a squeegee squeegees on the screen mesh when performing a screen printing is 0.6 to 0.9 times a length Lt of the tension mesh in the first direction, a length Lk of the resin plate, the length Ls, and the length Lt in the first direction satisfy a relationship Lk=a(Lt+Ls)/2, where “a” is a coefficient in a range of 0.5 to 1.2.
    Type: Application
    Filed: April 26, 2007
    Publication date: May 1, 2008
    Applicant: FUJITSU HITACHI PLASMA DISPLAY LIMITED
    Inventors: Naoto Yanagihara, Masayuki Seto, Mikio Nakashima, Nobuyuki Ushifusa
  • Publication number: 20080034991
    Abstract: A technique which enables screen printing on a large printed object is provided. A screen frame of a screen mask has a lower surface (third surface), a screen-mesh holding unit which holds a screen mesh, a surface (fourth surface) which is different from the lower surface, and a screen-frame fixing unit which is fixed in a state in which a first contact region which is a part or the entirety of the surface is in contact with a screen-frame holder of a printing device. The position of the first contact region in a cross section of the screen frame cut from the upper surface toward the lower surface is present above the lower surface.
    Type: Application
    Filed: January 25, 2007
    Publication date: February 14, 2008
    Inventors: Mikio Nakashima, Naoto Yanagihara, Masayuki Seto, Nobuyuki Ushifusa
  • Patent number: 7306346
    Abstract: Inside surround desiccant pattern A surrounding an organic EL element by bonding an element substrate to a sealing board, outside surround desiccant pattern C surrounding the inside surround desiccant pattern A, and internal desiccant pattern (having a thinner film thickness than the inside surround desiccant pattern A) surrounded by the inside surround desiccant pattern A are formed on the sealing board by one time screen printing. For this purpose, a screen mask is utilized on which opening patterns for the inside and outside surround desiccant patterns A, C and an opening pattern having a narrower opening width than the opening patterns for A and C for forming an internal desiccant pattern are formed. With this configuration, it has been achieved to manufacture a highly reliable organic EL display apparatus in more simplified process.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: December 11, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventors: Nobuhiko Fukuoka, Nobuyuki Ushifusa, Issei Takemoto, Yoshinori Ishii
  • Publication number: 20070152579
    Abstract: A display device includes a first substrate having a display area with a plurality of pixels on a main surface and a first seal area formed at a periphery of the display area, and a second substrate disposed to cover the main surface of the first substrate, and having a second seal area at a part of the second substrate opposite to the first seal area. At least one driving circuit which drives the plurality of pixels is arranged outside of the display area on the first substrate. The second substrate has a recessed portion formed at a part of the main surface of the second substrate within the second seal area, and a moisture absorbent layer having a light shielding property adheres to the recessed portion and is arranged to cover the display area and the at least one driving circuit.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 5, 2007
    Inventors: Issei Takemoto, Eiji Matsuzaki, Yuji Mori, Nobuyuki Ushifusa, Hiroyasu Matsuura
  • Publication number: 20070148464
    Abstract: Although sintered wire with lower resistance was preferable as a scan line and a signal line in conventional art in order to make a voltage drop small, there was a problem in electric connection with an electrode which constructs a cathode. In the present invention, a cathode which has an electron-emitting region 16 on a substrate 10 is constructed of a base electrode 11, a top electrode 13, and a protective insulating film 14 sandwiched by these electrodes, the base electrode 11 becomes a signal line, and sintered wire 18, used as a scan line, and the top electrode 13 are connected with an sub-electrode 17. The sub-electrode 17 includes metal included in the sintered wire 18, and metal included in the top electrode 13.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 28, 2007
    Inventors: Etsuko Nishimura, Takuya Takahashi, Takaaki Suzuki, Toshiaki Kusunoki, Masakazu Sagawa, Naohiro Horiuchi, Nobuhiko Fukuoka, Nobuyuki Ushifusa
  • Publication number: 20070080447
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Application
    Filed: December 4, 2006
    Publication date: April 12, 2007
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Publication number: 20070029924
    Abstract: An image display device according to the present invention comprises a back panel on which a plurality of pixels each having a thin film electron emitter are arranged two-dimensionally, a front panel disposed opposite the back panel on which phosphor layer is formed, and a sealing frame with which the back panel and the front panel are fixed mutually to seal the plurality of pixels and the phosphor layer in a space enclosed by the back panel, the front panel, and the sealing frame, and is characterized in that double-layered signal lines each electrically connected to a group of the plurality of pixels are formed on the back panel, each of the double-layered signal lines consists of a lower-level electrode made from a silver paste and an upper-level electrode covering at least a part of the lower-level electrode laminated in this order on the back panel. The lower-level electrode is shaped e.g.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 8, 2007
    Inventors: Nobuyuki Ushifusa, Nobuhiko Fukuoka, Shigeru Matsuyama, Hiroshi Kawasaki, Chikae Kubo, Akira Ishii, Hiroshi Kikuchi, Takuo Tamura, Yasushi Sano
  • Patent number: 7145231
    Abstract: The invention provides an electronic apparatus having a metal core substrate including a metal plate, an insulating layer formed on the metal plate and a conductive layer formed on the insulating layer, and an electronic part, and to which the conductive layer and a terminal of the electronic part are connected. In the electronic apparatus, a member having a high thermal conductivity is arranged so as to be in contact with both of the metal plate and the electronic part. Accordingly, a heat radiating property of the electronic apparatus is increased.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: December 5, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takehiko Hasebe, Takehide Yokozuka, Nobuyuki Ushifusa, Masahide Harada, Eiji Matsuzaki, Hiroshi Hozoji
  • Publication number: 20060214558
    Abstract: The present invention provides a high-quality image display device which allows scanning line electrodes to exhibit a uniform film thickness and the uniform low resistance over a whole length thereof thus suppressing local resistance irregularities and broken steps of the scanning line electrodes. The present invention provides the stacked structure which is constituted of scanning line lower electrodes which are embedded in grooves formed in a main surface of an insulating substrate which constitutes a first substrate, a first insulating layer, signal line electrodes, a second insulating layer, a third insulating layer, and scanning line upper electrodes. Electron sources are constituted of the signal line electrodes, the second insulating layer and the scanning line upper electrodes.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 28, 2006
    Inventors: Chikae Kubo, Nobuyuki Ushifusa, Nobuhiko Fukuoka, Shigeru Matsuyama, Hiroshi Kawasaki, Akira Ishii
  • Publication number: 20060192492
    Abstract: In a display panel each of whose pixels has an electron emission element equipped with a pair of electrodes and an insulation area isolating these electrodes, the present invention specifies that the power supply line (scan line) connected with one of the pair of electrodes shall be formed thicker than the other electrode by screen printing using silver (Ag) paste or the like, and the power supply line and the one of the electrodes shall be connected together through an intermediary of the auxiliary electrode formed thinner than the power supply line, whereby a resistance of the power supply line is decreased, a voltage drop in the one electrode is controlled, and reliability of electrical connection between the power supply line and the one electrode is heightened.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 31, 2006
    Inventors: Nobuyuki Ushifusa, Nobuhiko Fukuoka, Shigeru Matsuyama, Hiroshi Kawasaki, Chikae Kubo, Akira Ishii
  • Patent number: 7063902
    Abstract: An OLED display device having a laminate encapsulating structure containing: an OLED substrate having a leading wire and a pixel area which carries a number of OLEDs on a glass substrate; and an encapsulating plate; and a filler filling a space between the OLED substrate and the encapsulating plate, wherein the filler is dispersed with a desiccant and fine metallic partides for improving electroconductivity and thermoconductivity. This structure not only can prevent an inflow of moisture into the OLEDs and secure a mechanical strength of the OLED display device as a flat panel display device, but also accelerate a heat radiation and improves electroconductivity of a conductive layer.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: June 20, 2006
    Assignees: Hitachi, Ltd., Hitachi Displays, Ltd.
    Inventors: Hiroshi Kikuchi, Nobuyuki Ushifusa, Issei Takemoto
  • Patent number: 7045944
    Abstract: Disclosed is an image display apparatus having a construction such that ultraviolet rays irradiated from a second substrate side are prevented from propagating through a first substrate to reach its display area by providing a picture-frame resin film for shielding ultraviolet rays on that area of the first substrate that is to be sealed to the second substrate with a sealant. Thereby, when the sealant for sealing the substrates is cured by irradiation of ultraviolet rays, photo deterioration of organic materials constituting emitting layered products and semiconductor layers constituting active elements both of which are formed on the display area may be prevented, and a high-reliability and high-performance image display apparatus may be realized.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: May 16, 2006
    Assignee: Hitachi Displays, Ltd.
    Inventors: Nobuyuki Ushifusa, Nobuhiko Fukuoka, Hiroshi Kikuchi, Hiroyasu Matsuura, Issei Takemoto