Patents by Inventor Kazuo Tasaka

Kazuo Tasaka 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: 7965371
    Abstract: A method of manufacturing an electro-optical device by cutting up a pair of mother substrates that are joined to each other by means of a sealant with an electro-optical material being sandwiched therebetween into a plurality of panel formation regions. The method includes: forming a groove along each of at least two pre-work cut lines in either one of the pair of mother substrates; blowing air on one edge face of a region between the grooves formed in the one of the pair of mother substrates; and removing the region between the grooves formed in the one of the pair of mother substrates by vacuuming the region. Herein, the vacuuming is applied to the other edge face of the region.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: June 21, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Kazuo Tasaka
  • Patent number: 7881819
    Abstract: A substrate transfer apparatus transfers substrates stored in a first substrate storage case, which has support grooves in its inner wall, along the support grooves to substrate storage surfaces included in a second substrate storage case.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: February 1, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Tasaka, Hirokazu Fujishima
  • Patent number: 7557898
    Abstract: A substrate gap adjusting device adjusts a gap between first and second substrates in a composite substrate. In the substrate gap adjusting device, the composite substrate includes the first substrate; the second substrate that is oppositely bonded to the first substrate through a sealant, the second substrate having a smaller area than the first substrate; and liquid crystal that is injected into a space surrounded by the first substrate, the second substrate, and the sealant.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: July 7, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Kazuo Tasaka, Narumi Ishibashi, Masanori Akiyama
  • Publication number: 20080180628
    Abstract: A method of manufacturing an electro-optical device by cutting up a pair of mother substrates that are joined to each other by means of a sealant with an electro-optical material being sandwiched therebetween into a plurality of panel formation regions. The method includes: forming a groove along each of at least two pre-work cut lines in either one of the pair of mother substrates; blowing air on one edge face of a region between the grooves formed in the one of the pair of mother substrates; and removing the region between the grooves formed in the one of the pair of mother substrates by vacuuming the region. Herein, the vacuuming is applied to the other edge face of the region.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 31, 2008
    Applicant: Seiko Epson Corporation
    Inventor: Kazuo TASAKA
  • Publication number: 20060219688
    Abstract: A substrate transfer apparatus transfers substrates stored in a first substrate storage case, which has support grooves in its inner wall, along the support grooves to substrate storage surfaces included in a second substrate storage case.
    Type: Application
    Filed: March 6, 2006
    Publication date: October 5, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Kazuo Tasaka, Hirokazu Fujishima
  • Publication number: 20060221292
    Abstract: A substrate gap adjusting device adjusts a gap between first and second substrates in a composite substrate. In the substrate gap adjusting device, the composite substrate includes the first substrate; the second substrate that is oppositely bonded to the first substrate through a sealant, the second substrate having a smaller area than the first substrate; and liquid crystal that is injected into a space surrounded by the first substrate, the second substrate, and the sealant.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 5, 2006
    Applicant: Seiko Epson Corporation
    Inventors: Kazuo Tasaka, Narumi Ishibashi, Masanori Akiyama
  • Patent number: 6897093
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows, is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are identical to the leads and the tub-suspension leads and flat.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: May 24, 2005
    Assignees: Renesas Technology Corp., Hitachi Hokkai Semiconductor, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Patent number: 6800507
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are flat and level with the leads and the tub-suspension leads.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: October 5, 2004
    Assignees: Renesas Technology Corp., Hitachi Hokkai Semiconductor, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Publication number: 20040104490
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows, is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are identical to the leads and the tub-suspension leads and flat.
    Type: Application
    Filed: July 25, 2003
    Publication date: June 3, 2004
    Applicants: Hitachi, Ltd., Hitachi Hokkai Semiconductor, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Patent number: 6664647
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are flat and level with the leads and the tub-suspension leads.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: December 16, 2003
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Publication number: 20030087478
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are flat and level with the leads and the tub-suspension leads.
    Type: Application
    Filed: December 23, 2002
    Publication date: May 8, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Publication number: 20020109242
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows, is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are identical to the leads and the tub-suspension leads and flat.
    Type: Application
    Filed: April 17, 2002
    Publication date: August 15, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka
  • Publication number: 20020020929
    Abstract: Upon the manufacture of a non-leaded type semiconductor device having an encapsulater, and a gate cured resin and air vent cured resins which remain as a result of the exposure of leads and tub-suspension leads to a mounting surface of the encapsulater and the formation of the encapsulater, a groove through which a resin flows, is not provided over the full circumference of a cavity defined in a mold die for forming the encapsulater. A gate and air vents are provided outside an area in which no groove is defined. The flow of the resin between the cavity and each of the gate and air vents is made through a gap or space defined between each of the adjacent leads and each tub-suspension lead. If the leads and the tub-suspension leads are cut at a groove-free place, then the occurrence of resin waste and a resin crack can be restrained because the gate cured resin and the air vent cured resins have their surfaces which are identical to the leads and the tub-suspension leads and flat.
    Type: Application
    Filed: August 3, 2001
    Publication date: February 21, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Takahiro Kasuga, Seiichi Tomihara, Kazuo Tasaka