Patents by Inventor Yoshiyuki Sakai

Yoshiyuki Sakai 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: 9296908
    Abstract: An aqueous inkjet ink composition comprising a pigment, a pigment-dispersing resin, resin fine particles (A), water, and hydrophilic solvents (B), the resin fine particles (A) being formed by emulsion polymerizing ethylenically unsaturated monomers including: 20% to 80% by weight of an aromatic ethylenically unsaturated monomer (C) that does not have an ionic functional group; 0.6% to 6% by weight of water-soluble ethylenically unsaturated monomers (F) consisting of 0.5% to 3% by weight of a sulfonic acid group-containing ethylenically unsaturated monomer (D) and 0.1% to 3% by weight of a nonionic water-soluble ethylenically unsaturated monomer (E); and 0.1% to 10% by weight of a crosslinkable ethylenically unsaturated monomer (G), and the hydrophilic solvents (B) including a glycol-based solvent (H) and an ethylene glycol ether-based solvent (I) is provided.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 29, 2016
    Assignees: TOYO INK SC HOLDINGS CO., LTD., TOYO INK CO., LTD.
    Inventors: Takaaki Koike, Sachiko Kinoshita, Yoshiyuki Sakai, Akiko Nishina, Masayoshi Utsugi, Yukitoshi Takahashi, Atsushi Yoda, Masahiro Sugihara
  • Publication number: 20150380248
    Abstract: An ion implantation mask, which is an inorganic insulating film, is formed on a silicon carbide substrate. A mask portion and two regions of an opened ion implantation portion are formed in the ion implantation mask by dry etching. At that time, a residual portion which is thinner than the mask portion is formed in the bottom of the opened ion implantation portion. Then, ions are implanted through the ion implantation mask to form a predetermined semiconductor region in the silicon carbide substrate. According to this structure, it is possible to prevent an increase in the roughness of the surface of the silicon carbide substrate and to improve breakdown voltage.
    Type: Application
    Filed: September 9, 2015
    Publication date: December 31, 2015
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Makoto UTSUMI, Yoshiyuki SAKAI
  • Publication number: 20130079447
    Abstract: An aqueous inkjet ink composition comprising a pigment, a pigment-dispersing resin, resin fine particles (A), water, and hydrophilic solvents (B), the resin fine particles (A) being formed by emulsion polymerizing ethylenically unsaturated monomers including: 20% to 80% by weight of an aromatic ethylenically unsaturated monomer (C) that does not have an ionic functional group; 0.6% to 6% by weight of water-soluble ethylenically unsaturated monomers (F) consisting of 0.5% to 3% by weight of a sulfonic acid group-containing ethylenically unsaturated monomer (D) and 0.1% to 3% by weight of a nonionic water-soluble ethylenically unsaturated monomer (E); and 0.1% to 10% by weight of a crosslinkable ethylenically unsaturated monomer (G), and the hydrophilic solvents (B) including a glycol-based solvent (H) and an ethylene glycol ether-based solvent (I) is provided.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 28, 2013
    Applicants: TOYO INK CO., LTD., TOYO INK SC HOLDINGS CO., LTD.
    Inventors: Takaaki Koike, Sachiko Kinoshita, Yoshiyuki Sakai, Akiko Nishina, Masataka Utsugi, Yukitoshi Takahashi, Atsushi Yoda, Masahiro Sugihara
  • Patent number: 7488513
    Abstract: A method of producing microcapsules having an electrophoretic particle dispersion encapsulated comprises the steps of: emulsifying and dispersing a hydrophobic dispersion having electrophoretic particles dispersed in a hydrophobic medium by using a high-speed rotating stirring apparatus wherein the circumferential speed at the end of a stirring part is 2 m/s to 90 m/s, and the distance (a) between the end of the stirring part and that immobile part of the stirring apparatus which is nearest to the end of the stirring part is 0 mm<(a)<20 mm; and forming microcapsules of the emulsified and dispersed hydrophobic dispersion under stirring with a stirring blade.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: February 10, 2009
    Assignee: Toyo Ink Mfg. Co., Ltd.
    Inventors: Yoshiyuki Sakai, Kazuhiro Jonai, Toshiyuki Uemura
  • Publication number: 20050179983
    Abstract: A method of producing microcapsules having an electrophoretic particle dispersion encapsulated comprises the steps of: emulsifying and dispersing a hydrophobic dispersion having electrophoretic particles dispersed in a hydrophobic medium by using a high-speed rotating stirring apparatus wherein the circumferential speed at the end of a stirring part is 2 m/s to 90 m/s, and the distance (a) between the end of the stirring part and that immobile part of the stirring apparatus which is nearest to the end of the stirring part is 0 mm<(a)<20 mm; and forming microcapsules of the emulsified and dispersed hydrophobic dispersion under stirring with a stirring blade.
    Type: Application
    Filed: March 20, 2003
    Publication date: August 18, 2005
    Inventors: Yoshiyuki Sakai, Kazuhiro Jonai, Toshiyuki Uemura
  • Patent number: 6641671
    Abstract: The coating material is supplied to a coating die provided with a manifold chamber, a draw-in chamber provided with a diaphragm, a supply passage and a discharge opening. The coating material is stored temporarily in the manifold chamber, is supplied through the supply passage to the discharge opening, and is discharged through the discharge opening onto the surface of the base sheet. The discharge of the coating material through the discharge opening is interrupted by deforming the diaphragm so as to form a draw-in chamber. The ball nut is driven by the servomotor so as to move the ball screw axially away from the supply passage to deform the flexible diaphragm so that the coating material is drawn into the draw-in chamber to interrupt discharging the coating material through the discharge opening. Thus, the coating material is applied intermittently to the substrate.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: November 4, 2003
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kenya Shinozaki, Yoshiyuki Sakai
  • Patent number: 6455105
    Abstract: An upper die unit (37) and a lower die unit (39) are disposed in opposition, with a gap, to a substrate (31) being conveyed, and provided with coating agent supply flow paths (97, 99) which have inlet paths (103, 105) for a coating agent to flow in and delivery ports (101, 102) for delivering the coating agent to coat the substrate (31) therewith. An accumulation piece (119, 121) installed in a flow path part (97b, 99b) of each die unit (37, 39) moves in the direction in which it goes away from the flow path part (97b, 99b), drawing in the coating agent, dwelling the delivery of the coating agent from the delivery port (101, 102), forming a non-coated part (F), and repeats a reciprocating action, repeating a coating and non-coating. An elastic plate (355) on a way of the coating agent supply flow path (339) is displaced in accordance with advance/retreat actions of a piston member (363) caused by a rotation of a cam (387).
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: September 24, 2002
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Yoshiyuki Sakai, Tatsuya Yoshikawa, Akinori Ide
  • Publication number: 20020017238
    Abstract: The coating material is supplied to a coating die provided with a manifold chamber, a draw-in chamber provided with a diaphragm, a supply passage and a discharge opening. The coating material is stored temporarily in the manifold chamber, is supplied through the supply passage to the discharge opening, and is discharged through the discharge opening onto the surface of the base sheet. The discharge of the coating material through the discharge opening is interrupted by deforming the diaphragm so as to form a draw-in chamber. The ball nut is driven by the servomotor so as to move the ball screw axially away from the supply passage to deform the flexible diaphragm so that the coating material is drawn into the draw-in chamber to interrupt discharging the coating material through the discharge opening. Thus, the coating material is applied intermittently to the substrate.
    Type: Application
    Filed: August 3, 2001
    Publication date: February 14, 2002
    Inventors: Kenya Shinozaki, Yoshiyuki Sakai
  • Patent number: 6121097
    Abstract: A polysilicon film is deposited in a trench formed in a silicon element substrate. The polysilicon film in the trench and on the silicon element substrate is anisotropically etched, so that the film remains on the side wall of the trench. The polysilicon film on the side wall is oxidized to obtain an insulating film, which buries the trench. At the same time, an oxidized film is formed on the surface of the silicon element substrate to complete a trench-mold separation area.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: September 19, 2000
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Yuichi Urano, Masato Nishizawa, Yoshiyuki Sakai, Naoki Ito, Shinichi Hashimoto
  • Patent number: 5882407
    Abstract: A coating die is disclosed, in which a slit-like spacing 29 is formed between a pair of die elements 25, 27 arranged in opposed relation to each other. A band-shaped electrode sheet 23 is movable along the length of the spacing 29. The sides of the slit-like spacing along the width of the electrode sheet 23 are enclosed. An electrode piling agent is supplied from an external source into the die element pair 25, 27 through supply flow paths 47, 49. Discharge ports 47a, 49a of the supply flow paths 47, 49 are open to the slit-like spacing 29. The portion of the spacing 29 downstream of the discharge ports 47a, 49a in the direction of movement of the electrode sheet 23 has a thickness equivalent to the thickness of the electrode sheet 23 plus the thickness of the electrode piling agent coated on the two sides of the electrode sheet 23. The portion of the spacing 29 upstream of the discharge ports 47a, 49a has a thickness substantially equal to the thickness of the electrode sheet 23.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: March 16, 1999
    Assignees: Toshiba Battery Co., Ltd., Toshiba Kikai Kabushiki Kaisha
    Inventors: Kazuta Takeno, Takeo Ito, Shigeo Kasahara, Gen Takayama, Hiroshi Kaneko, Yoshiyuki Sakai, Toshihiko Kusago, Katsuhiko Iguchi
  • Patent number: 5854120
    Abstract: A polysilicon film is deposited in a trench formed in a silicon element substrate. The polysilicon film in the trench and on the silicon element substrate is anisotropically etched, so that the film remains on the side wall of the trench. The polysilicon film on the side wall is oxidized to obtain an insulating film, which buries the trench. At the same time, an oxidized film is formed on the surface of the silicon element substrate to complete a trench-mold separation area.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: December 29, 1998
    Assignee: Fuji Electric Co.
    Inventors: Yuichi Urano, Masato Nishizawa, Yoshiyuki Sakai, Naoki Ito, Shinichi Hashimoto
  • Patent number: 5755042
    Abstract: Air-blowing nozzles 21 for blowing a hot air are provided in both sides of an electrode sheet 33 for a battery both surfaces of which an electrode compounding agent has been applied to. In each of the air-blowing nozzles 21, a pair of slit-shaped blowholes 65 being extended in the width direction of the electrode sheet 33 are provided on both of the upper and lower sides of the end face part 63. The hot air blown off from a pair of the upper and lower blowholes 65 dries the electrode compounding agent as well as pressurizes a space between the electrode sheet 33 and the end face part 63 to form a pressure room P, and the left and right pressure rooms P hold the electrode sheet 33 to suppress its sway.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: May 26, 1998
    Assignees: Toshiba Battery Co., Ltd., Toshiba Kikai Kabushiki Kaisha
    Inventors: Gen Takayama, Tsutomu Horikoshi, Shigeo Kasahara, Yoshiyuki Sakai, Toshihiko Kusago, Yasuhiro Kuroki
  • Patent number: 5689900
    Abstract: Air-blowing nozzles 21 for blowing a hot air are provided in both sides of an electrode sheet 33 for a battery both surfaces of which an electrode compounding agent has been applied to. In each of the air-blowing nozzles 21, a pair of slit-shaped blowholes 65 being extended in the width direction of the electrode sheet 33 are provided on both of the upper and lower sides of the end face part 63. The hot air blown off from a pair of the upper and lower blowholes 65 dries the electrode compounding agent as well as pressurizes a space between the electrode sheet 33 and the end face part 63 to form a pressure room P, and the left and right pressure rooms P hold the electrode sheet 33 to suppress its sway.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: November 25, 1997
    Assignees: Toshiba Battery Co., Ltd., Toshiba Kikai Kabushiki Kaisha
    Inventors: Gen Takayama, Tsutomu Horikoshi, Shigeo Kasahara, Yoshiyuki Sakai, Toshihiko Kusago, Yasuhiro Kuroki
  • Patent number: 5576241
    Abstract: A method for separating a joined substrate type wafer, which wafer is composed of a pair of semiconductor substrates joined through an insulation film, utilizes dielectrics through simple processing steps. Trenches for separating a semiconductor substrate with dielectrics are dug from the surface of the substrate and a dielectrics film is deposited on the surface of the substrate including the trenches. Then poly-crystalline silicon under layer is grown by CVD method to a thickness of about 0.5 .mu.m. Thereafter, a poly-crystalline silicon filler layer, which is deep enough to fill the trenches, is grown over the underlying poly-crystalline silicon under layer, followed by selectively removing the two poly-crystalline silicon layers from the surface of the substrate excluding the regions inside the trenches. An alternative embodiment contemplates depositing a second dielectrics film interposed between the poly-crystalline silicon under layer and the poly-crystalline silicon filler layer.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: November 19, 1996
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Yoshiyuki Sakai
  • Patent number: 5576986
    Abstract: A highly reliable memory device with excellent heat resistance that can be used in any environment utilizes a chemical change to define a state transition. The memory device includes a micro vacuum tube structure having a recess portion formed on an upper face of a quartz substrate, a cold cathode having many comb-tooth like tips extending from the quartz substrate over to one side of the recess portion, a rectangular control electrode disposed on the side of the cold cathode at the bottom of the recess portion, an anode extending from the quartz substrate over to the other side of the recess portion and facing opposed to the cold cathode, and a sealing member for vacuum sealing a space inside the recess portion 11a. N.sub.2 and O.sub.2 gases are enclosed in a space under the pressure of 0.2 mmHg. By changing the control electrode voltage, energy of accelerated electrons is changed: NO is produced at the control voltage of 17 eV, NO2 at 23 eV and the product gases dissociate to N.sub.2 and O.sub.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: November 19, 1996
    Assignee: Fuji Electric Co. Ltd.
    Inventors: Kazuo Matsuzaki, Yoshiyuki Sakai, Yuichi Urano, Hidekatsu Kuroda, Akira Amano