Patents by Inventor Junichi Ishikawa

Junichi Ishikawa 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).

  • Publication number: 20110165509
    Abstract: Disclosed is a decolorable toner containing a binder resin and a coloring agent which contains a color former compound and a color developing agent and has a capsule structure such that it is covered with an outer shell, and having a volume average particle diameter of from 5.0 to 15.0 ?m and a number-based particle size distribution CV of 35% or less.
    Type: Application
    Filed: December 27, 2010
    Publication date: July 7, 2011
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takayasu Aoki, Junichi Ishikawa, Tsuyoshi Itou
  • Publication number: 20110014558
    Abstract: According to one embodiment, a method for producing a developing agent including aggregating fine particles of a toner material containing a binder resin and a coloring agent in a dispersion liquid in which the fine particles are dispersed in an aqueous medium to form aggregated particles, and washing the aggregated particles and drying the washed aggregated particles, forming toner particles is provided. An electrical conductivity of the toner particles is measured by a toner electrical conductivity evaluation method. A sample toner is prepared by adhering an additive to surfaces of the toner particles, and a content ratio of a sodium element to a carbon element in a region to which the additive is not adhered of the toner is measured. The washing of the toner particles is repeated until each of the measurement values becomes a predetermined reference value or less.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 20, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Masahiro Ikuta, Takayasu Aoki, Takashi Urabe, Tsuyoshi Itou, Motonari Udo, Satoshi Araki, Takafumi Hara, Yasuhito Noda, Taishi Takano, Yasuo Goto, Junichi Ishikawa
  • Publication number: 20100310981
    Abstract: According to one embodiment, a method for producing a developing agent includes pulverizing a mixture in the form of coarse particles of a toner material including a coloring agent and a binder resin by mechanical shearing, aggregating and fusing the resulting fine particles. The solid content concentration in a dispersion liquid including the aggregated particles is from 5.0% to 40.0%, the volume average particle diameter of the aggregated particles is from 1.0 ?m to 10.0 ?m, and the ratio of the standard deviation to the volume average particle diameter is 30.0% or less.
    Type: Application
    Filed: June 2, 2010
    Publication date: December 9, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Junichi Ishikawa, Takayasu Aoki, Tsuyoshi Itou, Yasuhito Noda, Motonari Udo, Satoshi Araki, Masahiro Ikuta, Takafumi Hara, Takashi Urabe, Taishi Takano, Yasuo Goto
  • Patent number: 7828134
    Abstract: There is provided an article alignment apparatus 10 including an article alignment device for aligning orientations of articles by arranging two aligners 21, 21 having cylindrical surfaces, rotating each of the aligners 21 while keeping it at a predetermined inclination with respect to a horizontal direction, placing the articles on cylindrical outer surfaces of the two aligners 21, and carrying the articles from one side to the other side, in which protrusions 22 are provided on the surfaces of the aligners 21.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: November 9, 2010
    Assignee: Kao Corporation
    Inventors: Kouichi Hatano, Junichi Ishikawa, Masaaki Suzuki, Hidenori Shirai
  • Patent number: 7772793
    Abstract: A raindrop detecting device for detecting a raindrop amount on a windshield of a vehicle and selecting a wiping mode of a wiper based on the detected raindrop amount includes a controller for lowering the wiping mode when the detected raindrop amount is kept to be smaller than a mode-keep threshold while the wiper performs a predetermined number of wiping operations. The controller changes the predetermined number of wiping operations based on at least one of a sensitivity data of a user of the vehicle and a rainfall block data relative to the vehicle.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: August 10, 2010
    Assignee: Denso Corporation
    Inventor: Junichi Ishikawa
  • Publication number: 20100108094
    Abstract: The present invention relates to a solvent composition for removing radioactive substance, characterized by comprising at least one selected from hydrofluorocarbon, hydrofluoroether, and perfluoroketone as a medium for transporting the radioactive substance, and a method for removing a radioactive substance characterized by using the solvent composition for removing.
    Type: Application
    Filed: July 29, 2005
    Publication date: May 6, 2010
    Inventors: Junichi Ishikawa, Hideaki Kikuchi, Kazuhito Nagashima
  • Patent number: 7705338
    Abstract: A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield and the light emitting unit to convert the light from the light emitting unit into parallel light, and a second lens unit which is arranged between the windshield and the light receiving unit to converge the reflected light at the light receiving unit. The second lens unit is larger than a radial cross section of the reflected light. An amount of raindrop landed on the outer surface of the windshield is detected based on an intensity of the light received by the light receiving unit.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: April 27, 2010
    Assignee: Denso Corporation
    Inventor: Junichi Ishikawa
  • Patent number: 7658101
    Abstract: A raindrop detection device includes a first fixing member which is fixed to a windshield and has a first engagement portion, an inner housing in which a detection unit is accommodated, an outer housing in which the inner housing is accommodated and which is fixed to the inner housing, a second fixing member having a second engagement portion which is detachably engaged with the first engagement portion of the first fixing member, and a leaf spring which is engaged with the inner housing to press and bias the inner housing toward the windshield. The second fixing member has a leaf-spring biasing portion, which contacts the leaf spring to elastically bias the leaf spring toward the windshield at a predetermined pressing force.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: February 9, 2010
    Assignee: Denso Corporation
    Inventors: Kouichi Gotoh, Junichi Ishikawa
  • Patent number: 7579076
    Abstract: The present invention provides: a unit-piece printing sheet which gives unit pieces having a smooth cut on the periphery thereof and can be subjected to printing on both front and back of the unit pieces, as well as a process for producing the unit-piece printing sheet. The unit-piece printing sheet comprises both front and back printing base materials laminated via a thermoplastic resin film adhesive layer, wherein each of the printing base materials is divided into sections by forming a slit at each facing position of the front and back printing base materials to form unit pieces, and the portion of the thermoplastic resin film adhesive layer at the slit-forming position is made a breakable connecting portion.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 25, 2009
    Assignee: Washi Ishikawa Co., Ltd.
    Inventor: Junichi Ishikawa
  • Patent number: 7576658
    Abstract: A wiper control device for a vehicle with a wiper includes a day/night detecting device for detecting whether the vehicle is in day-like or night-like conditions. The device also includes a moisture detection device that detects a quantity of moisture on the vehicle and a controlling device that controls the wiping action of the wiper based on a wiping sensitivity to the quantity of moisture detected. The controlling device adjusts the wiping sensitivity between night-like wiping sensitivity and day-like wiping sensitivity. The controlling device adjusts wiping sensitivity to night-like wiping sensitivity when the day/night detecting device detects night-like conditions and to day-like wiping sensitivity when the day/night detecting device detects day-like conditions. Additionally, when the day/night detecting device detects a change between day-like and night-like conditions, the controlling device delays switching between night-like and day-like wiping sensitivity for a predetermined delay time.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 18, 2009
    Assignee: Denso Corporation
    Inventor: Junichi Ishikawa
  • Publication number: 20090127444
    Abstract: A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield and the light emitting unit to convert the light from the light emitting unit into parallel light, and a second lens unit which is arranged between the windshield and the light receiving unit to converge the reflected light at the light receiving unit. The second lens unit is larger than a radial cross section of the reflected light. An amount of raindrop landed on the outer surface of the windshield is detected based on an intensity of the light received by the light receiving unit.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 21, 2009
    Applicant: DENSO CORPORATION
    Inventor: Junichi Ishikawa
  • Patent number: 7468523
    Abstract: A raindrop detection apparatus includes a light emitting unit for emitting light to an inner side of a windshield, a light receiving unit for receiving the light reflected by an outer surface of the windshield, a first lens unit which is arranged between the windshield and the light emitting unit to convert the light from the light emitting unit into parallel light, and a second lens unit which is arranged between the windshield and the light receiving unit to converge the reflected light at the light receiving unit. The second lens unit is larger than a radial cross section of the reflected light. An amount of raindrop landed on the outer surface of the windshield is detected based on an intensity of the light received by the light receiving unit.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: December 23, 2008
    Assignee: Denso Corporation
    Inventor: Junichi Ishikawa
  • Patent number: 7429745
    Abstract: A sensor device for detecting wetting on a windshield includes a light emission element for emitting a light, a first light reception element for receiving the light in a first light path that includes reflective redirection by the windshield, and a second light reception element for receiving the light in a second light path that does not include reflective redirection by the windshield. The sensor device uses a ratio of the amount of the received light by the first light reception element and the amount of the received light by the second light reception element to determine wetting on the windshield.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: September 30, 2008
    Assignee: Denso Corporation
    Inventors: Taketoshi Yoshigoe, Junichi Ishikawa, Taiji Morishita
  • Publication number: 20080157704
    Abstract: A raindrop detecting device for detecting a raindrop amount on a windshield of a vehicle and selecting a wiping mode of a wiper based on the detected raindrop amount includes a controller for lowering the wiping mode when the detected raindrop amount is kept to be smaller than a mode-keep threshold while the wiper performs a predetermined number of wiping operations. The controller changes the predetermined number of wiping operations based on at least one of a sensitivity data of a user of the vehicle and a rainfall block data relative to the vehicle.
    Type: Application
    Filed: September 4, 2007
    Publication date: July 3, 2008
    Applicant: DENSO CORPORATION
    Inventor: Junichi Ishikawa
  • Patent number: 7385216
    Abstract: A sensor device for detecting wetting on a windshield includes a light emission element for emitting a light, a first light reception element for receiving the light in a first light path that includes reflective redirection by the windshield, and a second light reception element for receiving the light in a second light path that does not include reflective redirection by the windshield. The sensor device uses a ratio of the amount of the received light by the first light reception element and the amount of the received light by the second light reception element to determine wetting on the windshield.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 10, 2008
    Assignee: Denso Corporation
    Inventors: Taketoshi Yoshigoe, Junichi Ishikawa, Taiji Morishita
  • Patent number: 7345135
    Abstract: The invention provides a crosslinkable aromatic resin having a protonic acid group and a crosslinkable group, suitable for electrolytic membranes and binders used in fuel cells, etc., and electrolytic polymer membranes, binders and fuel cells using the resin. The crosslinkable aromatic resin has a crosslinkable group, which is not derived from the protonic acid group and can form a polymer network without any elimination component. This resin exhibits excellent ion conductivity, heat resistance, water resistance, adhesion property and low methanol permeability. Preferably, the crosslinkable group is composed of a C1 to C10 alkyl group directly bonded to the aromatic ring and/or an alkylene group having 1 to 3 carbon atoms in the main chain in which at least one carbon atom directly bonded to the aromatic ring bonds to hydrogen, and a carbonyl group, or a carbon-carbon double bond or triple bond.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: March 18, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Junichi Ishikawa, Takashi Kuroki, Satoko Fujiyama, Takehiko Omi, Tomoyuki Nakata, Yuichi Okawa, Kazuhisa Miyazaki, Shigeharu Fujii, Shoji Tamai
  • Publication number: 20070292733
    Abstract: This invention provides a binder for a fuel cell which has high adhesion, low methanol solubility, high methanol permeability and high proton conductivity, a composition for electrode formation, an electrode for a fuel cell, and a fuel cell using them. The binder is particularly suitable for a binder for a direct methanol type fuel cell which requires high proton conductivity. The binder for a fuel cell comprises a block copolymer which comprises a block having a repeating structural unit of a divalent aromatic group that contains a protonic acid group and a block having a repeating structural unit of a divalent aromatic group that does not contain a protonic acid group, and which has a glass transition temperature (Tg) of 180° C. or less. In particular, it is preferable that the block copolymer has an ion exchange group equivalent of from 200 to 1,000 g/mole and a weight retention ratio of 90% or more as measured by immersion in a 64 weight % aqueous methanol solution at 25° C. for 24 hours.
    Type: Application
    Filed: July 21, 2005
    Publication date: December 20, 2007
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Masahiro Toriida, Junichi Ishikawa, Takehiko Omi, Satoko Fujiyama, Kuniyuki Takamatsu, Shoji Tamai
  • Patent number: 7309873
    Abstract: A raindrop sensor includes a light-emitting element, a light-receiving element and a light guide body. The light-emitting element and the light-receiving element face a transparent panel. The light guide body, which is mounted on the transparent panel, includes an input lens, an input side dividing surface, an output lens and an output side dividing surface. The input lens collimates light emitted by the light-emitting element to form an input side collimated light beam. The output lens receives the collimated light beam, which is collimated by the input lens and is reflected by a reference surface of the transparent panel, to which the raindrop attaches. The output lens converges the reflected collimated light beam toward the light-receiving element. An intersection between an imaginary extension of the input side dividing surface and an imaginary extension of the output side dividing surface is located on the reference surface of the transparent panel.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: December 18, 2007
    Assignee: Denso Corporation
    Inventor: Junichi Ishikawa
  • Publication number: 20070222997
    Abstract: A raindrop detection device includes a first fixing member which is fixed to a windshield and has a first engagement portion, an inner housing in which a detection unit is accommodated, an outer housing in which the inner housing is accommodated and which is fixed to the inner housing, a second fixing member having a second engagement portion which is detachably engaged with the first engagement portion of the first fixing member, and a leaf spring which is engaged with the inner housing to press and bias the inner housing toward the windshield. The second fixing member has a leaf-spring biasing portion, which contacts the leaf spring to elastically bias the leaf spring toward the windshield at a predetermined pressing force.
    Type: Application
    Filed: February 14, 2007
    Publication date: September 27, 2007
    Applicant: Denso Corporation
    Inventors: Kouichi Gotoh, Junichi Ishikawa
  • Patent number: 7264121
    Abstract: An article holder for holding an article including a main body configured to receive the article, and at least one deformable article receiving member disposed on a bottom plate of the main body. The deformable article receiving member is configured to deform so as to change a receiving height of the article inserted in the main body.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: September 4, 2007
    Assignee: Kao Corporation
    Inventors: Junichi Ishikawa, Hidenori Shirai, Masatoshi Yokota