Patents by Inventor Kazuhiro Hasegawa

Kazuhiro Hasegawa 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).

  • Rail-to-rail amplifier circuit and semiconductor device
    Patent number: 7592868
    Abstract: A rail-to-rail amplifier for amplifying an analog signal from a DAC includes a first differential input section, which includes an n-channel transistor pair, a second differential input section, which includes a p-channel transistor pair, a first current supply provided between the second differential input section and a high voltage side supply, and a current controller for the second input section provided between the first current supply and the second differential input section for controlling the current supply to the second differential input section in accordance with data of a predetermined bit position in input digital data to the DAC.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: September 22, 2009
    Assignees: Sanyo Electric Co., Ltd., SANYO Semiconductor Co., Ltd.
    Inventor: Kazuhiro Hasegawa
  • IMAGE HEATING DEVICE
    Publication number: 20090208265
    Abstract: The present invention relates to an image heating device comprising, a first belt which heats an image on a recording material at a nip, a second belt which forms the nip with the first belt, a first pressure member and a first rotating member which press the first belt at the nip, the first pressure member and the first rotating member being provided while not being in contact with each other; and a second pressure member and a second rotating member which press the second belt at the nip, the second pressure member and the second rotating member being provided while not being in contact with each other. The nip is formed by a region where at least one of the first pressure member, the first rotating member, the second pressure member, and the second rotating member is in contact with the corresponding belt.
    Type: Application
    Filed: April 28, 2009
    Publication date: August 20, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ikuo Nakamoto, Kazuhiro Hasegawa
  • CONVEYOR-BELT APPARATUS AND IMAGE HEATING APPARATUS
    Publication number: 20090208260
    Abstract: An image heating apparatus including: an endless belt; a heating rotary member for heating a toner image on a sheet at a heating nip between the belt and the rotary member; a pressure member provided slidably on an inner surface of the belt at the heating nip, for bringing the belt into pressure contact with the rotary member; and a lubricant applying roller including a lubricant retaining layer for retaining a lubricant and a lubricant applying amount controlling layer for controlling an applying amount of the lubricant, the lubricant applying roller abutting against the inner surface of the belt to apply the lubricant onto the inner surface of the belt while rotating, in which the lubricant applying roller is brought into contact with the belt and includes a high frictional portion having a coefficient of friction higher than that of the lubricant applying amount controlling layer.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 20, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kazuhiro Hasegawa
  • Rod connector
    Patent number: 7572278
    Abstract: A rod connector is provided with a rod supporting portion in a part of a connector main body supported to a leading end of a shank portion. A rod pressing portion is provided in a side opposing to the rod supporting portion, and a rod is clamped and fixed by the rod pressing portion and the rod supporting portion. At this time, small convex portions provided in the rod supporting portion eat into the rod.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: August 11, 2009
    Assignee: Showa Ika Kohgyo Co., Ltd.
    Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
  • Rod connector
    Patent number: 7569070
    Abstract: A rod connector is provided with a rod supporting portion in a part of a connector main body supported to a leading end of a shank portion. A rod pressing portion is provided in a side opposing to the rod supporting portion, and a rod is clamped and fixed by the rod pressing portion and the rod supporting portion. At this time, small convex portions provided in the rod supporting portion eat into the rod.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: August 4, 2009
    Assignee: Showa Ika Kohgyo Co., Ltd.
    Inventors: Nobumasa Suzuki, Yutaka Nohara, Shinnosuke Nakahara, Shigenobu Sato, Kazumasa Ueyama, Kazuhiro Hasegawa, Kazuya Oribe, Hiroshi Takamido
  • Microscope lens barrel
    Patent number: 7554724
    Abstract: Provided is a microscope lens barrel including a collecting lens and a deflecting optical system. The collecting lens emits observation light toward the deflecting optical system. The deflecting optical system includes a first reflecting plane, a second reflecting plane, a third reflecting plane, and a fourth reflecting plane, and deflects the observation light emitted from the collecting lens. The first reflecting plane transmits the observation light incident from one direction and reflects the observation light incident at an angle from another direction. The second reflecting plane reflects the observation light transmitted through the first reflecting plane and makes the reflected observation light incident on the first reflecting plane at an angle. The third reflecting plane reflects the observation light reflected by the first reflecting plane in a direction of the second reflecting plane.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: June 30, 2009
    Assignee: Olympus Corporation
    Inventor: Kazuhiro Hasegawa
  • Digital camera for an optical apparatus including a cooling mechanism for a solid-state imaging device
    Patent number: 7545437
    Abstract: A digital camera for an optical apparatus according to an aspect of the present invention comprises a solid-state imaging device which picks up an image of a target object, a solid-state imaging device cooling part configured to cool the solid-state imaging device, and a sealing part which includes a printed board for wiring for electric signals, and seals the solid-state imaging device and the solid-state imaging device cooling part.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: June 9, 2009
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Kazuhiro Hasegawa, Hideyuki Masuyama, Yoshihiro Ue
  • Image heating device
    Patent number: 7542711
    Abstract: The present invention relates to an image heating device comprising, a first belt which heats an image on a recording material at a nip, a second belt which forms the nip with the first belt, a first pressure member and a first rotating member which press the first belt at the nip, the first pressure member and the first rotating member being provided while not being in contact with each other; and a second pressure member and a second rotating member which press the second belt at the nip, the second pressure member and the second rotating member being provided while not being in contact with each other. The nip is formed by a region where at least one of the first pressure member, the first rotating member, the second pressure member, and the second rotating member is in contact with the corresponding belt.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: June 2, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ikuo Nakamoto, Kazuhiro Hasegawa
  • Image heating apparatus with related image heating member and heat pipe
    Patent number: 7466950
    Abstract: An image heating apparatus includes a coil for generating magnetic flux and an image heating member. The image heating member comprises an electroconductive layer which generates heat by eddy current generated by the magnetic flux from the coil, for heating an image on a recording material. The image heating apparatus further comprises an energization control device for controlling energization of the coil so that a temperature of the image heating member is a predetermined temperature Tf (° C.), and a heat pipe contactable with the image heating member. The electroconductive layer has a Curie temperature Tc so that the relation Tf?Tc?Tf+Qmax (W)×Rh (° C./W) is satisfied, wherein Qmax (W) represents a maximum amount of heat transport, and Rh (° C./W) represents a value of heat resistance of the heat pipe at a dryout occurrence temperature of the heat pipe.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: December 16, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daigo Matsuura, Yasuhiro Hayashi, Ikuo Nakamoto, Kazuhiro Hasegawa, Shigeaki Takada
  • INVERTED MICROSCOPE
    Publication number: 20080304145
    Abstract: An inverted microscope includes a lens holding mechanism which holds an objective lens arranged under a sample and used to form an observation image of the sample; a focusing mechanism which holds the lens holding mechanism on its upper part and moves the objective lens up and down together with the lens holding mechanism; and a microscope main body which serves as a casing including the focusing mechanism therein, and includes an opening allowing an attachment of the focusing mechanism and the lens holding mechanism in its upper wall surface. A size of the lens holding mechanism in a horizontal plane is larger than a size of an image projected onto the horizontal plane of the opening.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 11, 2008
    Applicant: Olympus Corporation
    Inventor: Kazuhiro HASEGAWA
  • Image heating apparatus
    Patent number: 7457576
    Abstract: An image heating apparatus includes a first belt contactable to an image on a recording material to heat the image; a second belt for forming a nip with the first belt; a first pressing pad for pressing the first belt in the nip; a second pressing pad for pressing the second belt toward the first pressing pad, wherein the first pressing pad has a surface roughness Rz of not more than 20 ?m, and the second pressing pad has a surface roughness Rz of 50-300 ?m.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: November 25, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeaki Takada, Makoto Jinzai, Kazuhiro Hasegawa, Ikuo Nakamoto, Yasuhiro Hayashi, Daigo Matsuura, Keigo Kaji, Hiroshi Komiyama, Nobuaki Hara
  • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20080286657
    Abstract: A non-aqueous electrolyte secondary battery is composed of a positive electrode containing a positive electrode active material capable of storing and releasing lithium ion, a negative electrode containing a negative electrode active material capable of storing and releasing lithium ion, and a non-aqueous electrolyte. The negative electrode active material contains a first material of a graphite material and a second material of a complex in which graphite material and silicon or silicon composite are coated with amorphous carbon material, and a cyclic carbonic acid ester derivative having fluoride atom and a sulfur-containing composite having cyclic structure are added to the non-aqueous electrolyte.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 20, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazuhiro HASEGAWA, Akihiro SUZUKI, Hiroyuki FUJIMOTO, Katsuaki TAKAHASHI
  • Nonaqueous electrolyte secondary battery
    Patent number: 7435510
    Abstract: A nonaqueous electrolyte secondary battery comprising a positive electrode containing a positive active material, a negative electrode containing a negative active material and a nonaqueous electrolyte, wherein a lithium transition metal complex oxide A formed by allowing LiCoO2 to contain at least both of Zr and Mg and a lithium transition metal complex oxide B having a layered structure and containing at least both of Mn and Ni as transition metals and containing molybdenum (Mo) are mixed and used as said positive active material.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: October 14, 2008
    Assignee: Sanyo Electric Co.
    Inventors: Shingo Tode, Hiroyuki Fujimoto, Yasufumi Takahashi, Akira Kinoshita, Kazuhiro Hasegawa, Shin Fujitani
  • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20080233485
    Abstract: A non-aqueous electrolyte secondary battery comprises: a positive electrode using a positive electrode active material consisting of metal composite oxide containing lithium having a laminated structure; a negative electrode; and a non-aqueous electrolyte dissolving an electrolyte in a non-aqueous solvent; wherein the positive electrode active material contains 50 mol % or more of nickel in metal excluding lithium, and cyclic ether is added in the range of 0.1 volume % to 2.0 volume % to the non-aqueous electrolyte.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 25, 2008
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Daizo JITO, Katsuaki TAKAHASHI, Kazuhiro HASEGAWA, Hiroyuki FUJIMOTO, Ikuro NAKANE
  • RAIL-TO-RAIL AMPLIFIER CIRCUIT AND SEMICONDUCTOR DEVICE
    Publication number: 20080224777
    Abstract: A rail-to-rail amplifier for amplifying an analog signal from a DAC includes a first differential input section, which includes an n-channel transistor pair, a second differential input section, which includes a p-channel transistor pair, a first current supply provided between the second differential input section and a high voltage side supply, and a current controller for the second input section provided between the first current supply and the second differential input section for controlling the current supply to the second differential input section in accordance with data of a predetermined bit position in input digital data to the DAC.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 18, 2008
    Applicants: SANYO ELECTRIC CO., LTD., SANYO SEMICONDUCTOR CO., LTD.
    Inventor: Kazuhiro Hasegawa
  • IMAGE HEATING DEVICE
    Publication number: 20080213013
    Abstract: The present invention relates to an image heating device comprising, a first belt which heats an image on a recording material at a nip, a second belt which forms the nip with the first belt, a first pressure member and a first rotating member which press the first belt at the nip, the first pressure member and the first rotating member being provided while not being in contact with each other; and a second pressure member and a second rotating member which press the second belt at the nip, the second pressure member and the second rotating member being provided while not being in contact with each other. The nip is formed by a region where at least one of the first pressure member, the first rotating member, the second pressure member, and the second rotating member is in contact with the corresponding belt.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 4, 2008
    Applicant: Canon Kabushiki Kaisha
    Inventors: Ikuo Nakamoto, Kazuhiro Hasegawa
  • MICROSCOPE LENS BARREL
    Publication number: 20080180795
    Abstract: Provided is a microscope lens barrel including a collecting lens and a deflecting optical system. The collecting lens emits observation light toward the deflecting optical system. The deflecting optical system includes a first reflecting plane, a second reflecting plane, a third reflecting plane, and a fourth reflecting plane, and deflects the observation light emitted from the collecting lens. The first reflecting plane transmits the observation light incident from one direction and reflects the observation light incident at an angle from another direction. The second reflecting plane reflects the observation light transmitted through the first reflecting plane and makes the reflected observation light incident on the first reflecting plane at an angle. The third reflecting plane reflects the observation light reflected by the first reflecting plane in a direction of the second reflecting plane.
    Type: Application
    Filed: January 8, 2008
    Publication date: July 31, 2008
    Applicant: Olympus Corporation
    Inventor: Kazuhiro HASEGAWA
  • Image heating apparatus including pads and belts forming a pressurized nip
    Patent number: 7406288
    Abstract: The present invention relates to an image heating device comprising, a first belt which heats an image on a recording material at a nip, a second belt which forms the nip with the first belt, a first pressure member and a first rotating member which press the first belt at the nip, the first pressure member and the first rotating member being provided while not being in contact with each other; and a second pressure member and a second rotating member which press the second belt at the nip, the second pressure member and the second rotating member being provided while not being in contact with each other. The nip is formed by a region where at least one of the first pressure member, the first rotating member, the second pressure member, and the second rotating member is in contact with the corresponding belt.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: July 29, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ikuo Nakamoto, Kazuhiro Hasegawa
  • Electroluminescent phosphor, process for producing the same, and electroluminescent device containing the same
    Patent number: 7400085
    Abstract: An electroluminescent phosphor comprising ZnS-based phosphor core particles and a coating layer provided on the individual core particles, the core particles having a mean particle size of 0.1 to 15 ?m with a coefficient of variation of particle size distribution less than 35% and containing at least 30%, based on total particles, of particles having at least 10 stacking faults with an interplanar spacing of 5 nm or less.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: July 15, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Kazuhiro Hasegawa
  • Image heating apparatus
    Patent number: 7392005
    Abstract: An image heating apparatus includes a rotatable heating member configured to heat an image on a recording medium at a nip, driving means configured to drive the heating member, an endless belt configured to form the nip with the heating member, and a driving roller configured to drive the endless belt. In the image heating apparatus, the following expressions are satisfied: ?2<?1 0.005<?2<0.3 V1<V2 where ?2 is a friction coefficient between the endless belt and the driving roller, ?1 is a friction coefficient between the heating member and the endless belt, V1 is a peripheral speed of the heating member, and V2 is a peripheral speed of the driving roller.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: June 24, 2008
    Inventors: Keigo Kaji, Hiroshi Komiyama, Daigo Matsuura, Makoto Jinzai, Yasuhiro Hayashi, Kazuhiro Hasegawa, Shigeaki Takada, Nobuaki Hara, Ikuo Nakamoto, Shinichiro Hosoi, Seiichiro Kameda, Junichi Moteki, Youichi Chikugo, Yoshikuni Ito