Patents by Inventor Yasuhiro Yoshimura
Yasuhiro Yoshimura 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).
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Publication number: 20060170112Abstract: A connection method for materializing a high-performance semiconductor system which is small-sized and high dense, is capable to three-dimensionally connecting a plurality of different kinds of semiconductor chips through piercing electrodes with shortest wiring lengths. The connection method enables high-speed operation with low noise, so as to obtain reliable and excellent connection in a short TAT at low costs.Type: ApplicationFiled: January 10, 2006Publication date: August 3, 2006Applicant: Renesas Technology Corp.Inventors: Naotaka Tanaka, Yasuhiro Yoshimura, Takahiro Naito, Takashi Akazawa
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Publication number: 20060098996Abstract: The present invention aims to reduce the time period of the start up operation of an image forming apparatus corresponding to an image forming apparatus operating environment. The present invention provides an image forming apparatus includes an image bearing member; a toner image forming unit for forming a toner image on the image bearing member; an image condition detection member for detecting an image condition of the image bearing member; a setting unit for setting a plurality of toner image forming conditions determined based on the output of the image condition detection member; an environment detection member for detecting an environment condition of outside air of the image forming apparatus; and a selection unit for selecting the toner image forming conditions set by the setting unit based on the output of the environment detection device from when the power is turned on to when transitioned to an image formable state.Type: ApplicationFiled: October 19, 2005Publication date: May 11, 2006Applicant: Canon Kabushiki KaishaInventors: Takahiro Nakase, Naoyuki Yamamoto, Hitoshi Suzuki, Toshiharu Kondo, Yasuhiro Yoshimura
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Publication number: 20060086724Abstract: An electromagnetic induction heating apparatus capable of uniformize a temperature distribution in a longitudinal direction of an induction heating member includes: an exciting coil (magnetic flux generation means); a fixation roller (induction heating member) for generating heat by electromagnetic induction heating by action of magnetic flux generated by the exciting coil the induction heating member heating a material to be heated through heat generation thereof by introducing the material to be heated into a heating portion and conveying the material to be heated in contact with the fixation roller; and magnetic flux shielding plate (magnetic flux adjusting means) for changing a distribution of a density of an effective magnetic flux which is the magnetic flux generated by the exciting coil and actable on the fixation roller, in a longitudinal direction of the heating portion perpendicular to a conveyance direction of the material to be heated.Type: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki, Yasuhiro Yoshimura, Toshiharu Kondo
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Publication number: 20060088329Abstract: An image heating apparatus includes a coil for generating a magnetic flux by current flowing therethrough; an image heating member for heating an image on a recording material which is fed therethrough, the image heating member producing heat by eddy current generated by the magnetic flux; electric power supply control means for controlling electric power supply to the coil so as to provide the image heating member with a predetermined temperature; magnetic flux adjusting means for adjusting a magnetic flux in a direction perpendicular to a feeding direction of the recording material, the magnetic flux adjusting means having a first magnetic flux adjusting portion for reducing, by relative movement thereof relative to the coil, a magnetic flux directing toward an end of the image heating member adjacent to a sheet feedable range with respect to the direction, and a second magnetic flux adjusting portion for reducing, by relative movement thereof relative to the coil, a magnetic flux directing toward the imageType: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Hitoshi Suzuki, Naoyuki Yamamoto, Takahiro Nakase, Toshiharu Kondo, Yasuhiro Yoshimura
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Publication number: 20060088327Abstract: An image heating apparatus includes a coil for generating a magnetic flux by a current flowing therethrough; an image heating member having an electroconductive layer in which an eddy current is produced by the magnetic flux by which heat is generated, the image heating member being effective to heat an image on a recording material; an electroconductive magnetic flux adjusting member movable from a first position and a second position to decrease the eddy current produced in the image heating member by the magnetic flux; a temperature sensor for sensing a temperature of image heating member; electric power control means for control electric power supplied to the coil on the basis of an output of the temperature sensor, wherein the electric power control means changes an electric power condition to be supplied to the coil before start of the movement from the first position to the second position of magnetic flux adjusting member.Type: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Takahiro Nakase, Yasuo Nami, Naoyuki Yamamoto, Hitoshi Suzuki, Toshiharu Kondo, Yasuhiro Yoshimura
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Publication number: 20060086730Abstract: An image heating apparatus includes a heating rotatable member for heating an image on a recording material in a heating nip; magnetic flux generating means for generating a magnetic flux for induction heat generation in the heating rotatable member; magnetic flux confining means for confining the magnetic flux directed toward a predetermined region of the heating rotatable member from the magnetic flux generating means; and moving means for repeatedly moving the magnetic flux confining means during a heating operation between the operating position and a retracted position retracted from the operation position, when the recording material which has a predetermined width overlapping with a part of the predetermined region is continuously heated by the apparatus.Type: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Toshiharu Kondo, Yasuhiro Yoshimura, Yasuo Nami, Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki
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Publication number: 20060088328Abstract: An image forming apparatus includes image forming means for forming an image on a recording material; a heating rotatable member for heating the heating nip on the upper in a heating nip; magnetic flux generating means for generating a magnetic flux for induction heat generation in the heating rotatable member; control means for controlling a temperature of the heating rotatable member; temperature detecting means for detecting a temperature of the heating rotatable member at a predetermined region; magnetic flux confining means for confining the magnetic flux directed toward the predetermined region of the heating rotatable member from the magnetic flux generating means in accordance with an output of the temperature detecting means; and moving means for movement the magnetic flux confining means between a magnetic-flux-confinement position and a non-magnetic-flux-confinement position, wherein when the output of the temperature detecting means indicates a temperature outside a predetermined temperature rangeType: ApplicationFiled: October 21, 2005Publication date: April 27, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Yasuhiro Yoshimura, Toshiharu Kondo, Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki
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Publication number: 20060081614Abstract: In an electromagnetic induction heating-type heating apparatus for moving a temperature decreasing member toward or apart from an effective position where a temperature in a predetermined area is decreased in order to take countermeasure against temperature rise at a non-sheet passing portion of a heating roller, a Curie temperature of the heating roller is not less than a predetermined image heating temperature and is less than a heat-resistant temperature of the heating apparatus.Type: ApplicationFiled: December 21, 2004Publication date: April 20, 2006Applicant: CANON KABUSHIKI KAISHAInventors: Yasuo Nami, Tokihiko Ogura, Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki, Toshiharu Kondo, Yasuhiro Yoshimura
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Publication number: 20050211700Abstract: Information on a temperature of a heat generation member 7 at a position which is in the neighborhood of an end portion of a conveyance area of a material S, to be heated, having a maximum size and in the neighborhood of a non-conveyance area of a material, to be heated, having a size smaller than the maximum size is detected by temperature information detection means 22 and 23, and a change means 171 lowers a target temperature of the heat generation member 7 depending on a detection result of the temperature information detection means. Thereafter, when the detection result of the temperature information detection means reaches a predetermined temperature, a magnetic flux adjusting member 18 is started to be moved by a moving means 21.Type: ApplicationFiled: March 2, 2005Publication date: September 29, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Toshiharu Kondo, Tokihiko Ogura, Yasuo Nami, Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki, Yasuhiro Yoshimura
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Publication number: 20050180787Abstract: A heating apparatus of an electromagnetic induction heating type includes a coil and a roller which generates heat by the action of magnetic flux generated from the coil. A recording material is heated by the roller. The heating apparatus further includes a movable magnetic flux decreasing member for decreasing magnetic flux, generated from the coil, acting on the roller. In the heating apparatus, a shutter is moved toward an effective position at which a temperature in a non-conveyance area is lowered when a recording material having a size lower than a maximum conveyable size is conveyed, and is moved away from the effective position depending on the temperature in the non-conveyance area, irrespective of the size of the recording material to be conveyed.Type: ApplicationFiled: December 21, 2004Publication date: August 18, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Yasuo Nami, Tokihiko Ogura, Naoyuki Yamamoto, Takahiro Nakase, Hitoshi Suzuki, Yasuhiro Yoshimura, Toshiharu Kondo
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Publication number: 20050173415Abstract: In a widthwise direction of a heating roller perpendicular to a sheet conveyance direction, an amount of magnetic flux acting on the heating roller in the neighborhood of an end portion of the heating roller is larger than that at a center portion of the eating roller, so that it is possible to prevent a lowering in temperature at the heating roller end portion. Further, in a temperature range in which a temperature of the heating roller is higher than a fixation temperature and is lower than a heat-resistant temperature of a heating apparatus, the heating roller has a temperature area in which a resistance thereof is lowered, so that it is possible to reduce temperature rise in a differential area between a large-sized sheet passing area and a small-sized sheet passing area when a sheet having a size smaller than a maximum size (non-sheet passing portion temperature rise).Type: ApplicationFiled: December 22, 2004Publication date: August 11, 2005Applicant: CANON KABUSHIKI KAISHAInventors: Naoyuki Yamamoto, Tokihiko Ogura, Yasuo Nami, Takahiro Nakase, Hitoshi Suzuki, Toshiharu Kondo, Yasuhiro Yoshimura
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Publication number: 20050012782Abstract: The disclosure is concerned with an inkjet head comprising; a chamber substrate for forming an ink flow passage; a diaphragm substrate including a diaphragm for pressurizing a pressure chamber disposed in the chamber substrate; and a nozzle substrate for jetting ink pressurized by the diaphragm, wherein the diaphragm substrate is made of silicon, the diaphragm is made of a material selected from the group of silicon oxide film and metal film, and the diaphragm is formed in the diaphragm substrate. The disclosure is also directed to a method of manufacturing the inkjet head.Type: ApplicationFiled: July 14, 2004Publication date: January 20, 2005Inventors: Yasuhiro Yoshimura, Jun Nagata, Osamu Machida, Tatsuya Nagata
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Patent number: 6843554Abstract: An ink jet head including nozzles, ink chambers, and an ink channel in fluid communication with each other. A diaphragm defines one portion of each of the ink chambers. Piezoelectric actuators are disposed in confrontation with the diaphragm in a one-to-one correspondence with the ink chambers. A relay member is provided between each piezoelectric actuator and the diaphragm. Each relay member has a first abutment surface and a second abutment surface on opposite sides thereof. Each first abutment surface abuts the diaphragm across a width that extends in the nozzle alignment direction. The width of each first abutment surface is shorter than the width of the corresponding ink chamber. Each second abutment surface is coupled to the corresponding piezoelectric actuator and has a width that extends in the nozzle alignment direction. The width of each second abutment surface is equal to or shorter than the width of the corresponding piezoelectric actuator.Type: GrantFiled: April 18, 2003Date of Patent: January 18, 2005Assignee: Hitachi Printing Solutions, Ltd.Inventors: Jun Nagata, Tomohiko Koda, Yasuhiro Yoshimura
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Publication number: 20030222945Abstract: An ink jet head including nozzles, ink chambers, and an ink channel in fluid communication with each other. A diaphragm defines one portion of each of the ink chambers. Piezoelectric actuators are disposed in confrontation with the diaphragm in a one-to-one correspondence with the ink chambers. A relay member is provided between each piezoelectric actuator and the diaphragm. Each relay member has a first abutment surface and a second abutment surface on opposite sides thereof. Each first abutment surface abuts the diaphragm across a width that extends in the nozzle alignment direction. The width of each first abutment surface is shorter than the width of the corresponding ink chamber. Each second abutment surface is coupled to the corresponding piezoelectric actuator and has a width that extends in the nozzle alignment direction. The width of each second abutment surface is equal to or shorter than the width of the corresponding piezoelectric actuator.Type: ApplicationFiled: April 18, 2003Publication date: December 4, 2003Inventors: Jun Nagata, Tomohiko Koda, Yasuhiro Yoshimura
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Patent number: 6477133Abstract: A disk drive is realized, which omits running-in for stabilizing a change in a correcting function produced by sliding between balls and a rolling groove in an unbalance correcting mechanism, and prevents immobility and straying of balls, and which comprises a unit mechanism assembled by using 12 balls subjected to surface treatment with heptadecafluorodecyltrimethoxysilane and a turntable plated with a chemical nickel plating containing phosphorus and boron to have a thickness of 5 &mgr;m and by injecting 1 microliter of ester oil into the rolling groove, and further comprises a recess formed in a sidewall of the rolling groove of the unbalance correcting mechanism to prolong the service life of the correcting function.Type: GrantFiled: August 24, 2000Date of Patent: November 5, 2002Assignee: Hitachi, Ltd.Inventors: Yasuhiro Yoshimura, Yoshishige Endo, Katsutoshi Nii, Yoshihiro Satou, Yoshiaki Yamauchi, Noriyuki Kumasaka, Kazuto Oyama, Hisahiro Miki, Tomoki Hirata
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Patent number: 6329023Abstract: A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.Type: GrantFiled: February 16, 2001Date of Patent: December 11, 2001Assignee: Hitachi, Ltd.Inventors: Hiromitsu Tokisue, Sunao Yonekawa, Nobuyuki Ishii, Yasuyuki Horiguchi, Yoshishige Endo, Yasuhiro Yoshimura, Yutaka Ito, Osamu Narisawa, Hiroshi Yuyama, Youichi Inoue, Yukiko Ikeda
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Patent number: 6283730Abstract: A micro pump is made compact and can prevent members constituting the micro pump from being chemically reacted with a working fluid, and a method of producing the same. After each of substrates constituting the micro pump is formed by a member containing a silicone as a main composition and a plurality of metal membranes are formed on a whole of a bonding surface of each of the substrates so as to form bonding surfaces, the bonding surfaces are cleaned, and the bonding surfaces are opposed to each other under a vacuum condition, overlapped, heated and pressed so as to be bonded. The valve portion has a beam and a protrusion for sealing as provided in the valve side, whereby a pressure applied to the protrusion becomes smaller than the bonding pressure.Type: GrantFiled: November 16, 1999Date of Patent: September 4, 2001Assignee: Hitachi, Ltd.Inventors: Yasuhiko Sasaki, Yasuhiro Yoshimura, Akira Koide, Ryo Miyake, Naruo Watanabe, Takao Terayama, Hiroshi Mitsumaki, Yasuhiko Ishida, Tomonari Morioka
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Publication number: 20010018094Abstract: A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.Type: ApplicationFiled: February 16, 2001Publication date: August 30, 2001Inventors: Hiromitsu Tokisue, Sunao Yonekawa, Nobuyuki Ishii, Yasuyuki Horiguchi, Yoshishige Endo, Yasuhiro Yoshimura, Yutaka Ito, Osamu Narisawa, Hiroshi Yuyama, Youichi Inoue, Yukiko Ikeda
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Patent number: 6249403Abstract: A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.Type: GrantFiled: May 18, 1998Date of Patent: June 19, 2001Assignee: Hitachi, Ltd.Inventors: Hiromitsu Tokisue, Sunao Yonekawa, Nobuyuki Ishii, Yasuyuki Horiguchi, Yoshishige Endo, Yasuhiro Yoshimura, Yutaka Ito, Osamu Narisawa, Hiroshi Yuyama, Youichi Inoue, Yukiko Ikeda
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Patent number: 6197255Abstract: A chemical analyzing apparatus comprises a reaction cell holder which holds a plurality of reaction cells that are supplied with samples and reagents at a predetermined position, a measurer for measuring characteristics of the sample, a plurality of reagent containers, a liquid deliverer provided below each of the plurality of reagent containers, one or more sound wave generators provided outside the reaction cells, and storage containers for storing cleansing liquid with different contamination states. The cleansing liquid with different contamination states is reused according to the contamination levels of the reaction cells.Type: GrantFiled: September 17, 1999Date of Patent: March 6, 2001Assignee: Hitachi, Ltd.Inventors: Ryo Miyake, Yoshihiro Nagaoka, Akira Koide, Naruo Watanabe, Yasuhiko Sasaki, Hajime Kato, Takao Terayama, Hiroshi Mitsumaki, Hiroyasu Uchida, Takeshi Shibuya, Yasuhiro Yoshimura