Patents by Inventor Minoru Takahashi

Minoru Takahashi 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: 20140004393
    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.
    Type: Application
    Filed: June 21, 2013
    Publication date: January 2, 2014
    Inventors: Minoru TAKAHASHI, Shunpei Yamazaki, Masaaki Hiroki, Kei Takahashi, Junpei Momo
  • Publication number: 20130316243
    Abstract: A power storage device including a negative electrode having high cycle performance in which little deterioration due to charge and discharge occurs is manufactured. A power storage device including a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode is manufactured, in which the negative electrode includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer includes an uneven silicon layer formed over the negative electrode current collector, a silicon oxide layer or a mixed layer which includes silicon oxide and a silicate compound and is in contact with the silicon layer, and graphene in contact with the silicon oxide layer or the mixed layer including the silicon oxide and the silicate compound.
    Type: Application
    Filed: August 28, 2012
    Publication date: November 28, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshihiko TAKEUCHI, Minoru TAKAHASHI, Takeshi OSADA, Teppei OGUNI, Takuya HIROHASHI, Hiroyuki TOMISU
  • Patent number: 8590891
    Abstract: A recording medium conveyor includes a first conveyance part conveying a recording medium; a second conveyance part conveying the conveyed recording medium toward a transfer position; a detection part detecting the position of the recording medium conveyed by the second conveyance part; a position error detection part detecting a position error between the transfer position and a position at which there is to be the recording medium when an image reaches the transfer position; a position error storage part storing the detected position errors; a steady-state position error calculation part calculating a steady-state position error from the stored position errors; a first control part controlling the conveyance speed of the first conveyance part to reduce the steady-state position error; and a second control part controlling the conveyance speed of the second conveyance part to reduce the detected position error, with the steady-state position error being reduced.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 26, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Motoharu Takahashi, Yusuke Ishizaki, Masahiro Ashikawa, Minoru Takahashi
  • Publication number: 20130273405
    Abstract: To provide a flexible, highly reliable, and sheet-like power storage device. The power storage device including a flexible substrate; a positive electrode lead and a negative electrode lead over the flexible substrate; and a plurality of power storage elements over the flexible substrate. The plurality of power storage elements each includes a stack body including a sheet-like positive electrode; a sheet-like negative electrode; and an electrolyte therebetween in an exterior body. An edge portion of the sheet-like positive electrode which extends to the outside of the exterior body is electrically connected to the positive electrode lead through a positive electrode tab provided for the exterior body. An edge portion of the sheet-like negative electrode which extends to the outside of the exterior body is electrically connected to the negative electrode lead through a negative electrode tab provided for the exterior body.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 17, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Minoru Takahashi, Ryota Tajima
  • Patent number: 8486240
    Abstract: A corrosion-resistant ceramic electrode material includes ceramic particles and, present between them, a three-dimensional network electroconducting path composed of a reductively fired product of a carbon-containing polymeric compound. This material is manufactured by a method in which a polymerization reaction of a polymerizable monomer previously contained in a ceramic slurry is performed to gel the ceramic slurry to thereby give a green body; and after drying and degreasing, the green body is fired in a reducing atmosphere.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: July 16, 2013
    Assignee: National University Corporation Nagoya Institute of Technology
    Inventors: Masayoshi Fuji, Minoru Takahashi, Jingjun Liu, Hideo Watanabe, Takashi Shirai
  • Patent number: 8480801
    Abstract: [Object] Providing a solidified ceramic body with an improved mechanical strength, wherein the solidified ceramic body is fabricated by activating ceramic powder through mechanochemical treatment and solidifying the activated ceramic powder through alkali treatment. [Method of Solution] Activated ceramic powder having mechanochemically amorphized surfaces is obtained by grinding ceramic powder which is composed of silicic acid and/or silicate at least at surfaces thereof (grinding process). Inorganic fibers and/or plastic fibers are added to the activated ceramic powder and are mixed with the activated ceramic powder (mixing process), and a solidified ceramic body is obtained by adding alkali water solution containing alkaline metal hydroxide and/or alkaline earth metal hydroxide to the powder (alkali treatment process).
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: July 9, 2013
    Assignee: National University Corporation Nagoya Institute of Technology
    Inventors: Masayoshi Fuji, Tomohiro Yamakawa, Minoru Takahashi
  • Patent number: 8474816
    Abstract: A sheet conveying device includes a first rotator, a second rotator, and a third rotator, at least one of which is configured to convey a sheet medium; a first detection unit configured to detect a first control factor for controlling a first motor that rotates the first rotator; a second detection unit configured to detect a second control factor for controlling a second motor that rotates the second rotator; a motor control unit configured to control a rotational speed of a third motor that rotates the third rotator; and a speed control unit configured to request the motor control unit to change the rotational speed of the third motor based on the sum of the first control factor and the second control factor.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: July 2, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Ishizaki, Takahisa Koike, Minoru Takahashi
  • Patent number: 8474815
    Abstract: In a transport device, a first speed control unit controls a rotating speed of a first roller driving unit to reach a first target speed, and a second speed control unit controls a rotating speed of a second roller driving unit to reach a second target speed. The second speed control unit is arranged to perform, when a print medium is transported by both a first transport roller unit and a second transport roller unit, a follower control having a response sensibility to speed fluctuations in a predetermined frequency region of a control system, which is smaller than a response sensibility when the print medium is transported by the second transport roller unit solely.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: July 2, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Minoru Takahashi
  • Publication number: 20130161900
    Abstract: A recording medium conveyor includes a first conveyance part conveying a recording medium; a second conveyance part conveying the conveyed recording medium toward a transfer position; a detection part detecting the position of the recording medium conveyed by the second conveyance part; a position error detection part detecting a position error between the transfer position and a position at which there is to be the recording medium when an image reaches the transfer position; a position error storage part storing the detected position errors; a steady-state position error calculation part calculating a steady-state position error from the stored position errors; a first control part controlling the conveyance speed of the first conveyance part to reduce the steady-state position error; and a second control part controlling the conveyance speed of the second conveyance part to reduce the detected position error, with the steady-state position error being reduced.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 27, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Motoharu TAKAHASHI, Yusuke Ishizaki, Masahiro Ashikawa, Minoru Takahashi
  • Publication number: 20130134665
    Abstract: A sheet conveying device includes a conveying roller provided on an inner side of a curved part of a conveying path of a sheet; a driving unit configured to rotate the conveying roller; a drive control unit configured to control a rotation speed of the conveying roller by the driving unit; a rotation speed detecting unit configured to detect the rotation speed of the conveying roller; a conveying unit configured to convey the sheet laid across the conveying roller and the conveying unit; a conveying speed detecting unit configured to detect a conveying speed of the sheet; and a sheet thickness detecting unit configured to detect a thickness of the sheet based on the conveying speed of the sheet detected by the conveying speed detecting unit and the rotation speed of the conveying roller detected by the rotation speed detecting unit.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Inventors: Yoshihiro ASANO, Minoru TAKAHASHI, Takahisa KOIKE
  • Publication number: 20130121715
    Abstract: An intermediate transfer device including an intermediate transfer body having a primary transfer portion and a secondary transfer portion which bears a secondary image formed by transferring a primary image from an image bearing member; a pair of secondary transfer rollers having a secondary transfer roller and a support roller provided in contact with each other via the intermediate transfer body at the secondary transfer portion, which transfers the secondary image to a recording medium at the secondary transfer portion; a variation detection device that detects an amount of variance occurring to a transfer rotation body when the recording medium is transferred to the secondary transfer portion; and an adjustment device that adjusts the distance between the pair of the secondary transfer rollers according to the amount of variance detected by the variation detection device.
    Type: Application
    Filed: December 6, 2012
    Publication date: May 16, 2013
    Inventors: Masahiro ASHIKAWA, Takahisa KOIKE, Hideyuki TAKAYAMA, Yoshihiro ASANO, Minoru TAKAHASHI
  • Patent number: 8406923
    Abstract: In an apparatus, a coordinate obtaining unit drives a robot to move a camera opposing a workpiece in a first direction such that the workpiece is captured in an FOV of the camera. The coordinate obtaining unit obtains second and third coordinates of a preset point of the robot arm in respective second and third axes of a three-dimensional coordinate system with the workpiece being captured in the FOV. The first, second, and third coordinates are defined as coordinates of a temporally defined reference point of the workpiece in the three-dimensional coordinate system. A pose determining unit drives, at a given timing, the robot arm to determine a pose of the preset point based on a positional relationship between the first, second, and third coordinates of the temporally defined reference point of the workpiece and actual coordinates of the preset point of the robot arm.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: March 26, 2013
    Assignee: Denso Wave Incorporated
    Inventors: Tsuyoshi Ueyama, Minoru Takahashi
  • Publication number: 20130052537
    Abstract: A power storage device including a negative electrode having high cycle performance in which little deterioration due to charge and discharge occurs is manufactured. A power storage device including a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode is manufactured, in which the negative electrode includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer includes an uneven silicon layer formed over the negative electrode current collector, a silicon oxide layer or a mixed layer which includes silicon oxide and a silicate compound and is in contact with the silicon layer, and graphene in contact with the silicon oxide layer or the mixed layer including the silicon oxide and the silicate compound.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshihiko TAKEUCHI, Minoru Takahashi, Takeshi Osada, Teppei Oguni, Takuya Hirohashi
  • Publication number: 20130052527
    Abstract: A power storage device in which silicon is used as a negative electrode active material layer and which can have an improved performance such as higher discharge capacity, and a method for manufacturing the power storage device are provided. A power storage device includes a current collector and a silicon layer having a function as an active material layer over the current collector. The silicon layer includes a thin film portion in contact with the current collector, a plurality of bases, and a plurality of whisker-like protrusions extending from the plurality of bases. A protrusion extending from one of the plurality of bases is partly combined with a protrusion extending from another one of the plurality of bases.
    Type: Application
    Filed: August 15, 2012
    Publication date: February 28, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshihiko Takeuchi, Minoru Takahashi, Takeshi Osada, Teppei Oguni, Kazuki Tanemura
  • Patent number: 8364064
    Abstract: An intermediate transfer device including an intermediate transfer body having a primary transfer portion and a secondary transfer portion which bears a secondary image formed by transferring a primary image from an image bearing member; a pair of secondary transfer rollers having a secondary transfer roller and a support roller provided in contact with each other via the intermediate transfer body at the secondary transfer portion, which transfers the secondary image to a recording medium at the secondary transfer portion; a variation detection device that detects an amount of variance occurring to a transfer rotation body when the recording medium is transferred to the secondary transfer portion; and an adjustment device that adjusts the distance between the pair of the secondary transfer rollers according to the amount of variance detected by the variation detection device.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: January 29, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Masahiro Ashikawa, Takahisa Koike, Hideyuki Takayama, Yoshihiro Asano, Minoru Takahashi
  • Publication number: 20120326387
    Abstract: A sheet conveying device includes a first rotator, a second rotator, and a third rotator, at least one of which is configured to convey a sheet medium; a first detection unit configured to detect a first control factor for controlling a first motor that rotates the first rotator; a second detection unit configured to detect a second control factor for controlling a second motor that rotates the second rotator; a motor control unit configured to control a rotational speed of a third motor that rotates the third rotator; and a speed control unit configured to request the motor control unit to change the rotational speed of the third motor based on the sum of the first control factor and the second control factor.
    Type: Application
    Filed: June 18, 2012
    Publication date: December 27, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuusuke Ishizaki, Takahisa Koike, Minoru Takahashi
  • Patent number: 8319155
    Abstract: An object in the present invention is to provide a column oven capable of maintaining excellent temperature stability despite ambient temperature changes around the column oven. A column oven 10 has an outer chamber 12, an inner chamber 14 disposed in the outer chamber 12, and column 16 disposed in the inner chamber 14. The outer chamber includes heater 18, fan 20 for the outer chamber for circulating air heated by the heater 18, and a temperature sensor 22 for the outer chamber for detecting temperature inside the outer chamber. The inner chamber 14 includes fans 24 for the inner chamber and a temperature sensor 26 for the inner chamber for detecting temperature inside the inner chamber. An inner chamber wall is spaced-apart from an outer chamber wall. A target temperature in the outer chamber is set based on temperature detected by the temperature sensor 26 for the inner chamber.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: November 27, 2012
    Assignee: Tosoh Corporation
    Inventors: Toru Satoh, Tadanori Sugimoto, Minoru Takahashi
  • Patent number: 8277930
    Abstract: An object of the present invention is to provide a moisture-permeable film having superior moisture permeability and flexibility at levels enabling the use thereof in the production of textile products such as clothes, while also not being susceptible to the occurrence of decreases in surface quality caused by roughening.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: October 2, 2012
    Assignee: DIC Corporation
    Inventors: Yoshinori Kanagawa, Minoru Takahashi
  • Patent number: 8228772
    Abstract: A recording/reproducing apparatus is disclosed that includes a spindle motor unit including a spindle on which a flexible recording disk is placed, a stabilizer plate disposed so as to face the recording disk, a torque detection unit configured to detect a drive torque applied to the spindle motor unit, an adjustment unit configured to adjust a gap between the recording disk and the stabilizer plate, and a determination unit configured to determine an optimal gap to be set to the gap based on the drive torque detected by the torque detection unit, in which the adjustment unit sets the optimum gap determined by the determination unit to the gap.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: July 24, 2012
    Assignees: Ricoh Company, Ltd., Nippon Hoso' Kyokai
    Inventors: Nobuaki Onagi, Yasutomo Aman, Minoru Takahashi, Haruki Tokumaru, Yoshimichi Takano, Daiichi Koide
  • Patent number: 8175506
    Abstract: A belt driving controller includes a driving roller connected to a driving axis, a plurality of driven rollers, an endless belt provided to surround the driving roller and the driven rollers in a tensioned state, a motor connected to the driving axis via a reduction mechanism; a first detector provided near the driving axis and configured to detect a rotation angle of the driving axis, a second detector configured to detect a displacement of the endless belt, and a control unit configured to control driving of the endless belt.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: May 8, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Takahashi, Koichi Kudo, Jun Yamane