Patents by Inventor Takashi Fujita

Takashi Fujita 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: 20190121009
    Abstract: Multilayer reflective polarizers are described. More particularly, multilayer reflective polarizers having a higher block light transmission at longer wavelengths than shorter wavelengths while having a high pass light transmission are described. The described multilayer reflective polarizers may be combined with absorbing polarizers or used in display devices.
    Type: Application
    Filed: December 19, 2018
    Publication date: April 25, 2019
    Inventors: Matthew B. Johnson, Adam D. Haag, Martin E. Denker, Takashi Fujita
  • Patent number: 10226948
    Abstract: An image forming apparatus includes an image forming station for forming an image on the basis of image information; a top plate portion provided in an upper portion and including a stacking surface having a length in a predetermined direction longer than a length of a short side of a maximum size sheet on which the image forming station is capable of forming the image and shorter than a length of a long side of the maximum size sheet; a wall portion projected upwardly at a position of one end portion with respect to the predetermined direction of the top plate portion and provided with a wall surface inclined so as to form an obtuse angle between itself and the stacking surface of the top plate portion; and a connecting portion having a curved surface configured to connect the stacking surface and the wall surface with each other.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: March 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Fujita, Yoshiro Nishino, Nobuhiro Tani
  • Patent number: 10185068
    Abstract: Multilayer reflective polarizers are described. More particularly, multilayer reflective polarizers having a higher block light transmission at longer wavelengths than shorter wavelengths while having a high pass light transmission are described. The described multilayer reflective polarizers may be combined with absorbing polarizers or used in display devices.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: January 22, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew B. Johnson, Adam D. Haag, Martin E. Denker, Takashi Fujita
  • Patent number: 10162283
    Abstract: An image forming apparatus includes an exhaust duct to guide air inside the image forming apparatus to an outside of the image forming apparatus. A positive ion generator emits a positive ion into the exhaust duct. A negative ion generator emits a negative ion into the exhaust duct. The negative ion generator is shifted from the positive ion generator in one of an air flow direction of the air moving inside the exhaust duct and a direction perpendicular to the air flow direction.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 25, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Shimada, Toshiyuki Kabata, Takashi Fujita, Hiroshi Seo
  • Publication number: 20180330763
    Abstract: A data storage device may be configured with a transducing head separated from a data storage medium by an air bearing. The transducing head and data storage medium are each contained within a housing. The transducing head can consist of a variable resistance sensor that is connected to a temperature module positioned within the housing. One or more operational variables can be measured by the variable resistance sensor to allow an ambient temperature within the housing to be calculated based on a measured operational variable.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Inventors: Lihong Zhang, Samuel Gan, Xiong Liu, Tanghe Guo, Takashi Fujita
  • Patent number: 10127950
    Abstract: A data storage device may be configured with a transducing head separated from a data storage medium by an air bearing. The transducing head and data storage medium are each contained within a housing. The transducing head can consist of a variable resistance sensor that is connected to a temperature module positioned within the housing. One or more operational variables can be measured by the variable resistance sensor to allow an ambient temperature within the housing to be calculated based on a measured operational variable.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 13, 2018
    Assignee: Seagate Technology LLC
    Inventors: Lihong Zhang, Samuel Gan, Xiong Liu, Tanghe Guo, Takashi Fujita
  • Patent number: 10125104
    Abstract: The object of the present invention is to find a carotenoid compound that is excellent in water solubility. A carotenoid derivative having a formula (I): wherein X represents a carbonyl group or a methylene group, one of R1 and R2 represents (a) or (b) and the other represents (a), (b), (c) or a hydrogen atom: (a): —CO-A-B-D wherein A represents an alkylene group an alkenylene group, etc., B represents a formula of —S(O)n— or a formula of —NR4CONR5— and D represents a hydrogen atom, a carboxy group, etc., (b): —CO-E-F wherein E represents an alkylene group or a formula of —NR3— wherein R3 represents (a1) a hydrogen atom, (b1) an alkyl group etc., and F represents a sulfo group and (c): —CO-G wherein G represents a hydrogen atom, an alkyl group, etc., a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable ester or amide thereof.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 13, 2018
    Assignee: Asta Pharmaceuticals Co., Ltd.
    Inventors: Takashi Fujita, Satoshi Kobayashi, Ryoma Shinohara, Yasuhiro Nishida, Jiro Takahashi
  • Patent number: 10114322
    Abstract: A fixing device includes a fixing belt that is rotatable and a pressure rotator that is pressed against the fixing belt to form a fixing nip therebetween. A polishing roller separably contacts the fixing belt and slides over an outer circumferential surface of the fixing belt while the polishing roller is pressed against the fixing belt. At least one support supports and stretches the fixing belt. A polishing aid, which is disposed opposite the polishing roller via the fixing belt, supports and stretches the fixing belt. The polishing roller is disposed opposite the polishing aid via the fixing belt to form a polishing nip between the polishing roller and the fixing belt while the polishing roller is pressed against the fixing belt. The polishing roller changes a rotation locus of the fixing belt along at least a part of a circumferential face of the polishing roller.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: October 30, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenichi Hasegawa, Takashi Fujita, Hiroyuki Shimada, Kaori Hemmi
  • Publication number: 20180278183
    Abstract: According to one embodiment, a control system includes a chopper, a short-circuit unit, a voltage detector circuit, and a controller. The chopper reduces a direct current voltage between a converter connected to a stator in a wound induction machine and an inverter connected to a rotor in the wound induction machine. The short-circuit unit shorts a wire used for connection between the rotor and the inverter and the voltage detector circuit is to detect the direct current voltage. The controller causes driving the chopper and, at the same time, outputting from the inverter an alternating current over which a direct current component is superimposed when a voltage value exceeds a first predetermined value, and causes driving the short-circuit unit and, at the same time, halting the inverter when the voltage value exceeds a second predetermined value.
    Type: Application
    Filed: February 8, 2018
    Publication date: September 27, 2018
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions Corporation
    Inventors: Ryuta Hasegawa, Takahisa Kageyama, Kiyoshi Kusunoki, Teruyuki Ishizuki, Yuichi Shiozaki, Takashi Fujita, Hironari Kaneda
  • Patent number: 10055640
    Abstract: An apparatus extracts feature information from an object of image data. The apparatus registers the extracted feature information in a dictionary. The apparatus refers to the dictionary and determines a similarity between feature information registered in the dictionary and the extracted feature information. The apparatus does not use, of feature information to be registered in the dictionary, feature information not satisfying a predetermined evaluation criterion in similarity determination.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 21, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Nakamura, Hiroyasu Kunieda, Tetsuya Suwa, Takashi Fujita, Kiyoshi Umeda, Yusuke Hashii, Hiroyuki Sakai, Naoki Sumi
  • Patent number: 10036986
    Abstract: A fixing device includes a fixing belt being endless and rotatable in a predetermined direction of rotation. The fixing belt includes an inner circumferential face applied with a fluorine compound. A nip formation pad is not rotatable. The inner circumferential face of the fixing belt slides over the nip formation pad. A pressure rotator presses against the nip formation pad via the fixing belt to form a fixing nip between the fixing belt and the pressure rotator. At least one heater heats the fixing belt. The heater includes a glass tube filled with an inert gas containing, as a main ingredient, a substance having a first molecular weight greater than a second molecular weight of argon.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 31, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Shimada, Takashi Fujita
  • Publication number: 20180207714
    Abstract: A casting mold and a production method thereof with which exfoliation of coating is controlled and liquidity of molten metal can be maintained are provided. This casting mold 1 includes a surface processing part 3 in which a plurality of groove parts 5 of a grid groove 4 formed in a surface of a molten metal contact part of a mold material 2 is coated with a carbon film 6. In this surface processing part 3, a width W1 of the groove parts 5 is 35 ?m or narrower, skewness Ssk of three-dimensional surface roughness is in a range of ?0.8 to ?0.2, and indentation hardness of the carbon film 6 tested by a nanoindenter is 1000 N/mm2 or higher. With this arrangement, it is possible to optimize the surface processing part 3 in such a manner that a penetration rate of the molten metal (aluminum 10) is controlled to be low and the coating (carbon film 6) is unlikely to exfoliate from the groove parts 5.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 26, 2018
    Inventors: Minoru Goto, Kenji Yuki, Satoshi Sakamoto, Takashi Fujita
  • Patent number: 10001734
    Abstract: A fixing device includes an endless, rotatable fixing belt, a pressure rotator, a nip formation pad, a support, and a vibration repressor. The pressure rotator presses an outer surface of the fixing belt. The nip formation pad is disposed at an inner side of the fixing belt, to abut on the pressure rotator with the fixing belt interposed between the nip formation pad and the pressure rotator to form a fixing nip. The support is disposed at the inner side of the fixing belt, to support the nip formation pad. The vibration repressor is disposed between the nip formation pad and the support, to repress vibration of the nip formation pad.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 19, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Seo, Yuusuke Furuichi, Takashi Fujita, Daisuke Inoue, Takamasa Hase
  • Publication number: 20180149470
    Abstract: A three-dimensional coordinate measurement apparatus capable of reducing shaking of a Y carriage and improving measurement accuracy. The Y carriage is supported by two strut members which are across a surface plate and movable in a Y-axis direction. The two strut members include a first strut member having a driving mechanism and a second strut member which moves following the first strut member. A guide portion parallel to the Y-axis direction is formed in the surface plate on a first strut member side. Side surface support members support the first strut member on the surface plate by holding both opposed side surfaces of the guide portion. The driving mechanism includes a roller having an axis perpendicular to a surface plate surface, and the roller is brought into contact with one side surface of the guide portion and rolled to move the Y carriage relatively to the surface plate.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Inventors: Yukio KANNO, Keiichiro GOMI, Takashi FUJITA
  • Publication number: 20180117894
    Abstract: A plastic film has opposite side edge portions superposed and heat sealed with each other longitudinally thereof in accordance with an improved method so as to adequately heat seal the side edge portions with each other so as not to be low in seal strength and not to be impaired in appearance. A pair of heaters is disposed on the opposite side edge portions. The heaters have heating surfaces spaced from and opposed to each other and operative to preheat the side edge portions. A plurality of suction holes is formed in each of the heating surfaces. The side edge portions are attracted by the suction holes to be brought into contact with the heating surfaces.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Hideo OHNISHI, Takashi FUJITA
  • Patent number: 9921049
    Abstract: There is provided a three-dimensional coordinate measurement apparatus capable of reducing shaking of a Y carriage and improving measurement accuracy. A groove is formed along a Y-axis direction in a right side part of a surface plate made of stone, and a Y guide is formed between the groove and a right side surface of the surface plate to support a Y carriage in a portal shape in a movable manner in the Y-axis direction. A support section is provided at a lower end of a right Y carriage on the right side of the Y carriage, and the support section is supported by the surface plate through air pads which are disposed by two air pads back and forth on the corresponding one of a top surface, a right side surface, and a bottom surface, of the surface plate, and a right side surface of the groove.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: March 20, 2018
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventors: Yukio Kanno, Keiichiro Gomi, Takashi Fujita
  • Publication number: 20180073618
    Abstract: A gear keeping the bending stress at the dedendum from becoming locally high at the time of power transmission and thereby raising the dedendum bending strength is provided. The radius of curvature is maximum at a critical section position determined by the Hofer's 30° tangent method. Both of the radii of curvature from the critical section position to the first and second connecting points X1 and Y1 are constant or decreasing. In the dedendum line segment 23, there are the points A1 and B1 where the radius of curvature is smaller than the critical section position. In the dedendum line segment 23, the maximum radius of curvature is 3 times or less the minimum radius of curvature. By a cross-sectional view, the critical section position is part of an arc, and the arc extends to the two sides of the critical section position. Due to this, the maximum bending stress becomes smaller and improvement of the dedendum bending strength can be realized.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 15, 2018
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hiroki NARUMIYA, Osamu KADA, Takashi FUJITA, Yutaka NEISHI
  • Publication number: 20180059598
    Abstract: A fixing device includes a fixing belt that is rotatable and a pressure rotator that is pressed against the fixing belt to form a fixing nip therebetween. A polishing roller separably contacts the fixing belt and slides over an outer circumferential surface of the fixing belt while the polishing roller is pressed against the fixing belt. At least one support supports and stretches the fixing belt. A polishing aid, which is disposed opposite the polishing roller via the fixing belt, supports and stretches the fixing belt. The polishing roller is disposed opposite the polishing aid via the fixing belt to form a polishing nip between the polishing roller and the fixing belt while the polishing roller is pressed against the fixing belt. The polishing roller changes a rotation locus of the fixing belt along at least a part of a circumferential face of the polishing roller.
    Type: Application
    Filed: July 24, 2017
    Publication date: March 1, 2018
    Inventors: Kenichi HASEGAWA, Takashi FUJITA, Hiroyuki SHIMADA, Kaori HEMMI
  • Patent number: 9896749
    Abstract: A steel for induction hardening includes as a chemical composition, by mass %, C: 0.45% to 0.85%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%. Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The steel for induction hardening also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: February 20, 2018
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Masayuki Hashimura, Masafumi Miyazaki, Takashi Fujita, Hideaki Yamamura
  • Patent number: 9887617
    Abstract: According to one embodiment, there is provided a power conversion device, including a control unit configured to control ON/OFF of a switching element of a neutral-point-clamped power conversion device unit, wherein the control unit drives the power conversion device unit by a one-pulse control, controls a phase difference of an output voltage of the power conversion device unit with respect to a reference phase of to control an active current component of an output current of the power conversion device unit, and controls ON/OFF based on: (a) a phase angle for eliminating a predetermined odd-order harmonic component of the output voltage; and (b) a sum of the reference phase and the phase difference.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: February 6, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryuta Hasegawa, Shinya Kono, Takashi Fujita, Teruyuki Ishizuki