Patents by Inventor Nobuyuki Arai

Nobuyuki Arai 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: 20170075085
    Abstract: A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.
    Type: Application
    Filed: November 23, 2016
    Publication date: March 16, 2017
    Inventor: Nobuyuki ARAI
  • Patent number: 9593238
    Abstract: A prepreg includes; agent-coated carbon fibers coated with a sizing agent; and a thermosetting resin composition impregnated into the sizing agent-coated carbon fibers. The sizing agent includes an aliphatic epoxy compound (A) and an aromatic epoxy compound (B1). The sizing agent-coated carbon fibers are in a shape of woven fabric or braid. The thermosetting resin composition includes a thermosetting resin (D), a thermoplastic resin (F), and a latent hardener (G). The sizing agent-coated carbon fibers have an (a)/(b) ratio in a certain range where (a) is the height of a component at a binding energy assigned to CHx, C—C, and C?C and (b) is the height of a component at a binding energy assigned to C—O in a C1s core spectrum of the surfaces of the sizing agent-coated carbon fibers analyzed by X-ray photoelectron spectroscopy.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: March 14, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi
  • Patent number: 9541721
    Abstract: A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 10, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Nobuyuki Arai
  • Patent number: 9494793
    Abstract: In a light beam scanning device, a plurality of light sources, which irradiates a plurality of light beams in a first direction and is retained by a holder, are disposed at distance from one another in a second direction orthogonal to the first direction. The plurality of light beams are incident, via a coupling optical system, to deflecting and reflecting surfaces of a deflector from a direction that is tilted with respect to a plane orthogonal to the rotational shaft of the deflector. The holder is supported by a housing of the light beam scanning device at a plurality of different positions in a third direction extending from the light source to the coupling optical system.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 15, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyuki Arai, Makoto Hirakawa, Yoshinobu Sakaue, Noboru Kusunose, Tomoya Fujii
  • Patent number: 9482866
    Abstract: An optical projection system enlarges an image on an image display element and projects the enlarged image onto a screen. The system includes the image display element, a first optical system including lens groups arranged in order from an image display element side, a lens barrel holding the lens groups, and a free-form surface lens rotationally asymmetric and made from plastic, and a second optical system including a curved mirror disposed after the first optical system, wherein the free-form surface lens is formed to decrease in thickness from an intersection point between a surface of the free-form surface lens and an optical axis of the first optical system to an outer periphery of the lens along a line extending to the outer periphery.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: November 1, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Nobuyuki Arai
  • Publication number: 20160152785
    Abstract: An epoxy resin composition including [A1] a hardener represented by Formula (1), and [B] an aromatic epoxy resin having tri- or higher functionality, wherein a carbon nuclear relaxation time T1C corresponding to a benzene ring carbon atom in the main backbone of Formula (1) assigned to 130 ppm in a solid-state 13C-NMR spectrum is 42 seconds or longer, and a prepreg and a carbon fiber-reinforced composite material obtained using the epoxy resin composition: wherein X represents any one selected from —CH2—, —O—, —CO—, —C(?O)O—, —S—, —SO2—, and —NHC(?O)—; n represents 1 to 5; and R1 to R6 each represent at least one selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group having 1 to 4 carbon atoms, an alicyclic hydrocarbon group having 4 or less carbon atoms, and an a halogen atom, wherein when X is —C(?O)O— or —NHC(?O)—, X may be in either direction.
    Type: Application
    Filed: July 10, 2014
    Publication date: June 2, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Shizue UENO, Nobuyuki ARAI, Jun MISUMI, Hiroshi TAIKO
  • Publication number: 20160134076
    Abstract: A surface-emitting light source includes a substrate including a light emitting region where plural light emitting points are disposed and a non-light emitting region located around the light emitting region; and a lens array including plural lenses and a non-lens region around the plural lenses. The substrate and the lens array are directly bonded with each other at the non-light emitting region and the non-lens region such that the plural light emitting points and the plural lenses face each other, and the lens array has a linear expansion coefficient not greater than a linear expansion coefficient of the substrate.
    Type: Application
    Filed: October 21, 2015
    Publication date: May 12, 2016
    Inventors: Nobuyuki ARAI, Keisuke IKEDA, Kenichi SHIMIZU
  • Publication number: 20160103304
    Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.
    Type: Application
    Filed: December 16, 2015
    Publication date: April 14, 2016
    Inventors: Yohei TAKANO, Hibiki TATSUNO, Nobuyuki ARAI, Hirotoshi NAKAYAMA
  • Publication number: 20160094009
    Abstract: A laser device is provided including a surface emitting laser array configured to emit light, an optical system disposed in an optical path of light that is emitted from the surface emitting laser, a laser resonator which the light passed through the optical system enters, where the optical system includes a first optical element configured to collimate the light emitted from the surface emitting laser, and a second optical element configured to collect and condense the light collimated by the first optical element.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Inventors: Kazuma IZUMIYA, Tsuyoshi SUZUDO, Naoto JIKUTANI, Yasuhiro HIGASHI, Kentaroh HAGITA, Masayuki NUMATA, Nobuyuki ARAI
  • Patent number: 9261767
    Abstract: There is provided a projection optical system capable of projecting an image formed on an image forming unit on a projection plane, which has an extremely short projection distance and a small size.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 16, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama
  • Publication number: 20160011387
    Abstract: A laser device is disclosed. The laser device includes a surface-emitting laser including a plurality of emission points, a lens array including a plurality of lenses arranged so as to correspond to a position of the surface-emitting laser; and a light condensing optical system that condenses a plurality of light fluxes emitted through the lens array and enters the condensed lights to an input end of an optical fiber. The light condensing optical system includes an aspheric lens having positive refractive power. Both of an incidence surface and an emission surface of the aspheric lens have aspheric shapes.
    Type: Application
    Filed: June 17, 2015
    Publication date: January 14, 2016
    Inventor: Nobuyuki ARAI
  • Patent number: 9221955
    Abstract: A prepreg containing a carbon fiber [A] and a thermosetting resin [B], and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber [C] and a conductive particle or fiber [D] are contained, and weight ratio expressed by [compounding amount of [C] (parts by weight)]/[compounding amount of [D] (parts by weight)] is 1 to 1000. (2) a conductive particle or fiber of which thermoplastic resin nucleus or core is coated with a conductive substance [E] is contained.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: December 29, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki Arai, Norimitsu Natsume, Kenichi Yoshioka, Junko Kawasaki, Hiroshi Takezaki
  • Publication number: 20150373641
    Abstract: A wireless network control system includes a macrocell base station configured to form a macrocell, at least one small cell base station configured to form a small cell disposed within the macrocell, and a control apparatus including a controller configured to execute a process of acquiring a first value indicating a traffic state of a wireless terminal using the macrocell and a second value indicating a traffic state of a wireless terminal using the small cell, and a process of setting OFF the small cell when an added value of the first value and the second value falls within a predetermined range related to the macrocell.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 24, 2015
    Inventors: Takeshi YAMANA, Daisuke INAGAKI, Nobuyuki ARAI, Norio OHKI, Hisatake Do, Naoya YAMAZAKI, Kiyoshi KOMATSU, Kiyofumi Hara, Kazutoshi KAWAMURA, Hiroyuki Ohhashi
  • Publication number: 20150368857
    Abstract: A prepreg containing a carbon fiber [A] and a thermosetting resin [B], and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber [C] and a conductive particle or fiber [D] are contained, and weight ratio expressed by [compounding amount of [C] (parts by weight)]/[compounding amount of [D] (parts by weight)] is 1 to 1000. (2) a conductive particle or fiber of which thermoplastic resin nucleus or core is coated with a conductive substance [E] is contained.
    Type: Application
    Filed: September 1, 2015
    Publication date: December 24, 2015
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki ARAI, Norimitsu NATSUME, Kenichi YOSHIOKA, Junko KAWASAKI, Hiroshi TAKEZAKI
  • Publication number: 20150353697
    Abstract: A prepreg containing a carbon fiber [A] and a thermosetting resin [B], and in addition, satisfying at least one of the following (1) and (2). (1) a thermoplastic resin particle or fiber [C] and a conductive particle or fiber [D] are contained, and weight ratio expressed by [compounding amount of [C] (parts by weight)]/[compounding amount of [D] (parts by weight)] is 1 to 1000. (2) a conductive particle or fiber of which thermoplastic resin nucleus or core is coated with a conductive substance [E] is contained.
    Type: Application
    Filed: August 2, 2011
    Publication date: December 10, 2015
    Inventors: Nobuyuki ARAI, Norimitsu Natsume, Kenichi Yoshioka, Junko Kawasaki, Hiroshi Takezaki
  • Patent number: 9195062
    Abstract: Each scanning optical system includes a first scanning lens and a second scanning lens through which a light beam is incident onto the first scanning lens. The second scanning lens of each scanning optical system is disposed at the optically most downstream side in the scanning optical system and has an optical plane that has the strongest power in a sub-scanning corresponding direction. In addition, the optical plane of each second scanning lens, which has the strongest power in the sub-scanning corresponding direction, is located under the shaft bearings of neighboring polygon mirrors in the vertical direction.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: November 24, 2015
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Nobuyuki Arai, Makoto Hirakawa, Naoki Miyatake, Naoto Watanabe, Tadashi Nakamura
  • Patent number: 9183684
    Abstract: In a remote control device for a vehicle including: a portable transmitter configured to repeatedly transmit a signal for giving an instruction to activate an activation device mounted in a vehicle, in response to an operation of a manipulator which is performed continuously for a predetermined time or more; and a vehicle-side receiver provided in the vehicle to activate the activation device based on the signal transmitted from the portable transmitter, the portable transmitter transmits a first signal including a data frame having at least an ID code, a function code determining an action of the activation device, and a first error detection code and then repeatedly transmits a second signal, and a data frame of the second signal having the same function code as that of the first signal and a second error detection code generated based on the function code and the data frame of the first signal.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: November 10, 2015
    Assignees: Kabushiki Kaisha Honda Lock, Omron Automotive Electronics Co., Ltd.
    Inventors: Shinichiro Eto, Yoshihito Kunimoto, Nobuyuki Arai, Yosuke Kajima, Kazunobu Kamisawa, Takanori Okaniwa
  • Publication number: 20150315331
    Abstract: Provided are: an epoxy resin composition which enables the production of a carbon-fiber-reinforced composite material having excellent tensile strength and compressive strength and suitable as a material for structures; a prepreg; and a carbon-fiber-reinforced composite material. An epoxy resin composition characterized by comprising at least [A] an epoxy resin having a structure represented by formula (1), [B] an epoxy resin having at least one amine-type glycidyl group or at least one ether-type glycidyl group and having a liquid form at 40° C. and [C] a curing agent; and a prepreg and a carbon-fiber-reinforced composite material, each produced using the epoxy resin composition. (In the formula, R1 to R4 independently represent at least one atom or group selected from the group consisting of a hydrogen atom, an aliphatic hydrocarbon group having 1 to 4 carbon atoms, an alicyclic hydrocarbon group having 4 or less carbon atoms, and a halogen atom.
    Type: Application
    Filed: October 31, 2013
    Publication date: November 5, 2015
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Jun MISUMI, Nobuyuki ARAI, Hiroshi TAIKO, Shizue UENO
  • Publication number: 20150261120
    Abstract: An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 17, 2015
    Inventors: Tomoya FUJII, Tadashi NAKAMURA, Nobuyuki ARAI, Yoshinobu SAKAUE, Noboru KUSUNOSE, Daisuke IMAKI
  • Publication number: 20150252184
    Abstract: To provide a prepreg and a carbon fiber reinforced composite material that are excellent in adhesion between a matrix resin and carbon fibers and long-term storage stability and also excellent in microcrack resistance due to the increased toughness. The present invention provides a prepreg that includes; agent-coated carbon fibers coated with a sizing agent; and a thermosetting resin composition impregnated into the sizing agent-coated carbon fibers. The sizing agent includes an aliphatic epoxy compound (A) and an aromatic epoxy compound (B1). The sizing agent-coated carbon fibers are in a shape of woven fabric or braid. The thermosetting resin composition includes a thermosetting resin (D), a thermoplastic resin (F), and a latent hardener (G).
    Type: Application
    Filed: July 16, 2013
    Publication date: September 10, 2015
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi