Patents Assigned to Denson Corporation
  • Patent number: 8760766
    Abstract: A screen member has a plurality of optical elements, each of which includes a primary curved surface and two secondary curved surface. The primary curved surface diffuses a bundle of rays of light toward a main-viewing range through a display member. Each secondary curved surface diffuses the bundle of rays of light toward a corresponding sub-viewing range through the display member. A radius of curvature of the primary curved surface is larger than a radius of curvature of the secondary curved surface.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 24, 2014
    Assignee: Denson Corporation
    Inventor: Takayuki Fujikawa
  • Patent number: 7902988
    Abstract: An illuminance sensor for detecting brightness of outside a vehicle having a windshield includes first and second light receiving elements and a light emitting element for emitting light to the windshield. The first light receiving element outputs a first signal corresponding to outside light. The light emitted from the light emitting element is reflected at an outside surface of the windshield. The second light receiving element outputs a second signal corresponding to the reflected light. The outside light passes a first region of the windshield through which the light emitted from the light emitting element passes or a second region of the windshield through which the reflected light passes. The first signal is corrected based on the second signal to detect the brightness.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: March 8, 2011
    Assignee: Denson Corporation
    Inventor: Koichi Goto
  • Publication number: 20060209776
    Abstract: An in-vehicle wireless communications device receives an incoming signal via a wireless communications unit from the wireless communications network. When the in-vehicle battery is being discharged, the type of the incoming signal is determined. When the incoming signal is for a voice call, a packet communications, or a TV phone, no incoming process for the received incoming signal takes place. In contrast, when the incoming signal received by the wireless communications circuit from the wireless communications network is an incoming signal for a short message service that becomes a trigger for vehicle remote monitoring or vehicle remote control, an incoming process to the received incoming signal is executed.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 21, 2006
    Applicant: DENSON Corporation
    Inventor: Koji Shinoda
  • Patent number: 7080819
    Abstract: A fuel injection valve includes a solenoid, which is filled with low-pressure oil. The solenoid receives a biasing means and a movable member. The movable member is actuated by the biasing means and magnetic force generated by the solenoid. The movable member includes a flat-plate portion that contacts with the solenoid and departs from the solenoid. The outer circumferential periphery of the flat-plate portion has multiple notches, through which low-pressure fuel flows into to the upper side of the flat-plate portion that has an oil passage groove, through which a center portion of flat-plate portion communicates with the outer circumferential portion of flat-plate portion. Each notch has a deepest portion that is radially most recessed from the outer circumferential periphery of the flat-plate portion. The oil passage groove is apart from a deepest portion of the notches.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: July 25, 2006
    Assignee: Denson Corporation
    Inventor: Senta Tojo
  • Patent number: 6634567
    Abstract: An expansion valve unit having a pressure detecting function includes a supercooling control expansion valve disposed in a flow path of a refrigerant sent into an evaporator of a refrigeration system constituting a refrigerating cycle to control the flow rate of the refrigerant. A pressure detector is provided at one end of the supercooling control expansion valve to detect the pressure of the refrigerant sent thereto through a passage in the expansion valve. The supercooling control expansion valve and the pressure detector are integrated with each other by a joining means.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: October 21, 2003
    Assignees: Denson Corporation, Fujikoki Corporation
    Inventors: Teruyuki Hotta, Shigeki Ito, Yasushi Yamanaka, Ryo Matsuda, Kazuhiko Watanabe, Keiji Sasaki
  • Patent number: 6510603
    Abstract: A production method of a rotor in which a lower layer slot insulator is held at a slot insulator holding portion of a combining jig, a lower layer coil bar is inserted into a coil inserting path of the combining jig and is combined integrally with the lower layer slot insulator by being pushed by a first coil inserting arrow and thereafter, set to inside of a coil integrating path of a coil holding member. The coil holding member is attached to a coil inserting device along with an armature core. The lower layer slot insulator and a lower layer coil trunk are integrally inserted into a slot of the armature core by pushing the lower layer coil bar set to inside of the coil integrating path. The upper layer coil trunk and the lower layer coil trunk may be formed integrally with respective coil arms as a single coil bar.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: January 28, 2003
    Assignee: Denson Corporation
    Inventors: Jiro Ebihara, Masayuki Takiguchi
  • Patent number: 6122594
    Abstract: A map of an entire region is divided into sections of a square of 900", each of which is further divided into blocks of a square of 30", each of which is further divided into units of a square of 1", so that a region on the map can be hierarchically designated. Each section is defined with section codes of three figures; each block is defined with block codes of three figures in accordance with its relative positional relation in the section; and each unit is defined with unit codes of three figures in accordance with its relative positional relation in the block, so that each unit can be completely differentiated with an intrinsic code of nine figures composed of those three kinds of codes. As to the section code composing the intrinsic code corresponding to the predetermined region, moreover, a number of significant digits is reduced by assigning a lower number in the code system, so that the manual operations of inputting the intrinsic code of the predetermined region can be lightened.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 19, 2000
    Assignee: Denson Corporation
    Inventors: Kazuyoshi Tamaki, Yoshimasa Furuike, Takao Mitsui
  • Patent number: 6095125
    Abstract: An ignition system includes an ignition coil which provides ignition voltage of one polarity, an igniter which supplies the primary current to the ignition coil at regular timings and a zener diode connected in series with the primary coil of the ignition coil. The zener diode shares a constant voltage drop of the opposite polarity at the secondary coil of the ignition coil, thereby reducing troublesome voltage induced in said secondary coil other than at regular ignition timings. On the other hand, the zener diode does not share the voltage drop of the ignition voltage at the regular timings, and thus no energy loss is incurred.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: August 1, 2000
    Assignee: Denson Corporation
    Inventors: Tetsuya Miwa, Yukio Kunieda, Isao Goto
  • Patent number: 6060780
    Abstract: A surface mount type semiconductor package is mounted on a printed board by bonding, by means of solder bumps signal electrodes, electrically connected to respective terminals of a semiconductor chip incorporated in the package, with lands provided on the printed board. On a mount surface of the package, there are provided auxiliary electrodes formed as electrodes which are not electrically connected to the respective terminals of the semiconductor chip and have a thickness greater than that of the signal electrodes. As a result, solder thickness is secured for the solder bumps between each signal electrode and corresponding land by the difference in thickness between the auxiliary electrode and the signal electrode.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: May 9, 2000
    Assignee: Denson Corporation
    Inventors: Tameharu Ohta, Tomohito Kunda
  • Patent number: 6057558
    Abstract: In a silicon carbide semiconductor device such as a trench gate type power MOSFET, the film thickness and the impurity concentration of a thin film silicon carbide semiconductor layer formed on a trench side face to constitute an accumulation-type channel-forming region and enable the device to operate with a low gate voltage, low on-resistance and low power loss are set so that on impression of a reverse bias voltage a pn junction between a P-type epitaxial layer and an n.sup.- -type epitaxial layer undergoes avalanche breakdown before the thin film silicon carbide semiconductor layer undergoes punch-through. By this means it is possible to obtain a target high source-drain withstand voltage.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: May 2, 2000
    Assignee: Denson Corporation
    Inventors: Tsuyoshi Yamamoto, Rajesh Kumar, Kunihiko Hara, Yuichi Takeuchi, Kazukuni Hara, Masami Naito
  • Patent number: 6014952
    Abstract: Each of a positive spline member and a negative spline member is engaged through a spline engagement with a vane rotor. Both the positive spline member and the negative spline member are securely fixed to a cam shaft by means of a bolt. The cam shaft causes an axial reciprocative movement relative to the vane rotor. Each external spline formed on the positive spline member is brought into contact at its trailing side with an internal spline of the vane rotor. Each external spline formed on the negative spline member is brought into contact at its leading side with an internal spline of the vane rotor. This arrangement eliminates any backlash formed between the internal splines of the vane rotor and the external splines of the positive and negative spline members.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: January 18, 2000
    Assignees: Denson Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Sato, Kiyoshi Sugimoto, Yoshihito Moriya, Noriyuki Iden, Shinitiro Kikuoka, Tadao Hasegawa