Patents by Inventor Motomu Hayakawa

Motomu Hayakawa 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: 20110193931
    Abstract: The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of “m×n” (in number) light emitting elements is disposed relative to each lens. The “m×n” light emitting elements comprises “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes “m” (in number) light emitting elements aligned in the axial direction.
    Type: Application
    Filed: April 12, 2011
    Publication date: August 11, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kunihiro KAWADA, Yujiro NOMURA, Motomu HAYAKAWA, Teruyuki INUKAI, Ken IKUMA
  • Patent number: 7952600
    Abstract: The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of “m×n” (in number) light emitting elements is disposed relative to each lens. The “m×n” light emitting elements comprises “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes “m” (in number) light emitting elements aligned in the axial direction.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: May 31, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Kunihiro Kawada, Yujiro Nomura, Motomu Hayakawa, Teruyuki Inukai, Ken Ikuma
  • Publication number: 20080094464
    Abstract: The invention provides an image forming apparatus and an image forming method capable of smoothly and reasonably conducting image formation in case of using a lens (lenses) of which optical magnification is minus. An image forming apparatus of the invention comprises: a line head having lenses of which optical magnification is minus and a light emitter array in which a plurality of light emitting elements are aligned. The lenses are plural in an axial direction (main scanning direction) of an image carrier and a direction (sub scanning direction) perpendicular to the axial direction. A light emitter block composed of “m×n” (in number) light emitting elements is disposed relative to each lens. The “m×n” light emitting elements comprises “n” (in number) light emitting element lines arranged in the direction perpendicular to the axial direction and each light emitting element line includes “m” (in number) light emitting elements aligned in the axial direction.
    Type: Application
    Filed: August 7, 2007
    Publication date: April 24, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kunihiro KAWADA, Yujiro NOMURA, Motomu HAYAKAWA, Teruyuki INUKAI, Ken IKUMA
  • Patent number: 7280996
    Abstract: In a case where application data stored in a PC database 300a are edited by a PC 300, and the edited contents are to be reflected to contents of the memory of a terminal database 200a, PC 300 refers to a synchronization profile SP including item IDs and ID numbers of a most recent synchronization communication and communication time information of the synchronization communication, thereby detecting which items have been edited at a time subsequent to completion of a most recent synchronization communication.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: October 9, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Motomu Hayakawa, Isao Nebashi, Masaru Kai
  • Patent number: 7265520
    Abstract: An electronic watch in which the display on a liquid crystal display 236 is prohibited when the detected output voltage of a secondary battery 220 drops to a first predefined voltage. An initialization process is performed when the detected voltage of the secondary battery 220 drops to a second voltage lower than the first voltage, and the display on the liquid crystal display unit 236 is restarted when the detected voltage of the secondary battery 220 rises to a third voltage not lower than the first voltage after having reached the second voltage.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: September 4, 2007
    Assignee: Seiko Epson Corporation
    Inventors: Tsukasa Kosuda, Norimitsu Baba, Hajime Kurihara, Motomu Hayakawa
  • Patent number: 7065668
    Abstract: By using a CR oscillating circuit and a PLL oscillating circuit selectively, these two oscillating circuits are used as a high frequency, low power consumption, short waiting time for stable oscillation, and low operating voltage oscillating circuit.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: June 20, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Tsukasa Kosuda, Motomu Hayakawa
  • Patent number: 6888355
    Abstract: A voltage and internal resistance of a battery are measured in advance as its capacity decreases. In a flash memory of a device powered by the battery, voltages necessary to drive a motor, an EL display, and a bezel input unit are stored. By comparing the voltage of the battery with a resistor connected as a dummy load and the voltage read from the flash memory, it can be determined whether it is possible to drive the motor, the EL display, or the bezel input unit.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: May 3, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Koji Kitazawa, Hajime Kurihara, Motomu Hayakawa, Tsukasa Kosuda, Katsuyuki Honda
  • Publication number: 20050030112
    Abstract: By using a CR oscillating circuit and a PLL oscillating circuit selectively, these two oscillating circuits are used as a high frequency, low power consumption, short waiting time for stable oscillation, and low operating voltage oscillating circuit.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 10, 2005
    Inventors: Tsukasa Kosuda, Motomu Hayakawa
  • Patent number: 6721540
    Abstract: An electronic device in which electrical power transfer and data transfer are performed by exchanging physical energy between a station and an electronic watch. In the station, a packet creating circuit creates either a charging packet or a data packet. The station transmits the created packet to the electronic watch using electromagnetic coupling. In the electronic watch, a packet determining circuit determines the format of the transmitted packet. The charging operation of a secondary battery and the writing operation of the transferred data to a memory are switched in accordance with the determination result of the packet determination circuit.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: April 13, 2004
    Assignee: Seiko Epson Corporation
    Inventor: Motomu Hayakawa
  • Publication number: 20030154187
    Abstract: In a case where application data stored in a PC database 300a are edited by a PC 300, and the edited contents are to be reflected to contents of the memory of a terminal database 200a, PC 300 refers to a synchronization profile SP including item IDs and ID numbers of a most recent synchronization communication and communication time information of the synchronization communication, thereby detecting which items have been edited at a time subsequent to completion of a most recent synchronization communication.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 14, 2003
    Inventors: Motomu Hayakawa, Isao Nebashi, Masaru Kai
  • Publication number: 20030146736
    Abstract: An electronic watch in which the display on a liquid crystal display 236 is prohibited in the case where the output voltage of a secondary battery 220 drops and reaches a first voltage based on the result of detecting the voltage of the secondary battery 220, the initialization processing is performed in the case where the voltage of the secondary battery 220 drops and reaches a second voltage lower than the first voltage, and the display on the liquid crystal display unit 236 is restarted in the case where the voltage of the secondary battery 220 reaches a third voltage not lower than the first voltage after reaching the second voltage.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 7, 2003
    Inventors: Tsukasa Kosuda, Norimitsu Baba, Hajime Kurihara, Motomu Hayakawa
  • Publication number: 20030146755
    Abstract: A voltage and internal resistance of a battery are measured in advance as its capacity decreases. In a flash memory of a device powered by the battery, voltages necessary to drive a motor, an EL display, and a bezel input unit are stored. By comparing the voltage of the battery with a resistor connected as a dummy load and the voltage read from the flash memory, it can be determined whether it is possible to drive the motor, the EL display, or the bezel input unit.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 7, 2003
    Inventors: Koji Kitazawa, Hajime Kurihara, Motomu Hayakawa, Tsukasa Kosuda, Katsuyuki Honda
  • Patent number: 6575618
    Abstract: An information processing device to which data can be input by the use of a rotary bezel. A pulse-count detection sensor unit 32 and a rotational-direction detection sensor unit 33 read an optical pattern which is formed on the rotary bezel to generate a series of pulse signals. The pulse-count detection sensor unit 32 and the rotational-direction detection sensor unit 33 are arranged such that a phase difference occurs between the signals of the sensor unit 32 and the signals of the sensor unit 33, so that it is possible to detect the rotational direction of the rotary bezel. A data-signal generating element 81 generates a data signal on the basis of the detected rotational angle and the pulse count generated by the pulse-count detection sensor unit 32.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: June 10, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Shigeki Inoue, Yoshito Uzawa, Hajime Kurihara, Motomu Hayakawa
  • Publication number: 20030070106
    Abstract: By using a CR oscillating circuit and a PLL oscillating circuit selectively, these two oscillating circuits are used as a high frequency, low power consumption, short waiting time for stable oscillation, and low operating voltage oscillating circuit.
    Type: Application
    Filed: March 29, 2001
    Publication date: April 10, 2003
    Inventors: Tsukasa Kosuda, Motomu Hayakawa
  • Patent number: 6469472
    Abstract: In an electronic device in which a charge path to a secondary battery and a signal path to a reception device are partially shared and a receiving-time current due to the reception is made to be a charging current for the secondary battery, even in a case in which the voltage across the secondary battery is close to a maximum voltage, by bypassing the charging current due to the signal reception, the voltage across the secondary battery is controlled so as not to exceed the maximum voltage.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: October 22, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Ichiro Aoshima, Motomu Hayakawa, Tsukasa Kosuda, Katsuyuki Honda
  • Patent number: 6316909
    Abstract: A first circuit having a first coil electrically charges a second circuit having a second coil through electromagnetic coupling of the two coils. When data signals are to be transferred between the first and second circuits, signal transfer is started only after the second circuit has been charged for a predetermined period of time. The position relationship between the coils is also detected, and a charging/transfer selector changes a duty ratio between charge transfer and data transfer in accordance with the detected result. The charge is transferred in an intermittent manner, and the charging rate is adjusted according to the difference between the voltage of a secondary battery observed during a charging phase and the voltage of the secondary battery observed a certain time after interruption of the charging phase, or vice versa.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: November 13, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Honda, Motomu Hayakawa, Ichiro Aoshima, Tsukasa Kosuda
  • Patent number: 6313612
    Abstract: An electronic unit for charging a unit to be charged having an accumulator section which can be repeatedly charged has a charging section for charging the accumulator section according to a charging control signal and a charging control section. The charging control section monitors a battery voltage (or a charging current), and maintains an effective charging period per unit time for a long term when the battery voltage (or the charging current) of an accumulator battery is lower than a limit voltage (or the charging current corresponding to the limit voltage) selected in advance. After the battery voltage (or the charging current) reaches the limit voltage (or the charging current corresponding to the limit voltage), however, the charging control section reduces the effective charging period per unit time.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: November 6, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Honda, Motomu Hayakawa, Tsukasa Kosuda
  • Patent number: 6265789
    Abstract: In at least two separated devices, a data transmission or a power transmission is performed through the electromagnetic coupling of coils which are arranged in mutually facing positions in the respective devices. In order to reduce the effect of a displacement between two coils even if the two coils are displaced from each other, the inner diameter of a coil 110 on the side of a station, as a primary coil, for performing the data transmission or the power transmission, is set to be larger than the inner diameter of a coil 210 on a watch side, as a secondary coil, by at least 1 mm.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: July 24, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Katsuyuki Honda, Motomu Hayakawa, Ichiro Aoshima, Hidetoshi Matsuki
  • Patent number: 6217523
    Abstract: An apparatus for detecting pulse waves and motion intensity of a living body in motion is disclosed. The apparatus has photosensors of the photo-coupler type for wavelengths of 660 nm and 940 nm, respectively. The sensors are attached to a person under examination, and provide output signals which include a blood pulse signal as well as body motion components superimposed on the blood pulse signal. These signals are subjected to the Fourier transformation in a fast Fourier transformation circuit, and then applied to a comparator which in turn compares amplitudes of major frequency components (components associated with pulse waves and body motion) to one another. According to the comparison result, a decision circuit discriminates the pulse wave from the body motion. A display unit displays the pulse rate corresponding to the fundamental frequency of the detected pulse wave. The display unit also displays the change in motion intensity detected by the decision circuit.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 17, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Kazuhiko Amano, Motomu Hayakawa, Koji Kitazawa
  • Patent number: 6129676
    Abstract: A movement rate monitor comprises extraction circuitry for extracting a selected movement frequency component from a power spectrum output of a movement sensor, and a movement rate calculation circuit for calculating movement rate in accordance with the extracted frequency component. A display device may be included to display the calculated movement rate.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: October 10, 2000
    Assignee: Seiko Instruments Inc.
    Inventors: Hiroshi Odagiri, Keisuke Tsubata, Chiaki Nakamura, Kazumi Sakumoto, Naokatsu Nosaka, Motomu Hayakawa