Patents by Inventor Masao Iwata

Masao Iwata 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: 20100031918
    Abstract: A no-contact ignition control device includes a stop switch which maintains a second switching element at the OFF state so that an induced voltage of a trigger coil triggers a first switching element and shortcircuit a generation coil. A surge absorption element is connected in parallel to the stop switch. This configuration prevents intrusion of a surge current into the ignition control circuit caused by static electricity accumulated on the surface of casing covering electronic parts of the ignition control circuit and surely avoid dielectric breakdown of the electronic parts or malfunction of the circuit by the surge current.
    Type: Application
    Filed: September 5, 2007
    Publication date: February 11, 2010
    Applicant: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Shigeyuki Suzuki, Kohsuke Watanabe
  • Publication number: 20100021918
    Abstract: An object of the present invention is to provide a method, a probe, a primer, an antibody, a reagent, and a kit for assaying an action of a pladienolide derivative to a living subject. According to the present invention, there is provided a method for assaying an action of the pladienolide derivative using splicing defect as an index.
    Type: Application
    Filed: March 5, 2008
    Publication date: January 28, 2010
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Yoshiharu Mizui, Naoko Hata, Masao Iwata, Koji Sagane, Mai Uesugi, Tadashi Kadowaki, Taku Yoshida
  • Publication number: 20090165541
    Abstract: A level adjusting circuit which adjusts input pulses from an antenna to a level suitable for determining the number of engine revolutions, is connected in a circuit that connects the antenna with a determining circuit. An optimum adjustment of the determination level by manual operation allows the pulses inputted to the determining circuit to be precisely determined at all times.
    Type: Application
    Filed: April 6, 2006
    Publication date: July 2, 2009
    Applicant: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Fumitake Matsuda, Toshiyuki Takano, Atsushi Kawahara
  • Publication number: 20090133482
    Abstract: An ignition timing measuring and display device of an internal combustion engine (1) having a magneto (A) includes a reference RPM signal pulse detector (2) for detecting a reference RPM signal pulse of the internal combustion engine (1) and an ignition noise pulse detector (4) for detecting ignition noise of an electromagnetic wave generated in the vicinity of an ignition plug (3) when ignition is carried out in the internal combustion engine (1) and calculates ignition timing generated by the magneto (A) based on the signal pulse and the ignition noise pulse and displays it. Since the ignition timing of the internal combustion engine can be easily monitored, maintenance can be carried out to the internal combustion engine and an ignition device to realize a necessary operating performance of the internal combustion engine.
    Type: Application
    Filed: April 6, 2006
    Publication date: May 28, 2009
    Applicant: Oppama Industry Co., Ltd
    Inventors: Masao Iwata, Fumitake Matsuda, Toshiyuki Takano, Atsushi Kawahara
  • Publication number: 20080280288
    Abstract: If a cancer cell sampled from a cancer patient by biopsy or the like can be examined with respect to its expressed molecules to evaluate sensitivity of the cancer cell to the present compound, the present compound can be selectively administered only to the cancer patient who is expected to benefit from antitumor activity of the present compound, thereby to enhance the therapeutic effect and reduce unnecessary adverse effects. Specifically, the characteristics of a cancer cell with respect to “low level expression of pRB”, “positive expression of p16” and “high level expression of cyclin E” are demonstrated to be useful as markers for sensitivity of the cancer cell to the present compound. Therefore, these characteristics of a cancer cell can be examined to evaluate previously sensitivity of the cancer cell to the present compound.
    Type: Application
    Filed: February 4, 2005
    Publication date: November 13, 2008
    Inventors: Toshimitsu Uenaka, Masao Iwata
  • Publication number: 20060079572
    Abstract: The present invention provides a novel bioactive substance having an antitumor activity and a process for producing it, and a medical use thereof. Namely, it provides a 12-membered ring macrolide compound represented by the following formula obtained from the incubation solution of Streptomyces sp. Mer. 11107 or a variant thereof, a pharmacologically acceptable salt thereof or a hydrate of them, and a process for producing it.
    Type: Application
    Filed: August 30, 2005
    Publication date: April 13, 2006
    Inventors: Yoshiharu Mizui, Takashi Sakai, Satoshi Yamamoto, Keisuke Komeda, Masanori Fujita, Akifumi Okuda, Kumiko Kishi, Jun Niijima, Mitsuo Nagai, Kiyoshi Okamoto, Masao Iwata, Yoshihiko Kotake, Toshimitsu Uenaka, Naoki Asai, Motoko Matsufuji, Tomohiro Sameshima, Naoto Kawamura, Kazuyuki Dobashi, Takashi Nakashima, Masashi Yoshida, Toshio Tsuchida, Susumu Takeda, Tomonari Yamada, Koji Norihisa, Takao Yamori
  • Patent number: 7026352
    Abstract: The present invention provides a novel bioactive substance having an antitumor activity and a process for producing it, and a medical use thereof. Namely, it provides a 12-membered ring macrolide compound represented by the following formula obtained from the incubation solution of Streptomyces sp. Mer.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 11, 2006
    Assignees: Mercian Corporation, Eisai Co., Ltd.
    Inventors: Yoshiharu Mizui, Takashi Sakai, Satoshi Yamamoto, Keisuke Komeda, Masanori Fujita, Akifumi Okuda, Kumiko Kishi, Jun Niijima, Mitsuo Nagai, Kiyoshi Okamoto, Masao Iwata, Yoshihiko Kotake, Toshimitsu Uenaka, Naoki Asai, Motoko Matsufuji, Tomohiro Sameshima, Naoto Kawamura, Kazuyuki Dobashi, Takashi Nakashima, Masashi Yoshida, Toshio Tsuchida, Susumu Takeda, Tomonari Yamada, Koji Norihisa, Takao Yamori
  • Patent number: 6873073
    Abstract: A rotor core, rotating in the vicinity of a generating coil, comprises a balance weight section and a pair of magnetic poles, provided on opposite sides of the balance weight section 2 with respect to a center of rotation O of the rotor core 1 to sandwich a magnet, and confronting through a magnetic gap G. A magnet holding section 9 for preventing the magnet 5 flying out through the magnetic gap G due to centrifugal force, is provided integrally contiguous to each of the magnetic poles so as to connect between the two magnetic poles.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 29, 2005
    Assignee: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
  • Patent number: 6802284
    Abstract: A fuel injection device mounted on a main body of an air-fuel mixture generating device including an electromagnetic driving-type fuel injection valve for injecting, at predetermined times, fuel into an air-intake passageway of an intake system of an internal combustion engine, and a collision plate operationally coupled to the fuel injection valve adapted to be disposed in the air-intake passageway for enabling the injected fuel to collide therewith.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: October 12, 2004
    Assignees: Oppama Industry Co., Ltd., Kioritz Corporation
    Inventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
  • Patent number: 6584957
    Abstract: A contactless ignition system is provided with an ignition charge discharge condenser for charging an induced voltage of a generating coil, a first switching element, triggered to conduct when an induced voltage of a trigger coil reaches an initial trigger level, for supplying a voltage charged into the ignition charge discharge condenser into an ignition coil, and a trigger control condenser for charging induced voltages of the generating coil and the trigger coil, and triggering of the first switching element caused by an induced voltage of the trigger coil is inhibited by a second switching element during a specified discharge time following charging of the trigger control condenser.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: July 1, 2003
    Assignee: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
  • Patent number: 6574085
    Abstract: A power supply apparatus for electrostatic charging sprayed liquids from a spraying apparatus and method for same, the apparatus including a rotor having a magnet and magnetic poles, a booster coil assembly facing the rotor, for inducing high voltage AC pulses during the rotation of the rotor, and a rectifier for rectifying the high voltage AC pulses induced by the booster coil assembly to high voltage DC pulses and for supplying the high voltage DC pulses to a charging electrode. The power supply apparatus provides a compact and lightweight power generator system, thus eliminating cumbersome operations such as replacement or recharging of a large battery. In addition, a lighter weight and simplified operation reduces the burden on users and facilitates more efficient spraying.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: June 3, 2003
    Assignees: Oppama Industry Co., Ltd., Kioritz Corporation
    Inventors: Yoshiaki Hironaka, Masao Iwata, Kiyoshige Enomoto
  • Publication number: 20030056756
    Abstract: A contactless ignition system is provided with an ignition charge discharge condenser for charging an induced voltage of a generating coil, a first switching element, triggered to conduct when an induced voltage of a trigger coil reaches an initial trigger level, for supplying a voltage charged into the ignition charge discharge condenser into an ignition coil, and a trigger control condenser for charging induced voltages of the generating coil and the trigger coil, and triggering of the first switching element caused by an induced voltage of the trigger coil is inhibited by a second switching element during a specified discharge time following charging of the trigger control condenser.
    Type: Application
    Filed: June 24, 2002
    Publication date: March 27, 2003
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
  • Publication number: 20030011263
    Abstract: A rotor core, rotating in the vicinity of a generating coil, comprises a balance weight section and a pair of magnetic poles, provided on opposite sides of the balance weight section 2 with respect to a center of rotation O of the rotor core 1 to sandwich a magnet, and confronting through a magnetic gap G. A magnet holding section 9 for preventing the magnet 5 flying out through the magnetic gap G due to centrifugal force, is provided integrally contiguous to each of the magnetic poles so as to connect between the two magnetic poles.
    Type: Application
    Filed: June 25, 2002
    Publication date: January 16, 2003
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
  • Patent number: 6467147
    Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: October 22, 2002
    Assignee: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
  • Publication number: 20020148419
    Abstract: A fuel injection device mounted on a main body of an air-fuel mixture generating device including an electromagnetic driving-type fuel injection valve for injecting, at predetermined times, fuel into an air-intake passageway of an intake system of an internal combustion engine, and a collision plate operationally coupled to the fuel injection valve adapted to be disposed in the air-intake passageway for enabling the injected fuel to collide therewith.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 17, 2002
    Inventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
  • Publication number: 20020047421
    Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.
    Type: Application
    Filed: October 18, 1999
    Publication date: April 25, 2002
    Inventors: MASAO IWATA, YOSHIKI KITAMURA, NORIO KAWAI
  • Patent number: 6354522
    Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: March 12, 2002
    Assignees: Oppama Industry Co., Ltd., Kioritz Corporation
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
  • Publication number: 20010032897
    Abstract: In an electrostatic sprayer, a pulsating voltage developed using a battery or a generator as a power supply is stepped up using a step-up transformer. A resultant high-voltage pulse is rectified and applied to an electrostatic electrode. A spray jetted from a spray nozzle is thus electrified. Herein, the step-up transformer is located near the spray nozzle. Owing to this structure, a high voltage produced by the step-up transformer can be applied to the electrostatic electrode with a loss minimized.
    Type: Application
    Filed: April 17, 2001
    Publication date: October 25, 2001
    Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
  • Patent number: 6303989
    Abstract: The present invention relates to integrated circuit devices for use in such civilian equipments as an electronic equipment, electrical equipment, communication equipment and measuring and controlling equipment, and its object is to provide an integrated circuit device which has an excellent heat radiating characteristic.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: October 16, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takeo Yasuho, Masao Iwata, Ryoichi Katsuragawa, Hayami Matsunaga, Yoshikazu Suehiro, Yasuhiko Yokota
  • Patent number: 6023828
    Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: February 15, 2000
    Assignee: Oppama Industry Co., Ltd.
    Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai