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).
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Publication number: 20100031918Abstract: 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: ApplicationFiled: September 5, 2007Publication date: February 11, 2010Applicant: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Shigeyuki Suzuki, Kohsuke Watanabe
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Publication number: 20100021918Abstract: 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: ApplicationFiled: March 5, 2008Publication date: January 28, 2010Applicant: Eisai R&D Management Co., Ltd.Inventors: Yoshiharu Mizui, Naoko Hata, Masao Iwata, Koji Sagane, Mai Uesugi, Tadashi Kadowaki, Taku Yoshida
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Publication number: 20090165541Abstract: 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: ApplicationFiled: April 6, 2006Publication date: July 2, 2009Applicant: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Fumitake Matsuda, Toshiyuki Takano, Atsushi Kawahara
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Publication number: 20090133482Abstract: 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: ApplicationFiled: April 6, 2006Publication date: May 28, 2009Applicant: Oppama Industry Co., LtdInventors: Masao Iwata, Fumitake Matsuda, Toshiyuki Takano, Atsushi Kawahara
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Publication number: 20080280288Abstract: 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: ApplicationFiled: February 4, 2005Publication date: November 13, 2008Inventors: Toshimitsu Uenaka, Masao Iwata
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Publication number: 20060079572Abstract: 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: ApplicationFiled: August 30, 2005Publication date: April 13, 2006Inventors: 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
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Patent number: 7026352Abstract: 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: GrantFiled: February 1, 2002Date of Patent: April 11, 2006Assignees: 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
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Patent number: 6873073Abstract: 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: GrantFiled: June 25, 2002Date of Patent: March 29, 2005Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
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Patent number: 6802284Abstract: 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: GrantFiled: April 11, 2002Date of Patent: October 12, 2004Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
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Patent number: 6584957Abstract: 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: GrantFiled: June 24, 2002Date of Patent: July 1, 2003Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
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Patent number: 6574085Abstract: 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: GrantFiled: September 6, 2000Date of Patent: June 3, 2003Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Yoshiaki Hironaka, Masao Iwata, Kiyoshige Enomoto
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Publication number: 20030056756Abstract: 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: ApplicationFiled: June 24, 2002Publication date: March 27, 2003Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
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Publication number: 20030011263Abstract: 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: ApplicationFiled: June 25, 2002Publication date: January 16, 2003Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiki Kitamura, Shigeyuki Suzuki
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Patent number: 6467147Abstract: 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: GrantFiled: October 18, 1999Date of Patent: October 22, 2002Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai
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Publication number: 20020148419Abstract: 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: ApplicationFiled: April 11, 2002Publication date: October 17, 2002Inventors: Yoshiaki Hironaka, Michiyasu Kuwano, Masao Iwata, Kiyoshige Enomoto
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Publication number: 20020047421Abstract: 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: ApplicationFiled: October 18, 1999Publication date: April 25, 2002Inventors: MASAO IWATA, YOSHIKI KITAMURA, NORIO KAWAI
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Patent number: 6354522Abstract: 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: GrantFiled: April 17, 2001Date of Patent: March 12, 2002Assignees: Oppama Industry Co., Ltd., Kioritz CorporationInventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
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Publication number: 20010032897Abstract: 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: ApplicationFiled: April 17, 2001Publication date: October 25, 2001Inventors: Masao Iwata, Kiyoshige Enomoto, Yoshiaki Hironaka, Shunsuke Nakamura
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Patent number: 6303989Abstract: 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: GrantFiled: February 16, 1996Date of Patent: October 16, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takeo Yasuho, Masao Iwata, Ryoichi Katsuragawa, Hayami Matsunaga, Yoshikazu Suehiro, Yasuhiko Yokota
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Patent number: 6023828Abstract: 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: GrantFiled: June 26, 1997Date of Patent: February 15, 2000Assignee: Oppama Industry Co., Ltd.Inventors: Masao Iwata, Yoshiki Kitamura, Norio Kawai