Patents by Inventor Yasushi Yamada

Yasushi Yamada 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: 20100182747
    Abstract: A semiconductor element cooling structure includes a plurality of semiconductor elements, and electrode structure, which has cooling medium channels therein and is electrically connected to the plurality of semiconductor elements. The electrode structure includes an alternating current electrode having the semiconductor elements on each of opposite surfaces, and a plurality of direct current electrodes holding therebetween the alternating current electrode and the semiconductor elements respectively mounted on the opposite surfaces of the alternating current electrode. Each of the alternating current electrode and the direct current electrodes has the cooling medium channels therein.
    Type: Application
    Filed: June 10, 2008
    Publication date: July 22, 2010
    Applicant: TOYOTA JIDOSHA KABUISHIKI KAISHA
    Inventors: Tadafumi Yoshida, Hiroshi Osada, Yutaka Yokoi, Yasushi Yamada
  • Publication number: 20100109016
    Abstract: Provided is a power semiconductor module in which two components are bonded by a Bi based solder material. A Cu layer is provided on the surfaces thereof to be bonded by the Bi based solder material on the two-component. Two components, i.e., the components to be bonded, are a combination of a semiconductor element and an insulating part, or a combination of an insulating part and a radiator plate. The insulating part is composed of a Cu/SiNx/Cu laminated body.
    Type: Application
    Filed: April 17, 2008
    Publication date: May 6, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Yagi, Yasushi Yamada, Ikuo Nakagawa, Takashi Atsumi, Mikio Shirai, Ikuo Ohnuma, Kiyohito Ishida, Yoshikazu Takaku
  • Patent number: 7685435
    Abstract: An development environment of a high security level is provided for a key-installed system. Development of a program for a system having an LSI device which includes a secure memory is performed by providing another LSI device having the same structure and setting the provided LSI device to a development mode which is different from a product operation mode. Alternatively, the provided LSI device is set to an administrator mode to perform development and encryption of a key-generation program. The LSI device is set to a key-generation mode to execute the encrypted key-generation program, thereby generating various keys.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: March 23, 2010
    Assignee: Panasonic Corporation
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Publication number: 20100040751
    Abstract: Provided is a method for production of a beverage, including discharging air bubbles having a median diameter of 1 to 200 ?m into a solution containing a tea extract or a tea extract solution and removing a layer of bubbles formed on a surface of the solution. The method enables to produce a beverage containing a tea extract which has a high purity quality and good flavor.
    Type: Application
    Filed: October 18, 2007
    Publication date: February 18, 2010
    Applicant: KAO CORPORATION
    Inventor: Yasushi Yamada
  • Patent number: 7662420
    Abstract: This invention relates to packaged beverages, which contain the following ingredients: (A) from 0.05 to 0.5 wt % of non-polymer catechins, (B) from 0.008 to 0.033 wt % of sodium, and (C) potassium. The weight ratio of ingredient (B) to ingredient (C) and pH fall within specific ranges, respectively.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: February 16, 2010
    Assignee: Kao Corporation
    Inventors: Yasushi Yamada, Chitoshi Shigeno
  • Patent number: 7581612
    Abstract: An IG-off-timer measures the time t_off from when an engine is stopped, or an ignition is turned off. An ECU sequentially memorizes an estimated temperature of each of heat generating portions as a memorized temperature. Immediately after the engine is re-started, the ECU sets an initial value of the estimated temperature of each heat generating portion in such a manner that the initial value reflects a temperature drop of the heat generating portion in the deactivation period of the engine. The temperature of the heat generating portion is thus accurately estimated even after re-starting of the engine. The heat generating portions are thus appropriately protected.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: September 1, 2009
    Assignees: JTEKT Corporation, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Ryouhei Shigeta, Tomoaki Kato, Akihiro Ohno, Tsuyoshi Murakami, Yasushi Yamada, Tadashi Yoshioka, Shunzo Tanaka
  • Patent number: 7544378
    Abstract: The present invention relates to a preparation process of a tea extract containing non-polymer catechins extracted from tea leaves at a high extraction percentage, having a caffeine/non-polymer catechins ratio almost equal to the natural composition of the tea leaves and having good flavor and taste with less coarse taste, which includes charging the tea leaves in a column type extractor and continuously feeding the extractor with cold or hot water. The invention also relates to a packaged tea beverage containing the tea extract.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 9, 2009
    Assignee: Kao Corporation
    Inventor: Yasushi Yamada
  • Patent number: 7546468
    Abstract: A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD1), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server 3 (UD6 and UD7). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: June 9, 2009
    Assignee: Panasonic Corporation
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Publication number: 20090138728
    Abstract: A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD1), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server 3 (UD6 and UD7). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.
    Type: Application
    Filed: April 23, 2008
    Publication date: May 28, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Patent number: 7539312
    Abstract: A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD1), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server 3 (UD6 and UD7). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: May 26, 2009
    Assignee: Panasonic Corporation
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Patent number: 7527819
    Abstract: This invention relates to packaged tea beverages, which contain the following ingredients: (A) from 0.05 to 0.5 wt. % of non-polymer catechins, (B) magnesium, and (C) water-insoluble solid particles sized from 0.2 to 0.8 ?m. The contents of the ingredient (B) and ingredient (C) fall within specific ranges. These tea beverages contain non-polymer catechins at high concentration, are free from the formation of grouts or precipitates even when stored over a long term, and have a refined taste.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: May 5, 2009
    Assignee: Kao Corporation
    Inventors: Yasushi Yamada, Chitoshi Shigeno
  • Patent number: 7490690
    Abstract: A control device is provided for electrically controlling a drive power transmission device arranged on a driving power transmission path of a front-and rear wheel drive vehicle thereby to switch the drive mode of the vehicle selectively to either of a two-wheel drive mode and a four-wheel drive mode. The control device inhibits the drive mode from being switched to that commanded to be switched to when the vehicle is traveling at a slower speed than a predetermined speed and when the rotational speed difference between front and rear wheels is larger than a predetermined value. Further, the control device gradually decreases a present torque which the driving power transmission device is transmitting before the switching of the drive mode, to a target torque which the drive power transmission device is to transmit after the switching of the drive mode, when the difference between the present and target torques is more than another predetermined valve at the time of the switching of the drive mode.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: February 17, 2009
    Assignee: JTEKT Corporation
    Inventors: Akihiro Ohno, Yasushi Yamada
  • Publication number: 20090037721
    Abstract: An development environment of a high security level is provided for a key-installed system. Development of a program for a system having an LSI device which includes a secure memory is performed by providing another LSI device having the same structure and setting the provided LSI device to a development mode which is different from a product operation mode. Alternatively, the provided LSI device is set to an administrator mode to perform development and encryption of a key-generation program. The LSI device is set to a key-generation mode to execute the encrypted key-generation program, thereby generating various keys.
    Type: Application
    Filed: July 9, 2008
    Publication date: February 5, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Makoto FUJIWARA, Yusuke NEMOTO, Junichi YASUI, Takuji MAEDA, Takayuki ITO, Yasushi YAMADA, Shinji INOUE
  • Patent number: 7396735
    Abstract: A semiconductor element heat dissipating member is provided which has excellent heat dissipation characteristics and adhesion characteristics and enables production of a semiconductor device at a low cost. A semiconductor device using the same, and a method of producing the same are also provided. The semiconductor element heat dissipating member has a conductive substrate and an electrically insulating amorphous carbon film containing hydrogen, and the electrically insulating amorphous carbon film is formed at least on a region of the conductive substrate on which region a semiconductor element is to be mounted.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: July 8, 2008
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusyo
    Inventors: Kazuyuki Nakanishi, Tadashi Oshima, Hideo Hasegawa, Hiroyuki Mori, Hideo Tachikawa, Yukio Miyachi, Yasushi Yamada, Hiroyuki Ueda, Masayasu Ishiko
  • Publication number: 20080144818
    Abstract: A secure LSI device 1 includes an encryption section 2 for encrypting a program, and an external I/F 50 for inputting/outputting a program or data from/to an external memory 100. In the encryption section 2, the operation of a private key arithmetic processing section 20 is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer 30 to be impermissible. In the external I/F 50, a program processing section 51 and a data processing section 55 are structured independently from each other.
    Type: Application
    Filed: January 22, 2008
    Publication date: June 19, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Patent number: 7340614
    Abstract: A secure LSI device 1 includes an encryption section 2 for encrypting a program, and an external I/F 50 for inputting/outputting a program or data from/to an external memory 100. In the encryption section 2, the operation of a private key arithmetic processing section 20 is prohibited with respect to a sequence whose execution is determined by a key-generation/update sequencer 30 to be impermissible. In the external I/F 50, a program processing section 51 and a data processing section 55 are structured independently from each other.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: March 4, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Patent number: 7325975
    Abstract: An optical module has a lever for bending a spring plate possessed by a cage for accommodating a case of the optical module in a direction in which a retaining hole formed through the spring plate comes off a latch formed on the case. The lever has a shaft pivotably supported on the case, a tongue disposed on one side of the shaft, and an actuator disposed on the opposite side of the shaft with respect to the tongue. The lever pivotally moves about the shaft in response to a movement of the tongue toward the case, causing the actuator to press the spring plate to bend in the foregoing direction. A user can readily release the latch by moving the tongue toward the case, and withdraw the optical module from the cage through a simple manipulation of pulling the case out while holding the case and tongue together.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: February 5, 2008
    Assignee: NEC Corporation
    Inventors: Yasushi Yamada, Masayuki Nakano
  • Patent number: 7281863
    Abstract: An improved disconnect structure for SFP optical transceiver modules uses a slide 21 that travels relative to the module housing over a limited range. The slide 21 has operating pieces 28 which are elastically displaceable to elastically displace a spring plate 18 of the cage in a direction to release the locked state. The slide initially moves relative to the module housing to deflect the spring plate downwardly and release the locked state. When the slide then reaches the end of its range of motion relative to the module housing, further withdrawal of the slide pulls the module housing along with it, removing the module form the cage.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: October 16, 2007
    Assignee: NEC Corporation
    Inventors: Yasushi Yamada, Kazufumi Takahashi
  • Publication number: 20070217614
    Abstract: A system including a secure LSI 1 establishes a communication path to/from a server 3 (UD1), and receives a common key-encrypted program generated by encryption with a common key and transmitted from the server 3 (UD6 and UD7). The received common key-encrypted program is decrypted to generate a raw program, and the raw program is re-encrypted with an inherent key to newly generate an inherent key-encrypted program, which is stored in an external memory.
    Type: Application
    Filed: May 14, 2007
    Publication date: September 20, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd
    Inventors: Makoto Fujiwara, Yusuke Nemoto, Junichi Yasui, Takuji Maeda, Takayuki Ito, Yasushi Yamada, Shinji Inoue
  • Publication number: 20070029126
    Abstract: An IG-off-timer measures the time t_off from when an engine is stopped, or an ignition is turned off. An ECU sequentially memorizes an estimated temperature of each of heat generating portions as a memorized temperature. Immediately after the engine is re-started, the ECU sets an initial value of the estimated temperature of each heat generating portion in such a manner that the initial value reflects a temperature drop of the heat generating portion in the deactivation period of the engine. The temperature of the heat generating portion is thus accurately estimated even after re-starting of the engine. The heat generating portions are thus appropriately protected.
    Type: Application
    Filed: August 1, 2006
    Publication date: February 8, 2007
    Applicants: JTEKT Corporation, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Ryouhei Shigeta, Tomoaki Kato, Akihiro Ohno, Tsuyoshi Murakami, Yasushi Yamada, Tadashi Yoshioka, Shunzo Tanaka