Patents by Inventor Hiromichi Yamada

Hiromichi 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: 20030108636
    Abstract: A clamping apparatus includes upper and lower platens; one or more tiebars for connecting the platens; an intermediate platen provided between the upper and lower platens for movement relative to and along the tiebars. Upper and lower mold halves are provided on the upper and intermediate platens, respectively. A linkage is provided for connecting the lower and intermediate platens. The linkage includes upper and lower links connected with each other for rotation on an intermediate shaft. The upper and lower links are pivotably supported on first and second shafts fixed on the intermediate and lower platens, respectively. The intermediate shaft is operatively connected with the drive mechanism so that the mechanism transmits a driving force to the linkage, so that the lower platen is moved relative to the intermediate platen. A set of radial needle bearing and thrust bearing is used for at least one of the intermediate, first and second shafts.
    Type: Application
    Filed: October 4, 2002
    Publication date: June 12, 2003
    Applicants: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Company Limited
    Inventors: Hiroyoshi Harada, Itaru Matsuo, Takehiko Ikegami, Hiromichi Yamada, Junji Sakakibara, Hiroaki Tanoue
  • Patent number: 6540473
    Abstract: A robot vehicle for hot-line job for transmission and distribution lines which comprises an insulating boom formed of an insulating material at a tip end stage of multiple stage booms, a base end of which is supported on an elevated work vehicle to be capable of swinging, pivoting up and down, and extending and contracting, and a frame provided on the tip end of the insulating boom, the frame mounting thereon double arm manipulators of multishaft construction for performing a distribution work, a slide device for sliding independently these right and left double arm manipulators front to rear, and lifting arms of multishaft construction having a function of lifting a heavy article, so as to allow an operator to perform remote control. An electric actuator is used for driving the double arm manipulators and the slide device, and hydraulic manipulators for driving the lifting arms.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 1, 2003
    Assignees: Kabushiki Kaisha Yaskawa Denki, Kyushu Electric Power Co., Inc.
    Inventors: Hirofumi Inokuchi, Toshihide Tomiyama, Yoshihiro Yurita, Shinji Murai, Yusuke Hirano, Shinji Harada, Kengo Tsuruta, Youichi Motomura, Kazutoshi Imai, Yoshiaki Haga, Yoshikatsu Nakamura, Yukio Hashiguchi, Mitsuhiro Matsuzaki, Hiromichi Yamada, Akihiko Mishima, Yoshinaga Maruyama, Kyoji Yano, Moriyuki Nakashima, Osamu Yamashita
  • Patent number: 6539322
    Abstract: A sensor device is provided which included a digital arithmetic processing unit which performs arithmetic processing through a program stored therein in advance, a pulse generator for generating pulses through the program, and a unit for causing the output voltage of the sensor device to stay at either a power source voltage concerned or the ground voltage, when the pulses from the pulse generator are interrupted, thereby, a sensor device using digital arithmetic processing and outputting analogue voltages is provided allowing the host system to judge easily whether the sensor device is operating normally or is failing.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: March 25, 2003
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Masahiro Matsumoto, Kohei Sakurai, Fumio Murabayashi, Hiromichi Yamada, Tatsumi Yamauchi, Atsushi Miyazaki, Keiji Hanzawa
  • Patent number: 6538866
    Abstract: A circuit for protecting a load from an overvoltage can be integrated together with the load on the same chip by an MOS transistor manufacture process. This overvoltage protecting circuit is composed of a surge protection circuit, an overvoltage detecting circuit and a switching circuit. The surge protection circuit including two MOS transistors operates so that a surge voltage applied to a power supply receiving terminal is clamped by virtue of the source-drain breakdown voltage of the two MOS transistors, thereby absorbing the surge energy. The overvoltage detecting circuit including two MOS transistors operates so that a DC voltage supplied from the surge protection circuit is monitored with the source-drain voltage of the two MOS transistors taken as a reference voltage, thereby detecting an overvoltage. An overvoltage detection output brings an MOS transistor of the switching circuit into a turned-off condition to protect the load.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: March 25, 2003
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Keiji Hanzawa, Masahiro Matsumoto, Fumio Murabayashi, Tatsumi Yamauchi, Hiromichi Yamada, Kohei Sakurai, Atsushi Miyazaki
  • Patent number: 6530764
    Abstract: A resin-sealing mold for encapsulating a semiconductor device includes upper and lower molds with a first cavity insert forming a cavity side face portion; a first elastic post supporting the first cavity insert; an elastic plate, built in the first cavity insert, forming a cavity bottom portion; a second cavity insert embedded at a position adjacent to the elastic plate on the side opposite to the cavity; a second elastic post supporting the second cavity insert; a retainer including the first cavity insert and the second cavity insert; and a backing plate to which the first elastic post, the second elastic post and the retainer are attached. Generation of thin burrs that tend to appear on the periphery of the package and in the vicinity of the cull section is prevented, and, consequently, a resin-sealing mold with high reliability is produced.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: March 11, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshiyuki Mishima, Tetsuya Hirose, Hideji Aoki, Hiromichi Yamada, Toru Ueno, Kiyoharu Kato
  • Publication number: 20030033482
    Abstract: A micro-controller includes a dictionary memory for storing instruction codes which appear in a program, and a compressed code memory for storing compressed codes each converted from each of the instruction codes included in the program. Each compressed code has a word length sufficiently long to identify all instruction codes included in the program. Each compressed code has a value indicative of an address in the dictionary memory at which an associated instruction code is stored. The micro-controller is responsive to an instruction code read request which specifies an address of a compressed code to read the compressed code stored in the specified address in the compressed code memory, and to subsequently read an instruction code stored in an address indicated by the compressed code in the dictionary memory.
    Type: Application
    Filed: July 24, 2002
    Publication date: February 13, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Hiromichi Yamada, Dai Fujii, Yasuhiro Nakatsuka, Takashi Hotta, Kotaro Shimamura, Tatsuki Inuduka, Takanaga Yamazaki
  • Publication number: 20030033504
    Abstract: A micro-controller includes a dictionary memory for storing instruction codes which appear in a program, and a compressed code memory for storing compressed codes each converted from each of the instruction codes included in the program. Each compressed code has a word length sufficiently long to identify all instruction codes included in the program. Each compressed code has a value indicative of an address in the dictionary memory at which an associated instruction code is stored. The micro-controller is responsive to an instruction code read request which specifies an address of a compressed code to read the compressed code stored in the specified address in the compressed code memory, and to subsequently read an instruction code stored in an address indicated by the compressed code in the dictionary memory.
    Type: Application
    Filed: March 20, 2002
    Publication date: February 13, 2003
    Inventors: Hiromichi Yamada, Dai Fujii, Yasuhiro Nakatsuka, Takashi Hotta, Kotaro Shimamura, Tatsuki Inuduka, Takanaga Yamazaki
  • Publication number: 20030015955
    Abstract: The luminance of phosphor is enhanced by forming a phosphor screen of a fluorescence generation unit by phosphor expressed by the following composition formula and a display using a white light the luminescent color of which is improved and which has an excellent characteristic is acquired.
    Type: Application
    Filed: February 14, 2002
    Publication date: January 23, 2003
    Inventors: Masatoshi Shiiki, Choichiro Okazaki, Teruki Suzuki, Shin Imamura, Masaaki Komatsu, Hiromichi Yamada
  • Publication number: 20020174272
    Abstract: In a DMA controller having such a structure capable of readily changing a total channel number, a channel number depending unit for handling a signal related to the total channel number; an instance capable unit which can be repeatedly used plural times equal to the total channel number; and also a channel number not-depending unit are extracted from the respective functions of the DAM controller. Then, these extracted units are combined with each other so as to constitute a functional block of the DMA controller circuit. In such a case that a total device number is changed, since only the channel number depending unit may be merely corrected, a total number of correcting stages can be reduced. The reuse rate of the channel number not-depending unit may be increased.
    Type: Application
    Filed: September 24, 2001
    Publication date: November 21, 2002
    Inventors: Dai Fujii, Ryo Fujita, Hiromichi Yamada, Koutarou Shimamura, Teppei Hirotsu, Kesami Hagiwara, Hideyuki Hara, Takashi Hotta
  • Patent number: 6477319
    Abstract: An image recording apparatus for recording image data from an external apparatus is provided, which receives the image data as an image signal from the external apparatus, records the received image signal, and outputs a characteristic signal regarding a recording characteristic of the recording apparatus to the external apparatus.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: November 5, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michio Ito, Masaharu Ohkubo, Hiroshi Sasame, Hiromichi Yamada, Masaki Ojima, Kaoru Seto, Hiroshi Mano, Atsushi Kashihara, Takashi Kawana
  • Patent number: 6464110
    Abstract: An implement enabling a user to positively split-inject various kinds of perfumes by a simple attaching/detaching operation is provided. The implement includes a multi-stage engaging unit 21 to be fitted to the outlet of a container 8 for storing therein perfume, a push-operation head 2 provided with an outlet hole opened at the center of the engaging unit 21, and a dispensing pipe 1 connected to the outlet hole, whereby it is possible to split-inject small amounts of perfumes for transfer into separate containers and carry a plurality of kinds of perfume.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: October 15, 2002
    Assignee: Yamada Atomizer Company Limited
    Inventor: Hiromichi Yamada
  • Patent number: 6462580
    Abstract: The object of the present invention to provide a semiconductor integrated circuit device wherein the input signal is made to have a low amplitude to shorten transition time of the input signal, said integrated circuit device operating at a low power consumption, without flowing of breakthrough current, despite entry of the input signal featuring low-amplitude operations, and said integrated circuit device comprising a gate circuit, memory and processor.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: October 8, 2002
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Yoji Nishio, Kosaku Hirose, Hideo Hara, Katsunori Koike, Kayoko Nemoto, Tatsumi Yamauchi, Fumio Murabayashi, Hiromichi Yamada
  • Patent number: 6458295
    Abstract: A novel phosphor represented by the general formula (Gd1−xCex)3Al5−yGayO12 (wherein x and y are values falling in the ranges of 0.0005≦x≦0.02, and 0<y<5.) was provided. The phosphor has a high luminous efficiency when Al and Ga are coexistent in the Gd-system phosphor. In particular, the phosphor with the Ga content (y) in the range of 2-3 has a luminous efficiency of twice the conventional phosphor. A radiation detector using this phosphor as ceramic scintillator is capable of obtaining a high luminous output and a very small afterglow.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: October 1, 2002
    Assignee: Hitachi Medical Corporation
    Inventors: Hiromichi Yamada, Makoto Sato, Ichiro Miura, Motomichi Doi, Takaaki Kobiki
  • Publication number: 20020130683
    Abstract: A semiconductor integrated circuit device, responsive to an input signal having a low amplitude and short transition time, operates with low power consumption and prevents the flow of breakthrough current. In an example circuit thereof, the input signal is transmitted through an NMOS pass transistor to the gate of a first NMOS transistor and is applied, through a second NMOS transistor, to the gate of a first PMOS transistor, the first PMOS transistor performing complementary operation with the first NMOS transistor through the second NMOS transistor; the gate of the first PMOS transistor is connected to the power supply potential through the second PMOS transistor; the gate of the second NMOS transistor is connected to the power supply potential; and the gate of the second PMOS transistor is controlled by the signal at a common drain connection of the first NMOS and first PMOS transistors.
    Type: Application
    Filed: May 14, 2002
    Publication date: September 19, 2002
    Inventors: Yoji Nishio, Kosaku Hirose, Hideo Hara, Katsunori Koike, Kayoko Nemoto, Tatsumi Yamauchi, Fumio Murabayashi, Hiromichi Yamada
  • Patent number: 6404110
    Abstract: A surface acoustic wave element includes a surface acoustic wave substrate, an interdigital transducer electrode provided on the surface acoustic wave substrate and a lead electrode provided on the surface acoustic wave substrate. The lead electrode is connected to the interdigital transducer electrode. The surface acoustic wave element further includes a bump electrode provided on a portion of the lead electrodes. The bump electrode includes a first electrode structure and a second electrode structure. The first electrode structure has a top surface and is arranged in contact with the lead electrode, and the second electrode structure covers a portion of the top surface of the first electrode structure such that the remaining portion of the top surface of the first electrode structure is exposed along an entire periphery of the top surface of the first electrode structure.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: June 11, 2002
    Assignee: Murata Manufacturing Co., LTD
    Inventors: Koji Nakashima, Hideya Morishita, Hiromichi Yamada
  • Publication number: 20020063511
    Abstract: Green-emitting phosphor having a composition formula represented by (Y1-x-aGdxMa)3-3yTb3y(Al1-zGaz)5O12, where 0<x≦1, 0≦a<1, 0<x+a≦1, 0<y<1 and 0≦z≦1 and M is at least one of Sc, Yb and La, improves emission color of phosphors of Y3(Al, Ga)5O12:Tb series, and in case that y=0.07, z=0.4 and a=0 in the foregoing composition, color y is increased with increasing Gd concentration, when Gd concentration x is changed, and the emission color becomes clear green.
    Type: Application
    Filed: March 20, 2001
    Publication date: May 30, 2002
    Inventors: Shin Imamura, Masatoshi Shiiki, Hiromichi Yamada, Masaaki Komatsu
  • Publication number: 20020012716
    Abstract: In a resin-sealing mold of a semiconductor device, each of the upper and lower molds is provided with: a first cavity insert for forming a cavity side face portion; a first elastic post for supporting the first cavity insert; an elastic plate, built in the first cavity insert, for forming a cavity bottom portion; a second cavity insert embedded at a position adjacent to the elastic plate on the side opposite to the cavity; a second elastic post for supporting the second cavity insert; a retainer including the first cavity insert and the second cavity insert; and a backing plate to which the first elastic post, the second elastic post and the retainer are attached. It becomes possible to prevent the generation of thin burrs that tend to appear on the periphery of the package and in the vicinity of the cull section, and consequently to provide a resin-sealing mold with high reliability.
    Type: Application
    Filed: January 29, 2001
    Publication date: January 31, 2002
    Inventors: Yoshiyuki Mishima, Tetsuya Hirose, Hideji Aoki, Hiromichi Yamada, Toru Ueno, Kiyoharu Kato
  • Patent number: 6340436
    Abstract: A phosphor represented by the general formula (L1-x-y-z-dEuxCezM′d)2O2S (wherein L is at least one element selected from the group consisting of Gd, La and Y, M is at least one element selected from the group consisting of Tb and Pr, M′ is at least one element selected from the group consisting of Ca, Sr and Zn, and x, y, z and d are values falling in the ranges of 0.001≦×≦0.06, 0<y≦12×10−5, 0<z≦12×10−5, and 0≦d≦2.5×10−4) and manufactured by the hot hydrostatic pressing method. The phosphor has a high light permeability, a high luminous efficacy and a reduced after-glow. A radiation detector comprising a combination of this phosphor with silicon photodiode has an excellent wave length matching capability, is capable of obtaining a high luminous output, and is suitably used as an X-ray detector of an X-ray CT unit or the like.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: January 22, 2002
    Assignee: Hitachi Medical Corporation
    Inventors: Hiromichi Yamada, Ichiro Miura, Motomichi Doi, Osamu Miyazaki, Minoru Yoshida
  • Publication number: 20010056568
    Abstract: In logical compound of inter-subblock paths, circuits including all inter-subblock paths are generated. Logical compound is conducted for the generated circuits to achieve logical compound of the inter-subblock paths. By treating inter-subblock paths as intra-subblock paths, no input/output delay restriction is required for the logical compound of inter-subblock paths. This makes it possible to fully use performance of the logical compound tool, and hence the inter-subblock paths can be optimized through one operation of the processing.
    Type: Application
    Filed: February 26, 2001
    Publication date: December 27, 2001
    Inventors: Teppei Hirotsu, Ryo Fujita, Kotaro Shimamura, Hiromichi Yamada, Dai Fujii, Haruyuki Nakayama
  • Publication number: 20010055525
    Abstract: A robot vehicle for hot-line job for transmission and distribution lines which comprises an insulating boom formed of an insulating material at a tip end stage of multiple stage booms, a base end of which is supported on an elevated work vehicle to be capable of swinging, pivoting up and down, and extending and contracting, and a frame provided on the tip end of the insulating boom, the frame mounting thereon double arm manipulators of multishaft construction for performing a distribution work, a slide device for sliding independently these right and left double arm manipulators front to rear, and lifting arms of multishaft construction having a function of lifting a heavy article, so as to allow an operator to perform remote control. An electric actuator is used for driving the double arm manipulators and the slide device, and hydraulic manipulators for driving the lifting arms.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 27, 2001
    Applicant: Kabushiki Kaisha Yaskawa Denki
    Inventors: Hirofumi Inokuchi, Toshihide Tomiyama, Yoshihiro Yurita, Shinji Murai, Yusuke Hirano, Shinji Harada, Kengo Tsuruta, Youichi Motomura, Kazutoshi Imai, Yoshiaki Haga, Yoshikatsu Nakamura, Yukio Hashiguchi, Mitsuhiro Matsuzaki, Hiromichi Yamada, Akihiko Mishima, Yoshinaga Maruyama, Kyoji Yano, Moriyuki Nakashima, Osamu Yamashita