Patents by Inventor Naoya Takahashi

Naoya Takahashi 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).

  • Patent number: 6173615
    Abstract: To detect changes of a load on a vehicle in two directions simultaneously by itself. A width-direction load sensor (3) and a thickness-direction load sensor (4) are mounted on a sensor portion (2b) of a sensing device (1) interconnecting fixing portions (2c) and (2c) defined respectively by opposite end portions of a plate-like member (2) spaced from each other in a longitudinal direction (X) of the plate-like member (2) having an insulating film coated on a surface thereof, the two load sensors being spaced from each other in the longitudinal direction (X) of the plate-like member (2).
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: January 16, 2001
    Assignee: Yazaki Corporation
    Inventor: Naoya Takahashi
  • Patent number: 6154873
    Abstract: A hierarchical layout designing method for an LSI has the step of determining the layout positions and shapes of hard macro blocks and a soft macro block, the step of forming a wiring which connects the hard macro blocks to each other and a path which passes above the soft macro block, the step of evaluating the influence which a wiring passing above the soft macro block will influence on the internal wiring of the soft macro block, a determination step of determining the extending direction in which the cell rows are to extend in the soft macro block, the step of forming in the soft macro block the cell rows in which cells are to be placed, and the step of calculating a first cost "COST x" in the case where the cell rows are formed extending in an x-axial direction and a second cost "COST y" in the case where the cell rows are formed extending in any-axial direction.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 28, 2000
    Assignee: NEC Corporation
    Inventor: Naoya Takahashi
  • Patent number: 6122979
    Abstract: When there is a difference in characteristic between sensing devices received respectively in receiving portions disposed at the opposite ends of a shackle pin and, therefore, the voltage of a load signal obtained from the sensing device in the receiving portion side is higher than the voltage of a load signal obtained from the sensing device in the receiving portion side because of the above-mentioned difference even if the loads imposed on the receiving portions respectively are equal to each other, configuration is made so that a correction resistor is parallelly connected to a detection winding of the sensing device in the receiving portion side. Accordingly, a part of the induced current flowing between opposite ends of the detection winding also flow in the correction resistor, so that a voltage drop occurs in the correction resistor.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: September 26, 2000
    Assignee: Yazaki Corporation
    Inventors: Masaya Tsuchie, Naoya Takahashi
  • Patent number: 6116096
    Abstract: A structure for attaching a sensing element for measuring load on a vehicle to a slide plate can reduce the number of components and gives good detection sensitivity. Mounting holes are made at an angle of about 20.degree. at both ends of an internal curved surface of the slide plate. Sensing elements each is secured in each the mounting holes. A wiring plate is placed centrally on a concave portion of the internal curved surface of said slide plate and is used to integrate lead wires from the sensing elements and extend them externally. The wiring plate and lead wires are molded.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: September 12, 2000
    Assignee: Yazaki Corporation
    Inventors: Naoya Takahashi, Masaya Tsuchie
  • Patent number: 6012119
    Abstract: A storage system to be connected to a large-scale computer includes a plurality of first logical units connected to a host device, a plurality of second logical units connected to a storage device, a plurality of cache memories, and a common bus wired between these logical units and memories. The plurality of first logical units, the plurality of second logical units, and the plurality of cache memories are all made in the form of modules. The modules are detachably mounted to the common bus disposed on a back plane. The storage device can be made up of a plurality of small-size storage units arranged in an array. Thus, the storage system realizes its scalability. Since the plurality of first logical units, the plurality of second logical units, and the plurality of cache memories are duplexed and the common bus is made in the form of 2 channels, the storage system can perform degrade operation.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: January 4, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Tatuya Ninomiya, Hidefumi Masuzaki, Hiroyuki Kurosawa, Naoya Takahashi, Yasuo Inoue, Hidehiko Iwasaki, Masayuki Hoshino, Soichi Isono
  • Patent number: 5892181
    Abstract: A structure for mounting sensing devices for measuring a vehicle load which allows the sensing device to obtain a detection value according to the actual load without being affected by the loading condition of baggage on the rear body, the inclination condition of the road, the steering condition of a handwheel, and the like. In a structure for mounting sensing devices 7 for measuring a load on an axle member 5 in which a load G of the vehicle is dispersedly imposed on both ends, recessed housing portions 5f and 5g are formed along the axial direction of the axle member 5 in both end portions 5a and 5b of the axle member 5, respectively. The sensing devices 7 are housed, mounted, and fixed in the recessed housing portions 5f and 5g, while the directions of the sensing devices 7 in a circumferential direction and a radial direction of the axle member 5 are made coincident with each other.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: April 6, 1999
    Assignee: Yazaki Corporation
    Inventor: Naoya Takahashi
  • Patent number: 5819054
    Abstract: A storage system to be connected to a large-scale computer includes a plurality of first logical units connected to a host device, a plurality of second logical units connected to a storage device, a plurality of cache memories, and a common bus wired between these logical units and memories. The plurality of first logical units, the plurality of second logical units, and the plurality of cache memories are all made in the form of modules. The modules are detachably mounted to the common bus disposed on a back plane. The storage device can be made up of a plurality of small-size storage units arranged in an array. Thus, the storage system realizes its scalability. Since the plurality of first logical units, the plurality of second logical units, and the plurality of cache memories are duplexed and the common bus is made in the form of 2 channels, the storage system can perform degrade operation.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: October 6, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Tatuya Ninomiya, Hidefumi Masuzaki, Hiroyuki Kurosawa, Naoya Takahashi, Yasuo Inoue, Hidehiko Iwasaki, Masayuki Hoshino, Soichi Isono
  • Patent number: 5789683
    Abstract: (Purpose) A construction for mounting a load-sensing element for use with a vehicle, in which construction no measurement error is resulted even if the slide plate contacts the leaf spring at different contacting points.(Construction) The sensing element 21 is composed of opposed walls forming a substantially U-shape in both front and side views thereof and having a hollow portion therein, and a plate-like member made of a magnetic material, which plate-like member being inserted into the hollow portion and threaded by a coil to be held therein, wherein the mounting location 15f of the slide plate 15 is a groove into which said sensing element 21 is fitted; wherein the construction further includes a lid which fits over the sensing element and a wedge-like key inserted under the sensing element for fixing the sensing element. The output of the sensing elements are added together so as to output a sum of the outputs of the sensing elements.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: August 4, 1998
    Assignees: Yazaki Corporation, Isuzu Motors Limited
    Inventors: Naoya Takahashi, Yutaka Atagi, Yoshitaka Yasuda
  • Patent number: 5684254
    Abstract: A vehicle load measuring device includes a sensing element for detecting a strain to measure the load of a vehicle, in which the sensing element is formed in a pin shape, and a device for supporting a suspension of the vehicle, in which a hole is formed in the supporting device and the sensing element is fitted into the hole, wherein the load of the vehicle is measured based on the strain detected by the sensing element produced in response to the load supported by the supporting device, and a positioning groove being formed on a surface of the device for supporting a suspension, wherein when the device for supporting a suspension connects a suspension with a bracket on the vehicle the device for supporting a suspension is positioned by use of the positioning groove, thereby determining the direction of the load to be applied to the sensing element and preventing the device for supporting a suspension from moving in a predetermined direction with respect to the bracket.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: November 4, 1997
    Assignees: Yazaki Corporation, Isuzu Motors Limited
    Inventors: Yoji Nakazaki, Hideyuki Aoshima, Naoya Takahashi, Yutaka Atagi, Yoshitaka Yasuda
  • Patent number: 5681998
    Abstract: A vehicle load measuring device comprises a slide plate mounted on the upper surface of an axle case, a load of the vehicle applied through a leaf spring onto the slide plate, the slide plate including a setting portion at an inner surface; and a sensing member fitted into and fixed to the setting portion.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: October 28, 1997
    Assignees: Yazaki Corporation, Isuzu Motors Limited
    Inventors: Yoji Nakazaki, Hideyuki Aoshima, Naoya Takahashi, Yutaka Atagi, Yoshitaka Yasuda
  • Patent number: 5606529
    Abstract: A semiconductor storage device transfers data with an information processing device and includes a non-volatile semiconductor memory in which data is electrically re-writable, a volatile semiconductor memory connected to the non-volatile memory and temporarily storing data of the non-volatile semiconductor memory, and a CPU connected to the volatile semiconductor memory and the non-volatile semiconductor memory. The CPU controls the transfer of data among the non-volatile memory, the volatile memory and the CPU. The CPU also transfers data with the information processing device in accordance with a fixed-length form for data. When an access from the CPU to the volatile semiconductor makes a miss hit (i.e., misses), the CPU accesses the non-volatile semiconductor memory. When a failure is generated in the non-volatile semiconductor memory or when a predicted service life of the non-volatile semiconductor memory is elapsed, the non-volatile semiconductor memory can be substituted by an alternate memory.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: February 25, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Hisao Honma, Kazuo Nakagoshi, Naoya Takahashi, Makoto Kogai, Kenichi Takamoto
  • Patent number: 5606706
    Abstract: The write data is entered from the upper unit into a nonvolatile cache provided in a controller inside of each disk unit through a channel adaptor, a cache shared by each disk, and a disk adaptor. The data from the cache is compressed by the data compressing and restoring device and is written in the disk. At a time, the management information for compressed data is written in the cache and the disk as well. In case of breaking the management information of the cache when a failure takes place in the cache memory, the management information is written for each disk. Hence, the breakage does not have an adverse effect on the other disks. If the management information of the cache is broken, the management information given into the disk may be replaced with the broken information.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: February 25, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Ken-ichi Takamoto, Kazuo Nakagoshi, Naoya Takahashi, Makoto Kogai, Minoru Yoshida
  • Patent number: 5603062
    Abstract: An external storage system is connected to a host system. A controller unit interposed between disk drives and the host system has a large capacity buffer memory with a battery providing non-volatile storage, a plurality of host interfaces and a plurality of drive interfaces. All the accesses made to the disk drives from the host system are realized via the buffer memory which allows a high-speed access. Read/write processing performed for the buffer memory by the host system is executed asynchronously with read/write processing performed between the buffer memory and the disk drives. The drive interface and the host interface area released during a period in which operation of the disk drive is waited for and recoupled upon data transfer.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: February 11, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Sato, Kazuo Nakagoshi, Naoya Takahashi, Akira Chuma, Yoshio Yukawa
  • Patent number: 5561815
    Abstract: In an information storage system having at least a storage medium which includes a plurality of storage areas. Each storage area is associated with one logical drive. Using a control device and in conjunction with an I/O control device and a memory, the system can process coexisting code and image information to permit a designated logical drive to access an area of the storage areas that corresponds to the designated logical drive according to correspondence relation information.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: October 1, 1996
    Assignees: Hitachi, Ltd., Hitachi Software Engineering Co., Ltd.
    Inventors: Yutaka Takata, Yoshinori Okami, Naoya Takahashi, Haruka Kashiwazaki
  • Patent number: 5546348
    Abstract: A semiconductor storage device is connected to at least one magnetic storage device. The input and output of data is made between the semiconductor storage device and an information processing device.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: August 13, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hisao Honma, Kazuo Nakagoshi, Naoya Takahashi, Makoto Kogai, Kenichi Takamoto
  • Patent number: 5463771
    Abstract: An electronic file equipment which duplicates stocked image data and which permits the image data to be accessed at high speed. Using a console, an operator instructs a control device to register an optical disk housed in an optical disk library. The control device reads image data stored in the pertinent optical disk through an optical disk library I/O control unit, and stores the read image data in a disk array through a disk array I/O control unit. In addition, information which indicates the corresponding relation between the pertinent optical disk and the image data stored in the disk array is generated and is stored in the disk array along with the image data.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: October 31, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Osamu Sotoyanagi, Yoshinori Okami, Naoya Takahashi
  • Patent number: 5456119
    Abstract: A sensing element in a load measuring device includes two cylindrical holders, each having a hole along the central axis; and a plate-shaped member provided between the two cylindrical holders, the plate-shaped member having protrusions at both ends, a coil being provided on a center portion of the plate-shaped member, wherein the cylindrical holders is welded to the plate-shaped member with the protrusions engaged with the holes in the two cylindrical holders.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: October 10, 1995
    Assignee: Yazaki Corporation
    Inventors: Yoji Nakazaki, Naoya Takahashi
  • Patent number: 5392445
    Abstract: The write data is entered from the upper unit into a nonvolatile cache provided in a controller inside of each disk unit through a channel adaptor, a cache shared by each disk, and a disk adaptor. The data from the cache is compressed by the data compressing and restoring device and is written in the disk. At a time, the management information for compressed data is written in the cache and the disk as well. In case of breaking the management information of the cache when a failure takes place in the cache memory, the management information is written for each disk. Hence, the breakage does not have an adverse effect on the other disks. If the management information of the cache is broken, the management information given into the disk may be replaced with the broken information.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: February 21, 1995
    Assignee: Hitachi Ltd.
    Inventors: Ken-ichi Takamoto, Kazuo Nakagoshi, Naoya Takahashi, Makoto Kogai, Minoru Yoshida
  • Patent number: 5331572
    Abstract: In the chip layout of an LSI, a layout near bonding pads is efficiently optimized. Especially in a chip having a large number of pins, an increase in chip size caused by pad necks can be prevented. Normal functional macro-blocks are arranged in an inner region of the LSI. On the other hand, input/output blocks including corner blocks are arranged at the peripheral portion of the LSI. In addition, pads separated from the input/output blocks are arranged on the LSI including portions near the corner blocks, and the input/output blocks and the pads are connected to each other through wiring lines.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: July 19, 1994
    Assignee: NEC Corporation
    Inventor: Naoya Takahashi
  • Patent number: 5264409
    Abstract: An excellent pressure-sensitive copying material which has an excellent color developing rate, little odor, and neither offset nor bleeding, said copying material comprising an electron-accepting developer and a solution of an electron-donating color former which produces colors upon contacting with said color developer, wherein it is characterized in that the solvent of said solution comprises a mixture of 20 to 80 weight % of sec-butyldiphenylmethane, 5 to 50 weight % of sec-butyldiphenylethane (1,1) and 5 to 50 weight % of sec-butyldiphenylethane (1,2).
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: November 23, 1993
    Assignee: Nippon Petrochemicals Company, Limited
    Inventors: Naoya Takahashi, Satoshi Narui, Yasuo Togami