Patents by Inventor Shigeru Yoshida

Shigeru Yoshida 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: 5461533
    Abstract: An overvoltage protection device connected between an AC plug and an electronic device, comprises a first AC pattern having first and second concave circular arc sections and a first peak point, a second AC pattern having third and fourth concave circular arc sections and a second peak point, and a frame ground pattern having a fifth concave circular arc section with the first peak point as a center and a sixth concave circular arc section with the second peak point as a center, both ends of the fifth concave circular arc section being located at centers of the first and second concave circular arc sections, and both ends of the sixth concave circular arc section being located at centers of the third and fourth concave circular arc sections. If an overvoltage is applied to any of the first and second AC patterns, a discharge occurs across any of the AC pattern and the frame ground pattern, allowing the overvoltage to escape to ground.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: October 24, 1995
    Assignees: Kabushiki Kaisha Toshiba, Nichicon Corporation
    Inventors: Shigeru Yoshida, Yukio Tsuchida
  • Patent number: 5453755
    Abstract: A plurality of insulators are disposed in holes, respectively, defined in a metal plate of a waveguide of a circularly-polarized-wave flat antenna. Each insulator has a through-hole and a protrusion. The through-hole extends from the outside of the metal plate to the inside of the waveguide. The protrusion protrudes outward beyond the metal plate. The protrusion has a groove which is open to the outside. Curl antenna elements each have a shaft portion, an arm portion, and a curl portion. The shaft portion is fitted in the through-hole of the insulator and partly protrudes outward from the metal plate. The arm portion extends from the protruded end of the shaft portion. The curl portion is in a substantially helical shape and connected to the top of the arm portion.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: September 26, 1995
    Assignee: Kabushiki Kaisha Yokowo
    Inventors: Hisamatsu Nakano, Motoshige Sekine, Kazuhiro Yokoyama, Yukio Nakagawa, Eiichi Tanaka, Shigeru Yoshida, Masaaki Kasama, Itsuo Nakayama, Takao Kawahara
  • Patent number: 5409608
    Abstract: A filter for an in-tank pump of an automobile fuel tank includes a flat bag-shaped filter body, a connector body and a suction nozzle. The filter body has a closed front end and a rear end wall and includes a mesh member and a filter frame having a plurality of longitudinal and lateral ribs formed on the upper and lower portions thereof. The connector body includes a cylindrical attachment for attaching the filter body to a suction port of an in-tank pump and an end plate joined to an outer surface of the rear end wall of the filter body. The suction nozzle is attached to the end plate of the connector body so that it communicates with the cylindrical attachment and thrusts into the filter body. The suction nozzle is made of a deformable material and formed into a mesh cylinder having a closed forward end disposed within the filter body at a position of the closed front end of the filter body.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: April 25, 1995
    Assignees: Aisan Industry Co., Ltd., Nifco Inc.
    Inventors: Shigeru Yoshida, Shinichi Fujii, Hideya Miura
  • Patent number: 5372167
    Abstract: A cylindrical housing 6 is secured to the bottom surface of an elevatable filling liquid tank 2, and a liquid injection pipe 16 is mounted on the bottom of the housing 6. An exhaust pipe 18 axially passes through the housing 6 and the liquid injection pipe 16, and is disposed for elevating movement. The exhaust pipe 18 is driven by an elevating mechanism 21. A holder 54 carrying a bottle mouth stuffing 52 is fitted in the housing 6, and is urged down by a spring 61. The bottle mouth stuffing 52 tightly engages the mouth of a vessel which is being raised as carried on a vessel receptacle, and accordingly its position is determined by the height of the vessel. The position of the liquid injection pipe 16 and the exhaust pipe 18 is modified in accordance with the elevation of the tank 2, independently from the bottle mouth stuffing 52. Accordingly, a void which remains in the top of the vessel after the vessel is filled with the liquid is adjusted only in accordance with the elevation of the tank 2.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: December 13, 1994
    Assignee: Shibuya Kogyo Co., Ltd.
    Inventors: Hideaki Hirose, Shigeru Yoshida
  • Patent number: 5348424
    Abstract: A novel method to construct a reinforcing block in an embankment is provided, wherein a core rod to which a protrusion is molded on the tip, is preset inside a hollow rotating shaft with drilling and agitating blades affixed around its circumference, but with the protrusion on the core rod exposed at the front of the shaft. This drilling and agitating shaft rotates and bores into the earth while simultaneously mixing the soil so agitated with a fixing agent; then at a specified depth, the rotating shaft is withdrawn leaving the core rod to remain anchored in the soil while the fixing agent continues to discharge from the end of the hollow rod; and when the hollow rod is completely removed, a reinforcing block is intact within the soil and the tail end of the core rod exposed on the surface of the banking is directly or indirectly affixed to this surface.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: September 20, 1994
    Assignees: Railway Technical Research Institute, Tokyu Construction Co., Ltd., Tenox Corp.
    Inventors: Masaru Tateyama, Yukihiko Tamura, Kosei Fukuda, Shigeru Yoshida, Chikashi Kami
  • Patent number: 5345548
    Abstract: A character display apparatus with an attribute management unit for storing an attribute of a used font, a raster image storage unit for storing a raster image of the used font, and an image position management unit for storing a storage position of each raster image in the raster image storage unit in correspondence with each attribute of the attribute management unit. The character display apparatus also includes a judgment unit for judging whether a raster image of a character to be displayed is stored in the raster image storage unit or not, by referring to the attribute management unit and the image position management unit. The character display apparatus is further provided with a display unit for displaying an image of the character by use of the raster image in the raster image storage unit, in case that the raster image is stored therein.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: September 6, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsuya Nomura, Yumi Yamauchi, Kenji Mameda, Shigeru Yoshida, Noboru Kubo
  • Patent number: 5318639
    Abstract: Method of manufacturing a grain oriented silicon steel sheet. An annealing separating agent mainly composed of MgO is coated on a surface of a decarburized silicon steel sheet. The silicon steel sheet is subjected to secondary recrystallization annealing and then purification annealing. The annealing separating agent contains Ti oxide or a Ti compound which can be oxidized by heating. The purification annealing is conducted in steps. A non-oxidizing atmosphere having a high nitrogen concentration is present in one step. A hydrogen atmosphere having a low nitrogen concentration is present in a subsequent step.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: June 7, 1994
    Assignee: Kawasaki Steel Corporation
    Inventors: Yasuyuki Hayakawa, Ujihiro Nishiike, Bunjiro Fukuda, Masataka Yamada, Tetsuya Oishi, Shigeru Yoshida, Yoh Shimizu
  • Patent number: 5287443
    Abstract: An apparatus for editing documents input from an input device, capable of reducing a process time of renewing the documents to be displayed on a display device and capable of increasing a displaying speed of the renewed documents during an editing process includes a document storing unit for storing document data, a text-layout information storing unit for storing text-layout information separately in accordance with a preceding time and a succeeding time with respect to an editing operation, the text-layout information indicating positions of the document data on the display device at a time when the document data are displaying, a display image storing unit for storing image data, the image data being used for displaying the document data stored in the document storing unit on the display device in accordance with the text-layout information in the preceding time stored in the text-layout information storing unit, an editing unit for producing the text-layout information in the succeeding time from the text
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: February 15, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenji Mameda, Shigeru Yoshida, Shuichiro Ono, Noboru Kubo
  • Patent number: 5254990
    Abstract: In a data compressing and decompressing apparatus, having improved efficiency and enhanced compression ratio whereby character sequence of received data is coded and decoded by referring to a dictionary related to the last character of the immediately preceding character sequence, and a character sequence which is one character extended character sequence of the coded and decompressed character sequence is registered in the dictionary in relation with the last character of the immediately preceding character sequence so that the compression ratio of the coding of data is increased.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: October 19, 1993
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba
  • Patent number: 5248365
    Abstract: The present invention provides a method for passing a flat polyimide film cable as a communication cable (signal line) to a specimen through the inner wall made of FRP material and the outer wall of the cryostat for cooling a specimen such as, for example, a semiconductor operated in cryogenic liquid such as liquefied helium, particularly a method for passing the cable through the inner wall and sealing it thereto. A slit is provided in advance in the inner wall and an FRP layer is formed in advance on both surfaces of the polyimide film cable along distance sufficiently larger than the thickness of the inner wall, then the polyimide film cable provided with the FRP layer is passed through the slit so that part of the FRP layer is positioned inside the slit and the surface of the FRP layer and the internal surface of the slit are bonded and sealed with the adhesive.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Toyo Sanso Co., Ltd.
    Inventors: Yasuharu Kamioka, Shigeru Yoshida, Tomonobu Sano
  • Patent number: 5220620
    Abstract: A color image data processing apparatus processes hue information of picture elements read out sequentially. A chromatic color detection unit is provided for detecting a chromatic color picture element series in a main scanning line having a consecutive succession of chromatic color picture elements including edge picture elements. A replacing unit is provided for replacing the hue value of each picture element of the chromatic color picture element series with a median hue value, the hue value of a picture element located approximately at the center position of the detected chromatic color picture element series. The apparatus may further have an averaged hue value switching unit for switching the hue value of each of the picture elements with an average of the hue value of the picture elements and of other picture elements located in a nearby region.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: June 15, 1993
    Assignee: Fujitsu Limited
    Inventors: Yasuhiko Nakano, Shigeru Yoshida
  • Patent number: 5177622
    Abstract: A halftone image data compression apparatus includes a first part for detecting a continuous state of pattern data of two successive pixels on a line of a halftone image for N adjacent lines of the halftone image. A second part is coupled to the first part for detecting a run length of the continuous state detected in the first part along a direction of the lines, and a third part is coupled to the first and second parts for subjecting to a universal coding a time-sequential data which is in predetermined processing units. Each predetermined processing unit is made up of one run length which is detected by the second part and corresponding pattern data which are received from the first part while the continuous state is detected for the one run length.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: January 5, 1993
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano
  • Patent number: 5166817
    Abstract: A liquid crystal display comprises as liquid crystal panel having a liquid crystal layer disposed between electrode layers, polarizers disposed at both sides of the panel, and a solid birefringent film having the maximum refractive index direction varying with its depth and disposed at at least one side of the liquid crystal panel between the polarizers. The solid birefringent film conpensates the dependence of the polarization characteristic on wave length, thus being capable of obtaining either a monochrome display or a display having an extremely low coloration.
    Type: Grant
    Filed: October 6, 1988
    Date of Patent: November 24, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Isao Ota, Katsuhiko Kumagawa, Shingo Fujita, Hiroshi Yamazoe, Shigeru Yoshida, Toshio Tatsumichi
  • Patent number: 5150119
    Abstract: In a data compression method based on an LZW coding procedure, a list which defines a sequence of tracing partial strings registered in a dictionary is modified so that a position of a first registered partial string among the registered partial strings in a tree structure of registered partial strings is interchanged with a position of a second registered partial string among the registered partial strings in a state where the first and second registered partial strings extend from an identical node of the tree structure.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: September 22, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yoshiyuki Okada, Yasuhiko Nakano, Hirotaka Chiba
  • Patent number: 5138673
    Abstract: A data compression system is provided having a fixed length coding unit provided before a universal coding unit. The fixed length coding unit detects mode classifications and mode conditions of changing picture elements in a mode detecting unit. Then, the mode classifications and mode conditions are converted to fixed length code words in a code transforming unit representative of, e.g., MH, MR or MMR-type codes. Thereafter, the fixed length code words are predictively coded by the universal coding unit to output compressed data. The present invention is applicable to both character data and picture data. Preferably, the picture data is preprocessed by the fixed length coding unit before both of the character data and picture data are predictively coded by the universal coding unit.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: August 11, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba, Masahiro Mori
  • Patent number: 5136289
    Abstract: A dictionary searching system retrieves a character string which is described by input reference number and characters from a plurality of mutually different character strings which are registered in a dictionary in correspondence with reference numbers assigned to the character strings.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: August 4, 1992
    Assignee: Fujitsu Limited
    Inventors: Shigeru Yoshida, Yasuhiko Nakano, Yoshiyuki Okada, Hirotaka Chiba
  • Patent number: 5131822
    Abstract: A motor-driven fuel pump including a cylindrical housing; a pump section fixedly mounted at one end portion of the housing so as to close the one end portion; a motor section mounted in the housing for driving the pump section; and a cover member fixedly mounted at the other end portion of the housing so as to close the other end portion by caulking an end of the housing; wherein an outer end surface of the cover member projects outwardly from the caulked end of the housing to increase a wall thickness of the cover member without increasing a total length of the housing, whereby a sound from the motor section is reduced.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: July 21, 1992
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Shoichi Yamamoto, Shigeru Yoshida, Yoshimasa Ito
  • Patent number: 5120434
    Abstract: A filter adapted to be connected to a suction hole of an intank pump provided in a tank for storing a liquid and adapted to pump the liquid out of the tank. The filter includes a mesh bag and an elastic frame surrounded by the mesh bag for elastically pressing a lower portion of the mesh bag against a bottom inner surface of the tank. The elastic frame is formed with a flat plate adapted to uniformly press the lower portion of the mesh bag against the bottom inner surface of the tank. Accordingly, local wearing of the mesh bag due to the pressure applied thereto by the frame can be prevented.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: June 9, 1992
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Shigeru Yoshida
  • Patent number: 5011367
    Abstract: A fuel pump including an impeller having a plurality of vanes at an outer circumference thereof and a well member surrounding the vanes and formed with a fuel grooves to define a pump chamber, wherein a portion of an edge of the fuel groove intersecting the vanes is chamfered. Accordingly, it is possible to reduce an impeller noise caused by the sudden shearing of the fuel flow in the pump chamber when the vanes of the impeller cross the edge of the fuel groove, thereby greatly improving the silentness in an automobile compartment.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: April 30, 1991
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Shigeru Yoshida, Yoshimasa Ito
  • Patent number: 4922274
    Abstract: A motor-driven type exposure adjusting device, such as a diaphragm-shutter device, adapted for a lens incorporating camera, an interchangeable lens, or the like. In the adjusting device, a rotary member has an optical path hole formed in a central portion thereof and is arranged to control the opening and closing actions of a plurality of light shielding blades. A stepping motor servers as a drive source for the rotation of the roatary member and is disposed outside of the optical path hole, and an aperture position detecting means detects a boundary between a given maximum aperture position defined by the light shielding blades and a stopped-down aperture position of the optical path hole. The aperture position of the optical path hole is detected through the rotating angle position of a rotary wheel to which the rotation output of the rotor shaft of the stepping motor is transmitted.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 1, 1990
    Assignee: Canon Kabushiki Kaisha/Canon Denshi Kabushiki Kaisha
    Inventors: Hiroshi Yamamoto, Shigeru Yoshida, Katumi Yoshida, Ryuji Suzuki, Tadashi Arai, Masachika Nishimura, Hiroaki Seino, Takehiko Ando