Patents by Inventor Takashi Ishii

Takashi Ishii 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: 20020093810
    Abstract: There is provided a spread illuminating apparatus to improve a coupling efficiency between a light conductive member and a spot-like light source. A claw (23) of an upper frame (21) is fitted to a recess (20) of an LED (6), and generates a spring force in a direction of a light conductive member (4) (a spring force in a longitudinal direction of the light conductive member (4)) in a fitted condition to press the LED (6) toward the light conductive member (4). Thus, the light conductive member (4) and the LED are excellently and tightly attached to each other, and surely positioned, and the coupling efficiency of the light conductive member (4) with the LED is excellent.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 18, 2002
    Applicant: Minebea Co., Ltd.
    Inventors: Koichi Toyoda, Takashi Ishii
  • Publication number: 20020080600
    Abstract: There is provided a spread illuminating apparatus to improve a light coupling efficiency between a light conductive member and a transparent substrate. In the spread illuminating apparatus, an FPC mounting section of a frame is set to be lower than a substrate mounting section by the thickness of an FPC, and an extension provided at an FPC main body is let through an opening formed at a stepped part of the frame so as to be disposed on a reverse side of the frame, whereby an upper surface of the light conductive member is adapted to be flush with an upper surface of the transparent substrate while prevention of the deviation in the thickness direction between the light conductive member and the transparent substrate is not obstructed even when the extension is provided, which results in improving the light coupling efficiency.
    Type: Application
    Filed: December 27, 2001
    Publication date: June 27, 2002
    Applicant: MINEBEA CO., LTD.
    Inventors: Koichi Toyoda, Takashi Ishii
  • Publication number: 20020080599
    Abstract: There is provided a spread illuminating apparatus to improve the coupling efficiency between members constituting a light source. The light source comprises a bar-like light conductive member and spot-like light sources. The spot-like light sources are mounted and soldered on an FPC, the light conductive member is fitted between the spot-like light sources, and ends of the light conductive member face light emitting surfaces of the spot-like light sources. The FPC has a deformed portion shaped U and forming an open area. The deformation of the FPC with a U-shaped portion forming an open area gives a flexibility to the FPC in the longitudinal direction of the light conductive member, and an elastic force is given in the reverse direction thereof when the open area is expanded. This elastic force makes the light emitting surfaces of the spot-like source press on the ends of the light conductive member, and the coupling efficiency therebetween is improved.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 27, 2002
    Applicant: Minebea Co., Ltd.
    Inventors: Koichi Toyoda, Takashi Ishii
  • Patent number: 6403510
    Abstract: An aluminum nitride sintered body with high heat conductivity and high strength as well as a method of inexpensively manufacturing such an aluminum nitride sintered body at a low temperature are provided. The aluminum nitride sintered body is manufactured by adding a compound of at least one type of rare earth element (R) selected from La, Ce, Pr, Sm; and Eu, Y compound, Ca compound, and Al compound to an AlN powder and sintering the resulting mixture at a temperature of 1550° C. to 1750° C. The content of oxygen forming Al2O3 existing in an aluminate with rare earth element (R), Y and Ca and oxygen forming independently existing Al2O3 is calculated as 0.01 to 5.0% by weight, heat conductivity is 166 to 200 W/mK, and bending strength is at least 300 MPa.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: June 11, 2002
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Akira Kuibira, Hirohiko Nakata, Kenjiro Higaki, Kazutaka Sasaki, Takashi Ishii
  • Publication number: 20020041981
    Abstract: A magnetic tape comprising a substrate having on one side thereof a magnetic layer serving as a recording surface and on the other side thereof a resin layer serving as a non-recording surface, wherein said magnetic tape has a region on the side of the non-recording surface along the longitudinal direction of the tape in which a regular pattern for servo tracking having different optical properties from the other major region of the side of the non-recording surface is to be formed, and said magnetic tape has a thickness of 7 &mgr;m or less.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 11, 2002
    Inventors: Akira Ishikawa, Takashi Ishii, Mitsuhiro Katashima, Masato Hoshi, Takahisa Yamashiro, Shinsuke Okuda, Koji Uchida
  • Publication number: 20020029175
    Abstract: Commodities may be purchased through a network by sending a request from a computer or a cellular phone. An identifier corresponding to an identification code of the cellular phone is included in the phone request. By analyzing a connection request, it is determined whether or not the identifier is included. Different session control is executed depending on whether the identifier is included or not.
    Type: Application
    Filed: July 6, 2001
    Publication date: March 7, 2002
    Applicant: International Business Machines Corporation
    Inventors: Kazuhiro Yabuta, Masaaki Ishibashi, Takashi Ishii
  • Publication number: 20020020251
    Abstract: A pedal apparatus for an automobile comprises a plurality of pedals attached to a bracket fixed to a vehicle body via a plurality of parallel link mechanisms, a connection parallel link mechanism that connects a pair of the plurality of parallel link mechanism, and is provided with a pair of connection portions connecting the both parallel link mechanisms with the bracket, and an adjustment mechanism attached to the bracket, that arbitrarily prescribes the forms of each parallel link mechanism and the connection parallel link mechanism.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 21, 2002
    Inventors: Sadao Ito, Hiroshi Watanabe, Takashi Ishii, Soshi Mitsuyama
  • Publication number: 20020007911
    Abstract: A wafer holder for a semiconductor manufacturing apparatus that has a high heat conductivity and includes a conductive layer such as heater circuit pattern which can be formed with a high precision pattern, a method of manufacturing the wafer holder, and a semiconductor manufacturing apparatus having therein the wafer holder are provided. On a surface of a sintered aluminum nitride piece, paste containing metal particles is applied and fired to form a heater circuit pattern as a conductive layer. Between the surface of the sintered aluminum nitride piece having the heater circuit pattern formed thereon and another sintered aluminum nitride piece, a glass layer is provided as a joint layer to be heated for joining the sintered aluminum nitride pieces together.
    Type: Application
    Filed: December 19, 2000
    Publication date: January 24, 2002
    Inventors: Akira Kuibira, Hirohiko Nakata, Kenjiro Higaki, Masuhiro Natsuhara, Takashi Ishii, Yasuyuki Matsui
  • Publication number: 20010035296
    Abstract: At least two coated electric wires W1 and W2 are superposed. Resin chips 53 and 55 are disposed above and below the superposed connection portion S. These resin chips 53 and 55 have been compressed from above and below and ultrasonic vibration has been applied thereto, thereby melting resin coats 3 in the coated electric wires W1 and W2 to pressure weld conductive wires 1, the resin chips 53 and 55 and the resin coats 3 have been melted and jointed to each other, and the resin chips 53 and 55 have been also jointed to each other by melting. A pair of resin sealings 4 are provided between the upper resin chip 53 and the coated electric wires W1 and W2 and between the lower resin chip 55 and the coated electric wires W1 and W2. Each resin sealing 4 has rubber elasticity and is formed such as to annularly surround conductive wires 1, which are exposed from the resin coats 3 and pressure welded.
    Type: Application
    Filed: April 26, 2001
    Publication date: November 1, 2001
    Applicant: Yazaki Corporation
    Inventor: Takashi Ishii
  • Publication number: 20010025770
    Abstract: A conveyor chain comprises first and second links connected together articulately. The first links each comprise a link body, an article loading portion, and a pair of overhanging slats. The second links each comprise a link body and an article loading portion. The first and second links are connected together in an alternate manner at an equal pitch. The overhanging slats of each of the first links extend longitudinally of the conveyor chain along both side edges of the associated second link so as to surround the side edges of the second link. Articles easy to fall down can be conveyed and delivered stably in a crossed delivery conveyor.
    Type: Application
    Filed: March 23, 2001
    Publication date: October 4, 2001
    Inventors: Katsutoshi Shibayama, Yoshihiro Murakami, Takashi Ishii
  • Publication number: 20010022479
    Abstract: To provide a toroidal core type actuator having a stator unit which is increased in winding density, is improved in methods of the terminal handling after winding, the positioning of the stator after winding, and the fixing of the same, and is excellent in working properties. A toroidal core type actuator having a stator and a rotor is provided, the stator having winding applied to a hollow cylindrical core composed of soft magnetic material, the rotor including a permanent magnet having north poles and south poles alternately arranged in total of m along the circumferential direction thereof, the rotor being rotatably arranged in the core of the stator via a minute air gap, wherein m of phase separators composed of non-magnetic material are arranged on the peripheral surface of the hollow cylindrical core so as to be separated from each other by 360°/m and the winding is applied to winding regions separated from each other by the phase separators.
    Type: Application
    Filed: May 21, 2001
    Publication date: September 20, 2001
    Applicant: Minebea Co. Ltd.
    Inventors: Yuzuru Suzuki, Sakae Fujitani, Takashi Ishii, Naoyuki Harada
  • Patent number: 6250458
    Abstract: A plastic conveyor chain includes a multiplicity of pinned links each having a flat load-carrying portion formed from a synthetic resin compound containing a polyacetal resin and a silicone-containing lubricant. Preferably, the silicone-containing lubricant contains, with respect to the weight of the synthetic resin compound, 0.5 to 2.0% by weight of silicone oil, 0.5 to 2.0% by weight of potassium titanate fiber, and 0.5 to 2.0% by weight of fatty ester obtained from a monobasic fatty acid and a monohydric alcohol. The thus formed flat load-carrying portion has a low friction coefficient such that the conveyor chain can achieve stable conveyance of articles even when the articles have an unstable bottom configuration.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Tsubakimoto Chain Co.
    Inventors: Katsutoshi Shibayama, Yoshihiro Murakami, Takashi Ishii, Daisuke Sanada, Toshio Kubayashi
  • Publication number: 20010001347
    Abstract: In this method, a ground wire 2 is overlaid on a shield wire 1 in cross. Next, overlapping portions of the shield wire 1 and the ground wire 2 are interposed between an upper resin tip 13 and a lower resin tip 14. By executing a first ultrasonic oscillation while inserting a projection 7a of an ultrasonic horn 7 into a through hole 13b of the tip 13, outside rinds 1d, 2b of the wires 1, 2 are removed in the vicinity of the overlapping portions. Next, by arranging a low-melting metal 15 and a resin piece 16 on a contact between the braided wire 1c and the core line 2a and executing a second ultrasonic oscillation, the contact can be brazed with the mutual welding of the tips 13, 14.
    Type: Application
    Filed: January 16, 2001
    Publication date: May 24, 2001
    Applicant: Yazaki Corp.
    Inventors: Satoshi Tanikawa, Takashi Ishii
  • Patent number: 6236135
    Abstract: To provide a toroidal core type actuator having a stator unit which is increased in winding density, is improved in methods of the terminal handling after winding, the positioning of the stator after winding, and the fixing of the same, and is excellent in working properties. A toroidal core type actuator having a stator and a rotor is provided, the stator having winding applied to a hollow cylindrical core composed of soft magnetic material, the rotor including a permanent magnet having north poles and south poles alternately arranged in total of m along the circumferential direction thereof, the rotor being rotatably arranged in the core of the stator via a minute air gap, wherein m of phase separators composed of non-magnetic material are arranged on the peripheral surface of the hollow cylindrical core so as to be separated from each other by 360°/m and the winding is applied to winding regions separated from each other by the phase separators.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: May 22, 2001
    Assignee: Minebea Co., Ltd.
    Inventors: Yuzuru Suzuki, Sakae Fujitani, Takashi Ishii, Naoyuki Harada
  • Patent number: 6226865
    Abstract: In this method, a ground wire 2 is overlaid on a shield wire 1 in cross. Next, overlapping portions of the shield wire 1 and the ground wire 2 are interposed between an upper resin tip 13 and a lower resin tip 14. By executing a first ultrasonic oscillation while inserting a projection 7a of an ultrasonic horn 7 into a through hole 13b of the tip 13, outside rinds 1d, 2b of the wires 1, 2 are removed in the vicinity of the overlapping portions. Next, by arranging a low-melting metal 15 and a resin piece 16 on a contact between the braided wire 1c and the core line 2a and executing a second ultrasonic oscillation, the contact can be brazed with the mutual welding of the tips 13, 14.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: May 8, 2001
    Assignee: Yazaki Corporation
    Inventors: Satoshi Tanikawa, Takashi Ishii
  • Patent number: 6222438
    Abstract: A temperature fuse which is melted with high operating temperature accuracy at a desired predetermined temperature in the range of 140° C. to 160° C. A fuse element is made of an alloy consisting essentially of 52-100 wt. % indium and the balance tin, and with this construction there can be achieved the temperature fuse which is melted with high operating temperature accuracy at a desired predetermined temperature in the range of 140° C. to 160° C.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: April 24, 2001
    Assignee: Yazaki Corporation
    Inventors: Kinya Horibe, Takayoshi Endo, Takashi Ishii
  • Patent number: 6213292
    Abstract: A number of link plates molded of synthetic resin are pivotally connected together by connecting pins to form a molded conveyor particularly suitable for the conveyance of delicate or easy-to-break articles. Each link plate has a plurality of aligned bush holes formed at intervals along a trailing end edge of the link plate, and a plurality of aligned pin holes formed at intervals along a leading end edge of the link plate. Each of the connecting pins is inserted alternately into the pin holes in one link plate and the bush holes in the adjacent link plate to pivotally connect these two link plates. A locking projection formed on the connecting pin to lock the connecting pin in position against detachment is located closer to one end of said connecting pin than to a longitudinal central portion of said connecting pin. The locking projection thus arranged reduces a stroke of hammering required to drive the connecting pin into the pin and bush holes.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: April 10, 2001
    Assignee: Tsubakimoto Chain Co.
    Inventors: Toshio Takahashi, Katsutoshi Shibayama, Yoshihiro Murakami, Takashi Ishii
  • Patent number: 6173487
    Abstract: A fan speed controller of an automotive vehicle air conditioning device is usually placed in an air flow duct to be effectively cooled. Thus, compact construction of the speed controller is needed to obtain a larger air flow in the air flow duct. For this purpose, various compact resistor units for the speed controller have been proposed. However, some of them are poor in durability against shocks. In view of this, a compact resistor unit for a speed controller includes a resistor block that has a flat resistor, a flat insulating plate and a flat radiation plate which are respectively positioned against one another. The compact resistor unit further includes a holder block of molded plastic on which the resistor block is mounted. The compact resistor unit also includes a plurality of metal terminals partially embedded in the holder block, where the terminals are connected to particular portions of the flat resistor.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: January 16, 2001
    Assignees: Calsonic Corporation, Calsonic Products, Inc.
    Inventors: Hiroyuki Murata, Takashi Ishii, Shuko Yamamoto
  • Patent number: 6163244
    Abstract: A method for producing a fuse element having a fusible portion and any other portion which are made of different kinds of metal. The method comprises the steps of boring through-hole in a substrate made of first metal, forming an element plate by fusion-bonding a second metal to the through-hole and integrally stamping a pair of substrate portion made of the first metal and a low-melting-point portion made of the second metal. The second metal is made of a metal whose melting point is lower than that of the first metal. Further, the pair of substrate portion is connected together by the low-melting-point portion so that the fuse element is formed.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: December 19, 2000
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Takashi Ishii
  • Patent number: 6145181
    Abstract: A ball joint, which is composed of a ball pin, a retainer connected with the ball pin and an elastic joint seal having first and second apertures for covering the ball pin and the retainer. The ball joint is assembled very easily by pressing the ball pin against the second aperture of the joint seal which has been previously set on the retainer, at a predetermined relative speed higher than 20 cm/s after applying lubricant on the inner peripheral face of the second aperture of the joint seal.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 14, 2000
    Assignee: Jidosha Denki Kogyo Kabushiki Kaisha
    Inventors: Yukiho Murata, Takashi Ishii