Patents by Inventor Kazuhiro Fujisawa

Kazuhiro Fujisawa 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: 12087262
    Abstract: A soundproof member includes: a first elastic porous body layer; a first film layer; a second elastic porous body layer; and a second film layer, the layers arranged in the stated order from a sound source (S) side, wherein the first and second elastic porous body layer each have: a thickness of 0.5 mm or more and 10 mm or less; a bulk density of 45 kg/m3 or more and 550 kg/m3 or less; and a Young's modulus of 7,000 Pa or more and 28,000 Pa or less, and wherein a total (L1/?1+L2/?2) of a ratio (L1/?1) of the thickness L1 (mm) of the first elastic porous body layer to a viscous characteristic length ?1 (?m) thereof and a ratio (L2/?2) of the thickness L2 (mm) of the second elastic porous body layer (20) to a viscous characteristic length ?2 (?m) thereof is 0.11 or more.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: September 10, 2024
    Assignee: NICHIAS CORPORATION
    Inventors: Tatsuro Miki, Kazuhiro Kikuchi, Tetsuya Sasakawa, Ikuma Fujisawa
  • Publication number: 20200046596
    Abstract: A skin suction head (20) for sucking a skin includes: a flat main body (21); a distal end head portion (22) that is provided at a front end of the main body (21) and is brought into contact with the skin; a suction port (23) that is formed at the distal end head portion (22); and a connecting tube (24) that is provided at a rear end of the main body (21), in which the main body (21) is formed in a hollow shape such that air sucked from the suction port (23) flows toward the connecting tube (24), the distal end head portion (23) is elongate to be in contact with the skin over a wide area, and the suction port (23) is formed in a slit shape.
    Type: Application
    Filed: May 2, 2017
    Publication date: February 13, 2020
    Inventor: Kazuhiro Fujisawa
  • Patent number: 9981089
    Abstract: The present invention provides a gasket for prefilled syringes having both airtightness and operability. The present invention relates to a gasket for prefilled syringes, the gasket including a plurality of circular ribs that are to be in sliding contact with the inner wall of a syringe, the gasket being laminated with an inert film, the plurality of circular ribs including a front circular rib having a front corner with a radius of curvature R1 and a rear corner with a radius of curvature R2, a ratio of the radius of curvature R2 to the radius of curvature R1 being more than 1.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 29, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Naoyuki Ishida, Kazuhiro Fujisawa
  • Publication number: 20160220758
    Abstract: The present invention provides a gasket for prefilled syringes having both airtightness and operability. The present invention relates to a gasket for prefilled syringes, the gasket including a plurality of circular ribs that are to be in sliding contact with the inner wall of a syringe, the gasket being laminated with an inert film, the plurality of circular ribs including a front circular rib having a front corner with a radius of curvature R1 and a rear corner with a radius of curvature R2, a ratio of the radius of curvature R2 to the radius of curvature R1 being more than 1.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 4, 2016
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Naoyuki ISHIDA, Kazuhiro FUJISAWA
  • Publication number: 20150367694
    Abstract: A computer-implemented method for estimating a shape of a tire vulcanization-molded by a molding surface of a mold, comprises: a process in which a primary mold model of the mold which is made up of a finite number of elements to have the molding surface before tire vulcanization is defined; a mold deformation process in which a deformation calculation of the primary mold model is performed based on conditions for tire vulcanization to obtain a shape of the molding surface during tire vulcanization, and a secondary mold model having the obtained shape of the molding surface is defined; and a tire shape acquiring process in which, based on the obtained shape of the molding surface of the secondary mold model, the shape of the tire is calculated.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 24, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masaya TSUNODA, Kazuhiro FUJISAWA
  • Publication number: 20100077590
    Abstract: A die push-up apparatus using a vertically movable die pick-up member 22 for die-peeling, the die pick-up member 22 which pushes dies upward being disposed inside a suction holding stage 10 further toward a die feeding direction side than a die push-up member 21 for die-pickup. With the die push-up member 22 lowered, the forward end portion (with respect to the die feeding direction) of a die 1A that is to be picked up is moved to above the die push-up member 22, the die push-up member 22 is next raised so that the forward end portion of the die 1A passing thereon is peeled from the wafer sheet 2; and further with the die push-up member 22 raised, the die 1A is fed to the pickup center 5 and is picked up by a collet 4 and the rising die push-up member 21.
    Type: Application
    Filed: November 30, 2009
    Publication date: April 1, 2010
    Inventors: Kazuhiro Fujisawa, Yutaka Odaka
  • Publication number: 20100078125
    Abstract: A method and a program (recorded on a recording medium) for securing a curved circuit board in a flat fashion on (a film application stage and) a bonding stage of a die bonder provided with suction cavities formed in a substrate suction surface of the bonding stage that suctions the curved circuit board, including the steps of evacuating air from the vacuum suction cavities using a vacuum device, and moving a die collet provided at a tip end of a bonding arm to press the circuit board down and thus sealing at least one of the vacuum suction cavities by the circuit board so as to allow the remaining vacuum suction cavities to be sealed successively by the flattened circuit board, thereby sealing the upper surfaces of all the vacuum suction cavities by the flattened circuit board, so that the circuit board is suction-held and secured on the bonding stage.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Inventors: Noboru Fujino, Kazuhiro Fujisawa, Yoshifumi Katayama, Yutaka Odaka
  • Patent number: 7130782
    Abstract: A gas flow simulation method includes setting an imaginary object model such as a sphere model having at least one concavity, convexity, groove or projection formed thereon by means of a computer. A spatial part on a periphery of the imaginary object model is set. A surface of the imaginary object model and the spatial part is divided into a large number of blocks to form a large number of latticed divisions by lattice points. A gas flows to the imaginary object model from one direction of the spatial part. A motion element of a flow of the gas in the spatial part for each latticed division or for each latticed point is computed, with the gas flowing in the spatial part and passing along the surface of the imaginary object model. The flow of the gas on the periphery of the imaginary object model is simulated.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: October 31, 2006
    Assignee: SRI Sports Limited
    Inventors: Akio Miyori, Masaki Shiraishi, Kazuhiro Fujisawa, Takahiro Sajima
  • Publication number: 20060137828
    Abstract: The object of the present invention is to make it possible to pick up dies securely using a die push-up member without damaging the dies. A die push-up member 22 used for die-peeling which pushes the dies upward is disposed inside the suction holding stage 10 further toward the die feeding direction side than the die push-up member 21 used for die-pickup so that this die push-up member 22 can be move upward and downward. With the die push-up member 22 lowered, the die end portion (with respect to the die feeding direction) of the die 1A that is picked up is moved to above the die push-up member 22. Then, the die push-up member 22 is raised so that the die end portion (with respect to the die feeding direction) of the die 1A is peeled from the wafer sheet 2. Then, when the die push-up member 22 remaining in a raised state, the die 1A is fed to the pickup center 5, and is picked up by the collet 4 and die push-up member 21.
    Type: Application
    Filed: May 20, 2005
    Publication date: June 29, 2006
    Inventors: Kazuhiro Fujisawa, Yutaka Odaka
  • Patent number: 6722840
    Abstract: A wafer ring supplying and returning apparatus including a magazine that accommodates wafer rings, a jig holder that holds the wafer rings, a drier that causes contraction of the wafer sheets on used wafer rings, and a wafer chucking member that chucks and conveys the wafer rings, and the apparatus further including buffer sections having two (upper and lower) wafer supporting grooves that support wafer rings and a wafer pushing member disposed on or below the wafer chucking member so as to push the wafer rings. The wafer chucking member is disposed so as to face one of the wafer supporting grooves of the buffer sections, and the wafer pushing member is disposed so as to face another one of the wafer supporting grooves.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: April 20, 2004
    Assignee: Kabushiki Kaisha Shinkawa
    Inventors: Kazuhiro Fujisawa, Yoshifumi Katayama, Yasushi Sato
  • Publication number: 20030040894
    Abstract: A gas flow simulation method comprising the steps of setting an imaginary object model such as a sphere model having at least one concavity, convexity, groove or projection formed thereon by means of a computer, setting a spatial part on a periphery of the imaginary object model, dividing a surface of the imaginary object model and the spatial part into a large number of blocks to form a large number of latticed divisions by means of lattice points, flowing a gas to the imaginary object model from one direction of the spatial part, computing a motion element of a flow of the gas in the spatial part for each latticed division or for each latticed point, with the gas flowing in the spatial part and passing along the surface of the imaginary object model, and simulating the flow of the gas on the periphery of the imaginary object model.
    Type: Application
    Filed: April 16, 2002
    Publication date: February 27, 2003
    Inventors: Akio Miyori, Masaki Shiraishi, Kazuhiro Fujisawa, Takahiro Sajima
  • Publication number: 20020168256
    Abstract: A wafer ring supplying and returning apparatus including a magazine that accommodates wafer rings, a jig holder that holds the wafer rings, a drier that causes contraction of the wafer sheets on used wafer rings, and a wafer chucking member that chucks and conveys the wafer rings, and the apparatus further including buffer sections having two (upper and lower) wafer supporting grooves that support wafer rings and a wafer pushing member disposed on or below the wafer chucking member so as to push the wafer rings. The wafer chucking member is disposed so as to face one of the wafer supporting grooves of the buffer sections, and the wafer pushing member is disposed so as to face another one of the wafer supporting grooves.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 14, 2002
    Applicant: KABUSHIKI KAISHA SHINKAWA
    Inventors: Kazuhiro Fujisawa, Yoshifumi Katayama, Yasushi Sato
  • Patent number: 5854879
    Abstract: A liquid crystal display apparatus including a liquid crystal panel of a plurality of dots, an X drive circuit for supplying display information of at least one line to the liquid crystal panel and a Y drive circuit for selecting one-dot data for each line of the liquid crystal panel, the X drive circuit and the Y drive circuit enabling energization of the liquid crystal panel. A plurality of memories are provided for receiving a plurality of bits of information data and for storing at least M dot display information data so as to enable display of a respective line of the liquid crystal panel, M being an integer.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: December 29, 1998
    Assignees: Hitachi, Ltd., Hitachi Video Engineering, Inc.
    Inventors: Tatsuhiro Inuzuka, Hiroyuki Mano, Kazuhiro Fujisawa, Satoshi Konuma, Kiyoshige Kinugawa, Satoru Tsunekawa
  • Patent number: 5583530
    Abstract: A liquid crystal display system capable of making a display of 2.sup.i+j (i, j: positive integers) kinds of tones display includes a frame rate control device for selecting one out of frame rate control data of 2.sup.j kinds in accordance with j-bit display data included in (i+j)-bit display data, i and j being positive integers, a multi-level tone pulse generator for generating display pulses of 2.sup.i +1 kinds including at least activation for display, inactivation for display, and intermediate display corresponding to an intermediate level, and a selection drive device for selecting a display pulse of one kind out of display pulses of 2.sup.i +1 kinds in accordance with the frame rate control data supplied from the frame rate control device and i-bit display data and applying the selected display pulse to a liquid crystal panel, the i-bit being different from the j-bit.
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: December 10, 1996
    Assignees: Hitachi, Ltd., Hitachi Video Engineering, Inc.
    Inventors: Hiroyuki Mano, Tatsuhiro Inuzuka, Satoshi Konuma, Kazuhiro Fujisawa, Toshio Futami, Satoru Tsunekawa
  • Patent number: 5539499
    Abstract: Upon detecting a plurality of troubles based on input numerals by various sensors and the like, warnings corresponding to respective troubles simultaneously appear on a part of a liquid crystal display as pictorial characters, and a help key blinks. Processing contents for the warning of the highest priority appears on the liquid crystal display, as well. Each time the help key is turned on, processing contents for a warning on display changes into that for another warning corresponding to each pictorial character according to the order of priority.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: July 23, 1996
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Kazuhiro Fujisawa
  • Patent number: 5465945
    Abstract: The invention discloses a method for determining the inner diameter of the hollow portion of a laminate and is intended to design a laminated rubber support having an appropriate shape.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: November 14, 1995
    Assignee: Sumitomo Rubber Industries, Inc.
    Inventors: Hiroomi Matsushita, Teruo Sasaki, Kazuhiro Fujisawa
  • Patent number: 5373670
    Abstract: A shakeproof bearing or an earthquake-proofing structure (10) comprises a columnar bearing body (13) and a surrounding high damping elastomer (14). The bearing body (13) includes a stack of rigid plates (12) and elastic plates (11) alternating with one another. The high damping elastomer (14) may be shaped into an annular cylinder or, alternatively, may be in the form of a columnar stack of alternating annular rigid plates (18) and annular high-damping-elastomer plates (17).
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: December 20, 1994
    Assignee: Sumitomo Gomu Kogyo Kabushiki Kaisha
    Inventors: Teruo Sasaki, Kazuhiro Fujisawa, Yoshiaki Miyamoto, Mitsuo Miyazaki, Fumiaki Arima, Yuji Mitsusaka
  • Patent number: 5357723
    Abstract: This invention is intended to provide a vibration damping device having a high degree of freedom of design of damping performance. This device includes rolling bodies (4) interposed between an upper structure (1) and a lower structure (2) to horizontally swingably support the upper structure (1) and elastomeric members (5) disposed between the rolling bodies (4) and the upper and lower structures (1, 2). In this device, rolling surfaces for the rolling bodies (4) are formed by elastomeric members (5) and rigid members (6). For example, the elastomeric and rigid members (5, 6) are disposed respectively in association with the opposite end regions and central regions of the rolling bodies (4). The elastomeric members (5) may be made of any desired material provided that it has viscoelasticty and the rigid member 6 may be made of any desired material provided that the rolling friction of the rolling bodies (4) thereon differs from that on the elastomeric members (5).
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: October 25, 1994
    Assignee: Sumitomo Rubber Industries, Ltd
    Inventors: Teruo Sasaki, Kazuhiro Fujisawa, Akemi Kawanabe, Seinosuke Kato
  • Patent number: 5324117
    Abstract: A laminated rubber bearing comprising a columnar-shaped viscoelastic body 5, a plurality of viscoelastic members 4, and an external binding body 1 disposed in the periphery of these components. The external binding body 1 is a laminated body consisting of alternating rigid plates 3 and rubber-like elastic plates 2 with rubber-like elastic plates 2 disposed between external peripheral regions of the rigid plates 3. The viscoelastic members 4 are disposed inside of those rubber-like elastic plates 2 of the external binding body 1 so that the viscoelastic members 4 fill up clearance between the rigid plates 3 inside of respective rubber-like elastic plates 2. A cylindrical cavity 6 open at both ends thereof extends through the viscoelastic members 4 and the rigid plates 3. A viscoelastic body 5, an elastic body, or viscous substance having cubage greater than that of the cylindrical cavity 6 is forcedly inserted in the cylindrical cavity 6.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: June 28, 1994
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Hiroomi Matsushita, Kazuhiro Fujisawa, Teruo Sasaki
  • Patent number: 5261200
    Abstract: The present invention relates to a vibration-proofing device which supports an upper structure, such as a building, computers and other machines or a floor having such machines mounted thereon, on a lower structure, as a foundation, to allow the upper structure to swing, thereby isolating earthquakes, traffic vibrations and vibrations from the equipment installed in another room so as to protect the upper structure from vibrations. The invention is to provide a bearing type of vibration-proofing device which is simple in construction and capable of reliably absorbing not only horizontal but also vertical components of earthquakes, traffic vibrations and other vibrations, whether they are weak or strong, and which properly operates under low load and produces little vibration during operation. The invention provides an arrangement wherein interposed between upper and lower structures are rolling bodies for horizontally supporting the upper structure for swing movement.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: November 16, 1993
    Assignee: Sumitomo Gomu Kogyo Kabushiki Kaisha
    Inventors: Teruo Sasaki, Kazuhiro Fujisawa, Akemi Kawanabe, Yoshiaki Miyamoto, Seinosuke Kato