Patents by Inventor Shinya Okumura

Shinya Okumura 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: 8540042
    Abstract: The construction machine including an engine room having an engine, a radiator ii for cooling the engine, and a hydraulic pump which are arranged therein, and a counterweight area which is located adjacent to the engine room and in which batteries are installed, a ventilation passage for cooling the engine room and a ventilation passage for cooling the batteries are formed separately and independently in the substantially same direction, and a flowing direction of cooling air flowing in the ventilation passage for cooling the engine room and a flowing direction of cooling air flowing in the ventilation passage for cooling the batteries are substantially parallel to each other.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: September 24, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Takayuki Atarashi, Shuichi Terakado, Shigehisa Funabashi, Shinya Okumura, Shigekazu Kieda, Yasunori Ota
  • Publication number: 20130108404
    Abstract: An electric work vehicle is provided in which the length of a high-tension cable connecting an electric motor included in a slewing motor with an inverter for controlling the electric motor can be set to be comparatively short. A region on a main frame is divided into three regions consisting of a center region, a first side region, and a second side region, via a first vertical rib and a second vertical rib. A slewing hydraulic motor and a slew assist electric motor, which constitute the slewing motor, are disposed in the center region, and an inverter for controlling the slew assist electric motor is disposed in a position near the second vertical rib in a second tool chamber provided in the second side region.
    Type: Application
    Filed: July 21, 2011
    Publication date: May 2, 2013
    Applicant: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shinya Okumura, Mitsugu Ojima, Yasunori Ota, Toshihiko Ishida, Takenori Hiroki
  • Publication number: 20120285757
    Abstract: [Object] To provide a cooling structure for a construction machine which can efficiently discharge heat generated in batteries and prevent exhaust air of an engine room from being sucked in the batteries. [Solution Means] In a cooling structure for a construction machine, the construction machine including an engine room 5 having an engine 4, a radiator 11 for cooling the engine 4, and a hydraulic pump 7 which are arranged therein, and a counterweight area 6 which is located adjacent to the engine room 5 and in which batteries 27 are installed, a ventilation passage 23 for cooling the engine room 5 and a ventilation passage 34 for cooling the batteries 27 are formed separately and independently in the substantially same direction, and a flowing direction of cooling air flowing in the ventilation passage 23 for cooling the engine room 5 and a flowing direction of cooling air flowing in the ventilation passage 34 for cooling the batteries 27 are substantially parallel to each other.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 15, 2012
    Inventors: Takayuki Atarashi, Shuichi Terakado, Shigehisa Funabashi, Shinya Okumura, Shigekazu Kieda, Yasunori Ota
  • Publication number: 20120240581
    Abstract: A hybrid construction machine drives the upper swing structure using a hydraulic motor and an electric motor together and is capable of regenerating the energy of the upper swing structure in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor for driving the upper swing structure. The opening area characteristics of a meter-out restrictor and a bleed-off restrictor of a swing directional control valve are set to become larger than for construction machines driving the upper swing structure with the hydraulic motor alone. Torque of the electric motor is controlled so that the total sum of the actual torque occurring in the hydraulic and electric motors in deceleration or acceleration of the hydraulic motor equals the torque occurring when the opening area of the meter-out restrictor or the bleed-off restrictor is set at the prescribed opening area.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 27, 2012
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Takatoshi OOKI, Yusuke KAJITA, Hidetoshi SATAKE, Seiji ISHIDA, Shiho IZUMI, Kouji ISHIKAWA, Shinya OKUMURA, Manabu EDAMURA
  • Publication number: 20110104511
    Abstract: By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Applicants: MAZDA MOTOR CORPORATION, ORIGIN ELECTRIC COMPANY, LIMTED
    Inventors: Shinya OKUMURA, Akira HASHIMOTO, Kazuyuki SHIINO, Takeshi FUJII, Akinobu YAMAGATA, Hiroaki HAYASHI, Tomoo SAWAZAKI, Kazuyuki ISHIDA, Masatoshi HAMANO, Hiroji SASAKI
  • Patent number: 7605051
    Abstract: A method for forming an internal electrode pattern having a predetermined shape includes the following: a step of forming a conductive layer by applying a metal paste on a first support, the metal paste containing metal powder and a binder; a step of forming a resin layer on a second support, the resin layer having a pattern negative to the internal electrode pattern; a step of compression bonding the first support and the second support to each other in such a manner that the conductive layer and the resin layer are opposite to each other; and a step of removing the second support from the first support so as to transfer a conductive layer to the second support, the conductive layer having the pattern negative to the internal electrode pattern, thereby forming the internal electrode pattern having the predetermined shape on the first support.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: October 20, 2009
    Assignee: Panasonic Corporation
    Inventors: Fuyuki Abe, Shinya Okumura, Takahiko Tsujimura, Kengo Nakamura, Atsuo Nagai
  • Publication number: 20090223247
    Abstract: There is provided a method of generating nitrogen which includes cryogenically separating compressed air introduced into a high-pressure column 11, storing liquid air 13 in a bottom portion of the high-pressure column 11 and taking nitrogen in gaseous form from an upper portion of the high-pressure column 11, introducing the liquid air 13 stored in the bottom portion of the high-pressure column 11 into a low-pressure column 12, cryogenically separating the liquid air 13 introduced into the low-pressure column 12 and storing oxygen-enriched liquid air 22 in a bottom portion of the low-pressure column 12 and taking nitrogen in gaseous form from an upper portion of the low-pressure column 12 as a product gas. Liquid air 13 taken through an extraction pipe 20 is introduced into a portion of a rectification part 12a of the low-pressure column 12 in which the number of theoretical plates from a column bottom side is set within the range of one to ten.
    Type: Application
    Filed: June 16, 2006
    Publication date: September 10, 2009
    Applicant: AIR WATER INC.
    Inventors: Akira Yoshino, Koji Tanaka, Ryosuke Matsubayashi, Junya Suenaga, Shinya Okumura
  • Publication number: 20080127469
    Abstract: A method for forming an internal electrode pattern having a predetermined shape includes the following: a step of forming a conductive layer (12) by applying a metal paste on a first support (20), the metal paste containing metal powder and a binder; a step of forming a resin layer (13) on a second support (30), the resin layer having a pattern negative to the internal electrode pattern; a step of compression bonding the first support (20) and the second support (30) to each other in such a manner that the conductive layer (12) and the resin layer (13) are opposite to each other; and a step of removing the second support (30) from the first support (20) so as to transfer a conductive layer (121) to the second support (30), the conductive layer having the pattern negative to the internal electrode pattern, thereby forming the internal electrode pattern (14) having the predetermined shape on the first support (20).
    Type: Application
    Filed: March 22, 2006
    Publication date: June 5, 2008
    Inventors: Fuyuki Abe, Shinya Okumura, Takahiko Tsujimura, Kengo Nakamura, Atsuo Nagai
  • Patent number: 7104802
    Abstract: An IC card connector in which in the insertion space for one IC card, the insertion space for the other IC card is secured, and contact parts are disposed near the insertion slot. In the insertion slot for one IC card, the insertion space for the other IC card is disposed, which is narrower in width and one end of the height direction is located in the insertion slot for the one IC card, while at least a part of the insertion space is shared with the insertion space for the one IC card. A plate is disposed to partition the shared part of the insertion space for the one IC card to make the shared part as the insertion space for the other IC card. This plate has a mechanism that, when the one card is inserted while the other card is not, the plate is moved away from the insertion space for the one IC card and makes room therefor.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: September 12, 2006
    Assignee: SMK Corporation
    Inventors: Shinya Okumura, Ryo Sasaki
  • Patent number: 5763853
    Abstract: Detecting light from a detecting light source (122) is irradiated to a workpiece (1) and the reflected light is detected by a photosensor (126). At the same time, light resulting from emission of plume produced upon laser processing is also detected by the photosensor (126). A laser controller (26) binary-codes a detection signal from the photosensor (126) to provide a rectangular wave signal (TP) and, based on the rectangular wave signal (TP), generates a trigger signal (TP.sub.2) for oscillating a processing laser beam. At this time, the trigger signal (TP.sub.2) is fed back to generate a gate signal (GP) and, based on the gate signal (GP), the detection signal resulted from the emission of the plume is omitted in the gate circuit (245) to produce a trigger signal (TP.sub.G). This trigger signal (TP.sub.G) is given with a delay time (T.sub.D) to produce a trigger signal (TP.sub.1). The above trigger signal (TP.sub.2) is generated in synch with the trigger signal (TP.sub.1).
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: June 9, 1998
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshiaki Shimomura, Naoki Miyanagi, Nobuhiko Tada, Yoshinari Nagano, Shinya Okumura, Shigeyuki Sakurai
  • Patent number: 5662822
    Abstract: The array condition of leads (3) is detected by a photoelectric detector (41), the detection signal is subjected to signal processing to determine the timing to oscillate a pulsed laser beam, and a laser beam axis (13C) is relatively moved at a speed (v.sub.0) with a work table (21) while oscillating a pulsed laser beam (13A), thereby cutting a dam bar (5). At this time, the longitudinal size of a spot (13B) of the pulsed laser beam (13A) is adjusted to be twice or more the width of the dam bar (5) by a longitudinal beam transformer (11a), the transverse size of the spot 13B is adjusted to be not less than 1/2 but not more than 4/5 of the length of the dam bar (5) by a transverse beam transformer (11b), and a beam rotator (11c) is appropriately operated to make the longitudinal direction of the spot (13B) substantially aligned with the longitudinal direction of the lead (3) so that the spot (13B) lies across the width (W.sub.1) of the dam bar (5).
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: September 2, 1997
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Nobuhiko Tada, Kojiro Ogata, Naoki Miyanagi, Yoshiaki Shimomura, Shigeyuki Sakurai, Yoshinari Nagano, Shinya Okumura, Yasushi Minomoto
  • Patent number: 5548890
    Abstract: In a method for forming a lead frame (1) from a metallic plate, a metallic plate (11) is first etched to form outer leads (4) and outer portions (3b) of inner leads of the lead frame (1). Inner portions (3a) of the inner leads (3) are then laser-cut under the condition that a joint portion (7) is left so as to interconnect the inner leads (3) at their distal ends. Mechanical surface treatment and chemical surface treatment are then carried out to remove dross (10), spatters (9) and oxide films deposited during the laser cutting. Inner areas of the inner leads (3) connected to respective terminals of a semiconductor chip are then plated with gold to form plated terminal portions (3A). Subsequently, the region of the lead frame other than the outer leads (4) is coated with a protective film for solder plating and the outer leads (4) are plated with solder.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: August 27, 1996
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Nobuhiko Tada, Naoki Miyanagi, Yoshiaki Shimomura, Shigeyuki Sakurai, Shinya Okumura, Yoshinari Nagano
  • Patent number: 5250205
    Abstract: A lubricating oil comprising a copolymer of monomers comprising as essential ingredients a compound represented by formula (1) and one of maleic anhydride, maleic acid, a salt of maleic acid, and an ester of maleic acid ##STR1## where Z represents a residue of a compound having from 2 to 8 hydroxyl groups; AO represents one or more kinds of oxyalkylene groups each having from 2 to 18 carbon atoms, provided that in the case of two or more kinds of oxyalkylene groups, the oxyalkylene groups are linked to one another in either a block or a random arrangement; R represents an alkenyl group having from 2 to 5 carbon atoms; R.sup.1 represents a hydrocarbon or acyl group having from 1 to 24 carbon atoms; and a.gtoreq.0, b.gtoreq.0, c.gtoreq.0, l is a positive integer, and m and n independently are 0 or a positive integer, provided that l+m+n=2 to 8, n/(l+m).ltoreq.1/2, and al+bm+cn=1 to 1,000.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: October 5, 1993
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Shin-ichi Akimoto, Tohru Yasukohchi, Kazuo Furuse, Shinya Okumura