Patents by Inventor Kazutaka Suzuki
Kazutaka Suzuki 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).
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Publication number: 20160010890Abstract: A controller of a heat pump water heating system drives circulation pumps, and uses a heat pump unit to increase a temperature of tank water within a hot water storage tank via a plate heat exchanger if the temperature of the tank water detected from a temperature sensor is lower than a heat source switch tank temperature, and the controller stops one of the circulation pump, drives other circulation pumps, and uses a boiler to increase the temperature of the tank water within the hot water storage tank via the plate heat exchanger in a shorter time than that of a case in which the heat pump unit is used to increase the temperature if the temperature of the tank water detected from the temperature sensor is equal to or higher than the heat source switch tank temperature.Type: ApplicationFiled: April 10, 2015Publication date: January 14, 2016Inventors: Kazutaka SUZUKI, Hirokazu MINAMISAKO, Shigeru IIJIMA, Seiji FURUKAWA
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Patent number: 9219061Abstract: A semiconductor device capable of reducing an inter-source electrode resistance RSS(on) and reducing a chip size is provided. A semiconductor device according to the present invention includes a chip partitioned into three areas including a first area, a second area, and a third area, and a common drain electrode provided on a back surface of the chip, in which the second area is formed between the first and third areas, a first MOSFET is formed in the first area and the third area, and a second MOSFET is formed in the second area.Type: GrantFiled: May 21, 2013Date of Patent: December 22, 2015Assignee: Renesas Electronics CorporationInventors: Kazutaka Suzuki, Takahiro Korenari
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Patent number: 9140464Abstract: In a heating medium utilizing apparatus utilizing heating medium heated by a heating device, it is aimed to provide a pipe which achieves both of the strength of a connection part to an external pipe and the ease of pipe layout without increasing a manufacturing time. On a tip portion of an internal pipe through which the heating medium or fluid to be heat-exchanged with the heating medium flows, a pipe expanding process to expand a pipe diameter and a pipe shrinking process to shrink the pipe diameter are carried out, thereby forming the connection part to be connected to the external pipe connected to external equipment by work hardening.Type: GrantFiled: September 26, 2013Date of Patent: September 22, 2015Assignee: Mitsubishi Electric CorporationInventors: Kazutaka Suzuki, Kei Takeyama, Takuya Suenaga
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Publication number: 20150233652Abstract: A heat exchanger includes tubes and a header tank. The tubes are arranged in parallel with each other, and fluid flows in the tubes. The header tank is disposed at end portions of the tubes in a longitudinal direction of the tubes and extends in a direction in which the tubes are arranged in parallel with each other to communicate with the tubes. The header tank includes a core plate, a resin tank main body part, and a resiliently-deformable sealing member. The tubes are joined to the core plate. The tank main body part is fixed to the core plate. The core plate includes a receiving part at which the sealing member is disposed. The tank main body part is fixed to the core plate with the sealing member clamped between an end part of the tank main body part on the core plate-side and the receiving part. The receiving part is disposed on a farther side from the tubes in the longitudinal direction of the tubes than the end portions of the tubes in the longitudinal direction of the tubes.Type: ApplicationFiled: October 2, 2013Publication date: August 20, 2015Inventors: Michiyasu Yamamoto, Takahiro Uno, Kazutaka Suzuki
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Publication number: 20150129958Abstract: According to one embodiment, a semiconductor apparatus divides each of a first area in which a first transistor is formed and a second area in which a second transistor is formed into two or more areas, and alternately arranges the divided areas of the first area and the second area. Further, the semiconductor apparatus according to one embodiment configures the second area to have a total area larger than that of the first area or to have the number of divisions greater than that of the first area. Furthermore, in the semiconductor apparatus according to one embodiment, a gate pad of the first transistor and a gate pad of the second transistor are provided in the second area.Type: ApplicationFiled: October 7, 2014Publication date: May 14, 2015Inventors: Junichi Nita, Kazutaka Suzuki, Takahiro Korenari, Yoshimasa Uchinuma
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Patent number: 8932177Abstract: A planetary gear train is provided with: a carrier; a planetary gear; a planetary pin inserted into an insert hole provided through the planetary gear and coupled to the carrier to rotatably support the planetary gear; a thrust collar attached to a surface opposed to the planetary gear of the carrier so as to surround the planetary pin; and a pin for coupling the thrust collar to the carrier. The thrust collar has a first surface opposed to the carrier and a second surface opposed to the planetary gear, and has a first pin hole provided on the first surface so as not to reach the second surface. The carrier has a second pin hole on a surface opposed to the planetary gear. The thrust collar is attached to the carrier by inserting the pin into the first pin hole of the thrust collar and into the second pin hole of the carrier.Type: GrantFiled: February 28, 2013Date of Patent: January 13, 2015Assignees: Mitsubishi Heavy Industries, Ltd., Ishibashi Manufacturing, Co., Ltd.Inventors: Kazutaka Suzuki, Kazufumi Takayanagi, Hideaki Nishida, Tadasuke Nishioka, Toshiharu Goya
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Patent number: 8893916Abstract: [Solution] A metal cylindrical tank leg 20 forming an opening in a portion opposite to the lower end plate 7b is provided on the lower end plate 7b of the hot water storage tank 7, a plurality of metal L-shaped tank legs 21 one edge 21a of each of which extends outwardly are provided on the outer peripheral surface of the cylindrical tank leg 20 and arrayed in a circumferential direction thereof, a base plate made of a metal is fixed to the second tank legs; and the cylindrical tank leg 20 and the L-shaped tank legs 21 are fixed to a base plate 12b with a base heat insulator 23 having an electrical insulation property and elasticity interposed therebetween. Part of the lower end plate 7b located within the opening of the cylindrical tank leg 20 is covered by an end plate heat insulator 22.Type: GrantFiled: October 4, 2013Date of Patent: November 25, 2014Assignee: Mitsubishi Electric CorporationInventors: Kei Takeyama, Taro Hattori, Kazutaka Suzuki
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Publication number: 20140208791Abstract: In a heating medium utilizing apparatus utilizing heating medium heated by a heating device, it is aimed to provide a pipe which achieves both of the strength of a connection part to an external pipe and the ease of pipe layout without increasing a manufacturing time. On a tip portion of an internal pipe through which the heating medium or fluid to be heat-exchanged with the heating medium flows, a pipe expanding process to expand a pipe diameter and a pipe shrinking process to shrink the pipe diameter are carried out, thereby forming the connection part to be connected to the external pipe connected to external equipment by work hardening.Type: ApplicationFiled: September 26, 2013Publication date: July 31, 2014Applicant: Mitsubishi Electric CorporationInventors: Kazutaka SUZUKI, Kei TAKEYAMA, Takuya SUENAGA
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Publication number: 20140138390Abstract: [Solution] A metal cylindrical tank leg 20 forming an opening in a portion opposite to the lower end plate 7b is provided on the lower end plate 7b of the hot water storage tank 7, a plurality of metal L-shaped tank legs 21 one edge 21a of each of which extends outwardly are provided on the outer peripheral surface of the cylindrical tank leg 20 and arrayed in a circumferential direction thereof, a base plate made of a metal is fixed to the second tank legs; and the cylindrical tank leg 20 and the L-shaped tank legs 21 are fixed to a base plate 12b with a base heat insulator 23 having an electrical insulation property and elasticity interposed therebetween. Part of the lower end plate 7b located within the opening of the cylindrical tank leg 20 is covered by an end plate heat insulator 22.Type: ApplicationFiled: October 4, 2013Publication date: May 22, 2014Applicant: Mitsubishi Electric CorporationInventors: Kei TAKEYAMA, Taro HATTORI, Kazutaka SUZUKI
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Patent number: 8636615Abstract: A planetary gear train is provided with: a planetary gear; a planetary pin for supporting the planetary gear; a carrier for supporting the planetary pin; and a housing for accommodating at least a portion of the carrier, the planetary gear and the planetary pin. The planetary gear is rotatable with respect to the planetary pin by a bearing. An oiling flow path for supplying lubricant oil to the bearing is formed inside the carrier. The carrier receives the lubricant oil into the oiling flow path from an oiling member stationarily fixed to the housing. The inlet for receiving the lubricant oil into the oiling flow path of the carrier from the oiling member is positioned inside the housing.Type: GrantFiled: February 27, 2013Date of Patent: January 28, 2014Assignees: Mitsubishi Heavy Industries, Co., Ltd, Ishibashi Manufacturing Co., Ltd.Inventors: Kazutaka Suzuki, Kazufumi Takayanagi, Takafumi Yoshida, Tadasuke Nishioka, Toshiharu Goya, Motohisa Uesato, Masahiro Kusaka
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Publication number: 20130320454Abstract: A semiconductor device capable of reducing an inter-source electrode resistance RSS(on) and reducing a chip size is provided. A semiconductor device according to the present invention includes a chip partitioned into three areas including a first area, a second area, and a third area, and a common drain electrode provided on a back surface of the chip, in which the second area is formed between the first and third areas, a first MOSFET is formed in the first area and the third area, and a second MOSFET is formed in the second area.Type: ApplicationFiled: May 21, 2013Publication date: December 5, 2013Applicant: Renesas Electronics CorporationInventors: Kazutaka SUZUKI, Takahiro KORENARI
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Publication number: 20120279237Abstract: An auxiliary heater control device can be readily attached to a hot water heating system configured with a simple water circuit without a hot water storage tank, and is capable of preventing freezing of circulating water such that use of an auxiliary heater is minimized. When a sensed temperature tS sensed by a temperature sensor is in a range, a control device increases a rotational speed of a circulation pump. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump and lowers an operating frequency of a compressor. When the sensed temperature tS is in a range, the control device increases the rotational speed of the circulation pump, lowers the operating frequency of the compressor, and activates an auxiliary heater.Type: ApplicationFiled: November 25, 2009Publication date: November 8, 2012Applicant: Mitsubishi Electric CorporationInventors: Takahiro Ushijima, Kazutaka Suzuki, Koji Matsuzawa, Nobuaki Uehara
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Patent number: 8267517Abstract: An eye movement measurement apparatus 1 measures movement of a cornea 101 by imaging a corneal reflection light image L2 generated as a result of irradiating the cornea 101 with infrared light L1. The eye movement measurement apparatus 1 includes: an imaging section 5 having a sensor section 51 including a plurality of pixels arrayed two-dimensionally, for generating imaging data including the corneal reflection light image L2 made incident on the sensor section 51; a bright spot position operation section 6 that calculates a position of the corneal reflection light image L2 in the imaging data; and a tremor signal operation section 7 that generates a third data string indicating a tremor component included in movement of the cornea 101 by calculating a difference between a first data string concerning temporal changes in position of the corneal reflection light image L2 and a second data string obtained by smoothing the first data string.Type: GrantFiled: November 7, 2008Date of Patent: September 18, 2012Assignee: Hamamatsu Photonics K.K.Inventors: Kazutaka Suzuki, Haruyoshi Toyoda, Munenori Takumi, Naohisa Mukozaka
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Publication number: 20120116100Abstract: An object of the present invention is to provide a method and a system by which hydroxycarboxylic acid cyclic dimers are efficiently generated, allowing high yields of high-quality polyhydroxycarboxylic acid to be obtained. The method for synthesizing polyhydroxycarboxylic acid comprises a depolymerization step for depolymerizing hydroxycarboxylic acid oligomers to produce hydroxycarboxylic acid cyclic dimers, wherein, in the depolymerization step, a reaction solution is heated via heat transfer from a heat medium passage under reduced pressure while the reaction solution is being flowing through a horizontally provided reaction solution passage.Type: ApplicationFiled: November 2, 2011Publication date: May 10, 2012Inventors: Masayuki KAMIKAWA, Toshiaki Matsuo, Naruyasu Okamoto, Kenichiro Oka, Takeyuki Kondo, Akira Tomura, Kazutaka Suzuki
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Publication number: 20120051915Abstract: A planetary gear train is provided with a planetary gear and a planetary pin inserted into the planetary gear. The planetary gear includes: a gear member having teeth on the outer face and a through hole; an intermediate housing inserted into the through hole and having an insert hole into which the planetary pin is inserted; and a plurality of sliding bearing members jointed onto the insert hole of the intermediate housing. The plurality of sliding bearing members form a sliding bearing which sustains the planetary pin and the planetary gear to be rotatable with each other.Type: ApplicationFiled: February 10, 2011Publication date: March 1, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazutaka suzuki, Kazufumi TAKAYANAGI, Takafumi YOSHIDA, Hideaki NISHIDA, Motohisa UESATO, Masahiro KUSAKA
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Patent number: 8075949Abstract: A method of production of conductive particles able to suppress growth of the conductive particles at the firing stage, able to effectively prevent spheroidization and electrode disconnection, able to effectively suppress a drop in electrostatic capacity, and able to efficiently produce core particles covered by thin coating layers without abnormal segregation of the coating layer metal particularly even when the internal electrode layers are reduced in thickness. A method of producing conductive particles comprising cores 51 having nickel as their main ingredients and coating layers 52 covering their surroundings. A core powder, a water-soluble metal salt containing a metal or alloy forming the coating layers 52, and a surfactant (or water-soluble polymer compound) are mixed to deposite by reduction a metal or alloy for forming the coating layers 52 on the outer surfaces of the core powder.Type: GrantFiled: September 28, 2005Date of Patent: December 13, 2011Assignee: TDK CorporationInventors: Kazutaka Suzuki, Shigeki Sato
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Publication number: 20110286846Abstract: A sun-and-planet speed-up gear includes a low-speed-stage sun-and-planet gearing and a high-speed-stage sun-and-planet gearing, in which an input shaft is connected to a low-speed-stage ring gear, the position of a shaft of a low-speed-stage planet gear is secured, a shaft of a low-speed-stage sun gear is connected to a high-speed-stage carrier, and an output shaft is connected to a high-speed-stage sun gear. In order to automatically center the low-speed-stage sun gear to prevent damage to gears and a bearing, a flange formed at a tip of the shaft of the low-speed-stage sun gear and a flange formed at a tip of a coupling that is directly attached to the high-speed-stage carrier or that is formed on the high-speed-stage carrier are coupled via a sleeve.Type: ApplicationFiled: January 29, 2010Publication date: November 24, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Katsuhiko Shoda, Kenji Sakai, Kazutaka Suzuki
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Publication number: 20100309432Abstract: An eye movement measurement apparatus 1 measures movement of a cornea 101 by imaging a corneal reflection light image L2 generated as a result of irradiating the cornea 101 with infrared light L1. The eye movement measurement apparatus 1 includes: an imaging section 5 having a sensor section 51 including a plurality of pixels arrayed two-dimensionally, for generating imaging data including the corneal reflection light image L2 made incident on the sensor section 51; a bright spot position operation section 6 that calculates a position of the corneal reflection light image L2 in the imaging data; and a tremor signal operation section 7 that generates a third data string indicating a tremor component included in movement of the cornea 101 by calculating a difference between a first data string concerning temporal changes in position of the corneal reflection light image L2 and a second data string obtained by smoothing the first data string.Type: ApplicationFiled: November 7, 2008Publication date: December 9, 2010Applicant: Hamamatsu Photonics K.K.Inventors: Kazutaka Suzuki, Haruyoshi Toyoda, Munenori Takumi, Naohisa Mukozaka
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Publication number: 20100292042Abstract: A planetary gear system contains: a sun gear as an input; a fixed ring gear; a planetary career as an output, a first planetary gear supported by the planetary career and engaging the sun gear; and a second planetary gear supported by the planetary career and engaging the ring gear. A first spin axis of the first planetary gear is arranged closer to a planetary career rotation axis of the planetary career than a second spin axis of the second planetary gear. Torque is transmitted from the first planetary gear to the second planetary gear.Type: ApplicationFiled: February 4, 2009Publication date: November 18, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shuichi Nakayama, Kunimitsu Shimoyama, Kazutaka Suzuki, Yasuhiro Ono, Kenji Sakai
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Publication number: 20100285920Abstract: A planetary gear system contains: a sun gear as an input; a fixed ring gear; a planetary career as an output; and a planetary gear unit supported by the planetary career. The planetary gear unit includes: a shaft; a first planetary gear coupled to the shaft and engaging the sun gear; and a second planetary gear coupled to the shaft and engaging the ring gear. The planetary gear unit rotates around a first rotation axis with respect to the planetary career. The planetary career rotates around a second rotation axis. The first rotation axis intersects the second rotation axis.Type: ApplicationFiled: February 4, 2009Publication date: November 11, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shuichi Nakayama, Kunimitsu Shimoyama, Kazutaka Suzuki, Yasuhiro Ono, Kenji Sakai