Patents by Inventor Masaaki Yamashita

Masaaki Yamashita 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: 8713931
    Abstract: A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve (230) capable of being switched to a flow joining position (K) at which flows of the hydraulic oil delivered under pressure by the two hydraulic pumps are joined together, PTO ports (260, 261) out of which the hydraulic oil is taken, and a PTO switching valve (240) provided downstream of the mode switching valve (230) and switching flow of the hydraulic oil so that the oil can be delivered under pressure to the PTO ports (260, 261).
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: May 6, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Sakamoto, Riki Fujita, Masaaki Yamashita, Nagahiro Ogata, Yousuke Yamashita
  • Patent number: 8523139
    Abstract: A selector valve operating mechanism is provided with operating pistons which are hydraulic pistons connected through an operation link to a spool of a PTO selector valve, an solenoid valve for hydraulically controlling reciprocation of the operating pistons, and a controller which is a control device for transmitting an operation signal to the solenoid valve. Control of operation of the solenoid valve moves the spool through the operating pistons and the operation link to switch the PTO selector valve.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 3, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Sakamoto, Nagahiro Ogata, Masaaki Yamashita
  • Patent number: 8330998
    Abstract: A scanner device includes a scanner body enclosed by a housing and an external cover covering an outer side of the housing. The external cover is comprised of a plurality of external members. By spacing the adjacent external members apart from each other at the side edge parts of the housing, recesses are formed between the adjacent external members so as to constitute parts of the external design of the scanner body. Preferably, the side edge parts of the housing are exposed between the adjacent external members at the side edge parts of the housing, and information providing devices providing information on the scanner device are provided at the side edge parts of the housing exposed between the adjacent external members.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: December 11, 2012
    Assignee: PFU Limited
    Inventors: Shoji Yoshida, Hideaki Shibata, Yasuhiro Matsuda, Masaaki Yamashita
  • Patent number: 8169669
    Abstract: A scanner device includes a scanner body formed with a document insertion opening and a document ejection opening and is configured so that a document taken in from the document insertion opening is read and then ejected from the document ejection opening. The scanner device further includes an upper surface cover covering the upper surface of the scanner body and a front surface cover covering the front surface of the scanner body. The front cover is connected at a lower end side thereof to the lower front part of the scanner body and connected at an upper end side thereof to pivotably connected to the front end side of the upper surface cover. By opening the front surface cover from the front surface of the scanner body, the upper surface cover and front surface cover form a document ejection tray.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: May 1, 2012
    Assignee: PFU Limited
    Inventors: Shoji Yoshida, Hideaki Shibata, Yasuhiro Matsuda, Masaaki Yamashita
  • Publication number: 20120048409
    Abstract: A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve (230) capable of being switched to a flow joining position (K) at which flows of the hydraulic oil delivered under pressure by the two hydraulic pumps are joined together, PTO ports (260, 261) out of which the hydraulic oil is taken, and a PTO switching valve (240) provided downstream of the mode switching valve (230) and switching flow of the hydraulic oil so that the oil can be delivered under pressure to the PTO ports (260, 261).
    Type: Application
    Filed: August 5, 2009
    Publication date: March 1, 2012
    Applicant: YANMAR CO., LTD.
    Inventors: Kunihiko Sakamoto, Riki Fujita, Masaaki Yamashita, Nagahiro Ogata, Yousuke Yamashita
  • Publication number: 20110175005
    Abstract: The structures of oil paths and switching control of a mechanical selector valve for controlling a hydraulic actuator and the cost of parts of the mechanical selector valve are respectively simplified and reduced to levels not achievable by an electromagnetic selector valve. However, simple and quick switching operation of the mechanical selector valve by the use of a nearby switch which requires small force to actuate is difficult, and this makes the mechanical selector valve less easy to operate than the electromagnetic selector valve. A selector valve operating mechanism (110) is provided with operating pistons (176, 179) which are hydraulic pistons connected through an operation link (161) to a spool (145) of a PTO selector valve (240), an solenoid valve (113) for hydraulically controlling reciprocation of the operating pistons (176, 179), and a controller (123) which is a control device for transmitting an operation signal to the solenoid valve (113).
    Type: Application
    Filed: August 5, 2009
    Publication date: July 21, 2011
    Inventors: Kunihiko Sakamoto, Nagahiro Ogata, Masaaki Yamashita
  • Publication number: 20110168283
    Abstract: A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve (230) capable of being switched to a flow joining position (K) at which flows of the hydraulic oil delivered under pressure by the two hydraulic pumps are joined together, PTO ports (260, 261) out of which the hydraulic oil is taken, and a PTO switching valve (240) provided downstream of the mode switching valve (230) and switching flow of the hydraulic oil so that the oil can be delivered under pressure to the PTO ports (260, 261).
    Type: Application
    Filed: August 5, 2009
    Publication date: July 14, 2011
    Applicant: YANMAR CO., LTD.
    Inventors: Kunihiko Sakamoto, Riki Fujita, Masaaki Yamashita, Nagahiro Ogata, Yousuke Yamashita
  • Patent number: 7954315
    Abstract: A hydraulic circuit structure of a work vehicle capable of solving a problem in a conventional structure wherein, in a machine attitude control in back hoe operation, pressure oil is preferentially fed to light-loaded machines and some work machines are slowly moved or stopped and, accordingly, the attitudes of the machines cannot be rapidly controlled and work performance is affected. To solve this problem, the hydraulic circuit of the work vehicle comprises two valve groups for a loader and a back hoe having circuits to supply the pressure oil from one hydraulic pump to a valve group for back hoe control through a valve group for loader control and the pressure oil from the other hydraulic pump directly to the valve group for back hoe control. The pressure oil is independently supplied from the hydraulic pumps to valve sections for controlling right and left stabilizer cylinders installed in the valve group for back hoe control.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: June 7, 2011
    Assignee: Yanmar Co., Ltd.
    Inventor: Masaaki Yamashita
  • Publication number: 20110000170
    Abstract: A method for generating a medication regimen of a patient is disclosed. The method comprises receiving a plurality of prescriptions for the patient, wherein a prescription of the plurality of prescriptions indicates a medication and a frequency for administering a dose of the medication. The method further comprises mapping a plurality of doses of one or more medications to a prescription calendar based on the frequencies indicated in the plurality of prescriptions and determining a schedule for administering a plurality of doses of different medications corresponding to each prescription of the plurality of prescriptions based on the calendar and constraints regarding administering the plurality of doses.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: Panasonic Corporation
    Inventors: Bernard BURG, Masaaki Yamashita, Shinichi Takarada, Kristen Ingalz, Tomohiro Haga
  • Patent number: 7842400
    Abstract: The present invention provides a surface treated steel sheet including a steel sheet; a plating layer containing at least one metal selected from the group consisting of zinc and aluminum on a surface of the steel sheet; and a film on the plating layer, the film containing at least one metal selected from the group consisting of Al, Mg, and Zn, a tetravalent vanadium compound, and a phosphoric acid group. This surface treated steel sheet exhibits excellent corrosion resistance and excellent surface appearance without containing hazardous substances, such as hexavalent chromium, in the film.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: November 30, 2010
    Assignee: JFE Steel Corporation
    Inventors: Takafumi Yamaji, Reiko Yamaji, legal representative, Akira Matsuzaki, Kazuhisa Okai, Keiji Yoshida, Masaaki Yamashita, Yuichi Fukushima, Toshiyuki Okuma
  • Patent number: 7775151
    Abstract: In a hydraulic lift structure formed by arranging a hydraulic cylinder case internally provided with a hydraulic cylinder for moving up and down a working machine (a rotary power tiller) in an upper portion of a transmission case of a working vehicle, an oil reservoir of a working fluid for the hydraulic cylinder is provided in a boundary portion between the transmission case and the hydraulic cylinder case in such a manner as to be isolated from an inner portion of the transmission case. The hydraulic lift structure which prevents a malfunction of a hydraulic cylinder or the like and improves a supplying and discharging efficiency of a working fluid.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: August 17, 2010
    Assignee: Yanmar Co., Ltd.
    Inventor: Masaaki Yamashita
  • Publication number: 20100060948
    Abstract: A scanner device includes a scanner body enclosed by a housing and an external cover covering an outer side of the housing. The external cover is comprised of a plurality of external members. By spacing the adjacent external members apart from each other at the side edge parts of the housing, recesses are formed between the adjacent external members so as to constitute parts of the external design of the scanner body. Preferably, the side edge parts of the housing are exposed between the adjacent external members at the side edge parts of the housing, and information providing devices providing information on the scanner device are provided at the side edge parts of the housing exposed between the adjacent external members.
    Type: Application
    Filed: August 14, 2009
    Publication date: March 11, 2010
    Applicant: PFU LIMITED
    Inventors: Shoji YOSHIDA, Hideaki Shibata, Yasuhiro Matsuda, Masaaki Yamashita
  • Publication number: 20100053701
    Abstract: A scanner device includes a scanner body formed with a document insertion opening and a document ejection opening and is configured so that an document taken in from the document insertion opening is read and then ejected from the document ejection opening. The scanner device further includes an upper surface cover covering the upper surface of the scanner body and a front surface cover covering the front surface of the scanner body. The front cover is connected at a lower end side thereof to the lower front part of the scanner body and connected at an upper end side thereof to pivotably connected to the front end side of the upper surface cover. By opening the front surface cover from the front surface of the scanner body, the upper surface cover and front surface cover form a document ejection tray.
    Type: Application
    Filed: August 6, 2009
    Publication date: March 4, 2010
    Applicant: PFU LIMITED
    Inventors: Shoji YOSHIDA, Hideaki Shibata, Yasuhiro Matsuda, Masaaki Yamashita
  • Publication number: 20100000899
    Abstract: A personal medication package is provided with an embedded user interface. The medication package includes an array of storage compartments for storing medication as well as visual indicia that is integrated into the medication package. The visual indicia are formed from color changing ink that is deposited onto the medication package. Consequently, the medication package can be manufactured and disposed of in an ecologically friendly manner.
    Type: Application
    Filed: March 31, 2009
    Publication date: January 7, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Bernard Burg, Ira Nydick, Patrick Suel, Kristen Ingalz, Takako Aparicio, Masaaki Yamashita, Shinichi Takarada
  • Publication number: 20090259486
    Abstract: A patient centric medication dispensing device is herein disclosed. The dispensing device is configured to close the loop between a patient, a treating physician and a pharmacy by monitoring the medication intake of the patient and reporting information to the physician and/or the pharmacy or pharmaceutical company. The dispensing device is further configured to calculate adverse drug effects that may result if a patient takes a requested medication, based on medication that has already been dispensed and medication that is scheduled to be taken. The dispensing device is also configured to provide the patient with educational information based on the situation the patient has encountered, such as missing a scheduled dosage or suffering from side-effects.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 15, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Bernard Burg, Kristen Ingalz, Masaaki Yamashita, Shinichi Takarada
  • Publication number: 20090206980
    Abstract: Provided is a thermistor that exhibits small changes in resistance before and after tripping. In a preferred embodiment, the thermistor comprises a pair of electrodes, and a thermistor layer disposed between the pair of electrodes. The thermistor layer is a cured layer of a thermistor composition that comprises a resin, conductive particles, and a cross-linking agent comprising an isocyanurate having allyl groups and glycidyl groups.
    Type: Application
    Filed: February 10, 2009
    Publication date: August 20, 2009
    Applicant: TDK CORPORATION
    Inventor: Masaaki Yamashita
  • Patent number: D673155
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: December 25, 2012
    Assignee: PFU Limited
    Inventors: Minoru Sugitani, Satoshi Kuroda, Masaaki Yamashita, Toshiki Satoji, Alvise Gangarossa
  • Patent number: D673565
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: January 1, 2013
    Assignee: PFU Limited
    Inventors: Minoru Sugitani, Satoshi Kuroda, Masaaki Yamashita, Toshiki Satoji, Alvise Gangarossa
  • Patent number: D673566
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: January 1, 2013
    Assignee: PFU Limited
    Inventors: Minoru Sugitani, Satoshi Kuroda, Masaaki Yamashita
  • Patent number: D700609
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 4, 2014
    Assignee: PFU Limited
    Inventors: Minoru Sugitani, Satoshi Kuroda, Masaaki Yamashita