Patents by Inventor Hisashi Nakamura
Hisashi Nakamura 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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Patent number: 8511926Abstract: A water-based ballpoint pen using a cemented carbide ball comprising tungsten carbide and a metal binder as a writing front end, wherein cobalt and/or nickel are contained in the cemented carbide ball as the metal binder in an amount of 1 to 20% by weight based on the total amount of the ball and which further includes an aqueous ink composition containing a colorant, water, a phosphate ester-based surfactant, and any one or more compounds of a thiadiazole represented by formula (1), 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione or a salt thereof, and an oligomer of 2,5-dimercapto-1,3,4-thiadiazole: wherein X and Y each represents any substituent of CH3, NH2, and SM, and M represents any of hydrogen, an alkali metal, an ammonium, and an alkanolamine.Type: GrantFiled: March 17, 2009Date of Patent: August 20, 2013Assignee: The Pilot Ink Co., Ltd.Inventors: Nobuyuki Kitaoka, Hisashi Nakamura, Itsuka Goshima
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Publication number: 20120295365Abstract: A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.Type: ApplicationFiled: May 18, 2010Publication date: November 22, 2012Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato
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Patent number: 8186836Abstract: A mobile projector apparatus includes a light source, a modulation unit modulating light of the light source using a picture signal, a projection lens magnifying and projecting the modulated light of the light source, a battery supplying electric power to the light source, an acceleration measuring unit measuring an acceleration applied to the mobile projector apparatus, a usage state detecting unit detecting whether or not the mobile projector apparatus is in an unused state, and an extinguishing unit extinguishing the light source based on outputs of the acceleration measuring unit and the usage state detecting unit.Type: GrantFiled: March 26, 2009Date of Patent: May 29, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Hisashi Nakamura
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Patent number: 8077188Abstract: A gamma correction device for a liquid crystal display device including LCD panels. The gamma correction device includes a storage device for storing gamma correction data corresponding to chiral directions of LCD panels. A chiral direction data acquisition circuit acquires chirality data on the chiral direction of a LCD panel arranged in the liquid crystal display device. A control circuit sets a gamma correction datum adapted to the chiral directions of the LCD panel arranged in the liquid crystal display device selectively from the stored gamma correction data based on the acquired chirality data. A gamma correction circuit performs a gamma correction process on image signals provided to the LCD panel using the set gamma correction datum.Type: GrantFiled: October 29, 2007Date of Patent: December 13, 2011Assignee: SANYO Electric Co., Ltd.Inventors: Akio Muraji, Kazunobu Oketani, Satoshi Nakajo, Hiromitsu Okuno, Hisashi Nakamura
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Publication number: 20110297000Abstract: An air filter coupled to an air inlet, which draws in air. The air filter is automatically cleaned to prevent clogging. When the supply of power is cut off during a cleaning operation sequence of the air filter and the electronic device restarts operation thereafter, the interrupted cleaning operation sequence is completed. An automatic cleaning operation may be performed on the air filter when a video projector, which serves as an electronic device, starts to operate. In addition, an automatic cleaning operation may he performed on the air filter when clogging of the air filter is detected.Type: ApplicationFiled: June 1, 2011Publication date: December 8, 2011Applicant: Sanyo Electric Co., Ltd.Inventors: Kazunori KOTANI, Hisashi Nakamura
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Patent number: 7884812Abstract: Disclosed is a liquid crystal projector comprising operation means for operating a liquid crystal projector; means for previously registering a password; means for entering, in a case where the password is registered, a password when the power to the liquid crystal projector is turned on; and means for comparing the entered password with the registered password and making it possible to operate the liquid crystal projector by the operation means only when both the passwords coincide with each other.Type: GrantFiled: August 20, 2003Date of Patent: February 8, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Hisashi Nakamura, Tomohiko Fujii
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Publication number: 20110013967Abstract: To provide a water-based ballpoint pen with a good feel while writing, which hardly causes the proceeding of ball corrosion with time and can maintain an excellent lubrication performance at writing. A water-based ballpoint pen using a cemented carbide ball comprising tungsten carbide and a metal binder as a writing front end, wherein cobalt and/or nickel are contained in the cemented carbide ball as the metal binder in an amount of 1 to 20% by weight based on the total amount of the ball and which further includes an aqueous ink composition containing a colorant, water, a phosphate ester-based surfactant, and any one or more compounds of a thiadiazole represented by formula (1), 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione or a salt thereof, and an oligomer of 2,5-dimercapto-1,3,4-thiadiazole: wherein X and Y each represents any substituent of CH3, NH2, and SM, and M represents any of hydrogen, an alkali metal, an ammonium, and an alkanolamine.Type: ApplicationFiled: March 17, 2009Publication date: January 20, 2011Applicant: THE PILOT INK CO., LTD.Inventors: Nobuyuki Kitaoka, Hisashi Nakamura, Itsuka Goshima
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Publication number: 20100110395Abstract: A lamp unit is provided with a storage part that holds lamp management information in a writable and readable manner. A communication control part on a projector main unit side reads the lamp management information from the lamp unit and stores the same in a storage part of the main unit. The lamp management information is updated depending on the status of use of the lamp unit. The updated lamp management information is written back into the storage part of the lamp unit.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: SANYO ELECTRIC CO., LTD.Inventors: Kazunori KOTANI, Hirofumi KAZUMORI, Shigeyuki HASHIZUME, Hisashi NAKAMURA, Takeshi HIGASHINO
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Publication number: 20090244490Abstract: A mobile projector apparatus includes a light source, a modulation unit modulating light of the light source using a picture signal, a projection lens magnifying and projecting the modulated light of the light source, a battery supplying electric power to the light source, an acceleration measuring unit measuring an acceleration applied to the mobile projector apparatus, a usage state detecting unit detecting whether or not the mobile projector apparatus is in an unused state, and an extinguishing unit extinguishing the light source based on outputs of the acceleration measuring unit and the usage state detecting unit.Type: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicant: SANYO ELECTRIC CO., LTD.Inventor: Hisashi Nakamura
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Patent number: 7564435Abstract: A liquid crystal projector provided with a cooling fan comprises a temperature sensor for detecting the internal temperature of the liquid crystal projector, an air pressure sensor for detecting outside air pressure, and a control device for controlling the number of revolutions of the cooling fan on the basis of the temperature detected by the temperature sensor and the outside air pressure detected by the air pressure sensor.Type: GrantFiled: February 14, 2002Date of Patent: July 21, 2009Assignee: Sanyo Electric Co., Ltd.Inventors: Hisashi Nakamura, Kouji Terami, Toshiyuki Okino
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Publication number: 20090179878Abstract: A display drive circuit includes a line memory which an image data signal is written into and read out from on a pixel-by-pixel basis. The line memory has its total storage capacity corresponding to at least a horizontal period of the image data signal. The display drive circuit also includes a controller that commands the line memory to alternately write and read out the image data signal. The controller controls the line memory so as to commence to read out, with the image data signal split into sets of split image data signals, the split image data signals of each horizontal period from the line memory after having written into the line memory the pixel data signals output as a first signal of the split image data signals in the horizontal period in respect of each set of split image signals.Type: ApplicationFiled: December 12, 2008Publication date: July 16, 2009Applicant: OKI SEMICONDUCTOR CO., LTD.Inventor: Hisashi NAKAMURA
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Patent number: 7538558Abstract: A failure detection apparatus for a semiconductor apparatus includes a clock line to transmit a clock signal, a shield line to shield the clock line, an inverted signal setting unit to supply signals inverted to each other to the clock and shield lines in a failure detection mode, and a failure detection evaluator to detect a failure by comparing static current consumption in each of the failure detection mode and a normal operation mode.Type: GrantFiled: March 23, 2007Date of Patent: May 26, 2009Assignee: NEC Electronics CorporationInventor: Hisashi Nakamura
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Publication number: 20080178055Abstract: A test pattern generation circuit has multiple pseudo random number generation circuits and a clock control circuit. The pseudo random number generation circuits are provided corresponding to the respective signal lines in a bus wiring, and have predetermined first initial values, which take the same value. In response to first clock signals, the pseudo random number generation circuits generate pseudo random numbers including the first initial values as starting values. According to the value of a control signal, the clock control circuit determines the output-start timings of the first clock signals to be respectively provided to the multiple pseudo random number generation circuits.Type: ApplicationFiled: January 23, 2008Publication date: July 24, 2008Applicant: NEC ELECTRONICS CORPORATIONInventor: Hisashi Nakamura
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Patent number: 7374289Abstract: A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is blocked (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a panel cooling fan-use power source to decrease a fan rotation speed, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the panel fan power source decreases power supplied to the panel cooling fan (fan motor).Type: GrantFiled: September 20, 2005Date of Patent: May 20, 2008Assignee: Sanyo Electric Co., Ltd.Inventor: Hisashi Nakamura
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Publication number: 20080100549Abstract: A gamma correction device for a liquid crystal display device including LCD panels. The gamma correction device includes a storage device for storing gamma correction data corresponding to chiral directions of LCD panels. A chiral direction data acquisition circuit acquires chirality data on the chiral direction of a LCD panel arranged in the liquid crystal display device. A control circuit sets a gamma correction datum adapted to the chiral directions of the LCD panel arranged in the liquid crystal display device selectively from the stored gamma correction data based on the acquired chirality data. A gamma correction circuit performs a gamma correction process on image signals provided to the LCD panel using the set gamma correction datum.Type: ApplicationFiled: October 29, 2007Publication date: May 1, 2008Applicant: SANYO ELECTRIC CO., LTD.Inventors: Akio Muraji, Kazunobu Oketani, Satoshi Nakajo, Hiromitsu Okuno, Hisashi Nakamura
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Patent number: 7354159Abstract: A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is cut off (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a lamp power source to decrease power supplied to the lamp, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the lamp power source decreases the power supplied to the lamp.Type: GrantFiled: September 20, 2005Date of Patent: April 8, 2008Assignee: Sanyo Electric Co., Ltd.Inventors: Hisashi Nakamura, Kei Yasukawa
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Patent number: 7348712Abstract: An ultrasonic probe includes ultrasonic piezoelectric elements that are arranged in a first direction at predetermined intervals and transmit and receive ultrasonic waves in a second direction substantially orthogonal to the first direction. The respective ultrasonic piezoelectric elements have plural grooves, which are parallel to the first direction and do not pierce through an end face, on at least one end face of two end faces substantially orthogonal to the second direction of the respective ultrasonic piezoelectric elements. The ultrasonic waves are weighted in a third direction orthogonal to the first direction and the second direction according to shapes and arrangement of the respective plural grooves and transmitted and received. In addition, a conductive member is joined to the end face having the grooves of the respective ultrasonic piezoelectric elements along the third direction.Type: GrantFiled: April 12, 2005Date of Patent: March 25, 2008Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Takashi Ogawa, Takashi Takeuchi, Koichi Shibamoto, Hisashi Nakamura, Hiroyuki Shikata, Taihei Sato
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Publication number: 20070245194Abstract: A failure detection apparatus for a semiconductor apparatus includes a clock line to transmit a clock signal, a shield line to shield the clock line, an inverted signal setting unit to supply signals inverted to each other to the clock and shield lines in a failure detection mode, and a failure detection evaluator to detect a failure by comparing static current consumption in each of the failure detection mode and a normal operation mode.Type: ApplicationFiled: March 23, 2007Publication date: October 18, 2007Applicant: NEC ELECTRONICS CORPORATIONInventor: Hisashi Nakamura
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Publication number: 20060066818Abstract: A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is cut off (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a lamp power source to decrease power supplied to the lamp, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the lamp power source decreases the power supplied to the lamp.Type: ApplicationFiled: September 20, 2005Publication date: March 30, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventors: Hisashi Nakamura, Kei Yasukawa
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Publication number: 20060066815Abstract: A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is blocked (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a panel cooling fan-use power source to decrease a fan rotation speed, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the panel fan power source decreases power supplied to the panel cooling fan (fan motor).Type: ApplicationFiled: September 20, 2005Publication date: March 30, 2006Applicant: SANYO ELECTRIC CO., LTD.Inventor: Hisashi Nakamura