Patents by Inventor Takayuki Yamamoto
Takayuki Yamamoto 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: 20120038209Abstract: A fluid level detecting apparatus detects the level of fluid in a reservoir. When the fluid level detecting apparatus detects that the fluid level has reached a minimum fluid level, an ECU issues a warning. If, after the warning has been issued, the fluid level detecting apparatus detects that the fluid level has reached a failsafe mode operation fluid level, which is lower than the minimum fluid level, the switches a normal control mode to a failsafe mode, and performs brake control using the failsafe mode.Type: ApplicationFiled: August 8, 2008Publication date: February 16, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takayuki Yamamoto
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Publication number: 20110316326Abstract: A brake system including: (i) hydraulic brakes provided for respective wheels of a vehicle, and configured to be activated by hydraulic pressures of respective brake cylinders so as to restrain rotations of the respective wheels; (ii) a power hydraulic pressure source including a drive source that is activatable by supply of electric energy, and configured to generate hydraulic pressure by activation of the drive source; and (iii) a common passage to which the power hydraulic pressure source and the brake cylinders of the hydraulic brakes are connected. The brake cylinders include a first brake cylinder connected to the common passage via a first individual passage that is provided with a normally-close electromagnetic valve as a first individual control valve. The brake cylinders include a second brake cylinder connected to the common passage via a second individual passage that is provided with a normally-open electromagnetic valve as a second individual control valve.Type: ApplicationFiled: February 2, 2010Publication date: December 29, 2011Applicant: TOYOTA JIDOSHA KAKUSHIKI KAISHAInventors: Tetsuya Miyazaki, Takayuki Yamamoto
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Patent number: 8078812Abstract: Information terminal and information sharing method are provided which consider survival time of contents at a transmission destination and propagate the contents widely so as to be suitable for contents sharing. In the information terminal and information sharing method, contents allotted with survival time is received, the survival time allotted to the contents is changed, contents allotted with the changed survival time is transmitted to a different information terminal, and the contents is deleted after the changed survival time has expired.Type: GrantFiled: October 22, 2008Date of Patent: December 13, 2011Assignee: Hitachi, Ltd.Inventors: Takayuki Yamamoto, Shigeto Oeda
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Publication number: 20110275727Abstract: Disclosed is a resin foam which excels in properties such as strength, flexibility, cushioning properties, and strain recovery, particularly has a cell structure resistant to shrinkage caused by the restoring force of the resin, and has a high expansion ratio. The cross-linked resin foam is obtained by heating a resin composition containing an elastomer, an active-energy-ray-curable compound, and a thermal crosslinking agent to form a cross-linked structure derived from the thermal crosslinking agent in the resin composition; subjecting the cross-linked-structure-containing resin composition to foam molding to give a foamed structure; and irradiating the foamed structure with an active energy ray to form another cross-linked structure derived from the active-energy-ray-curable compound to give the cross-linked resin foam.Type: ApplicationFiled: January 12, 2010Publication date: November 10, 2011Applicant: NITTO DENKO CORPORATIONInventors: Takayuki Yamamoto, Keiko Ochiai, Mitsuhiro Kanada, Hironori Yasuda, Akira Hirao, Masatomi Harada, Shuhei Kanzakitani
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Patent number: 8042887Abstract: A brake control apparatus for controlling brakes of a vehicle having wheels, the apparatus including a stopped-state detecting portion which detects, based on a speed of at least one of the wheels detected by at least one wheel-speed sensor, a stopped state of the vehicle; an operation-force limiting portion which limits, based on a detection of the stopped state of the vehicle by the stopped-state detecting portion, an operation force of at least one of the brakes, such that an upper limit of the operation force is an intermediate level of an operation-force range used when the stopped state is not detected; a sensor ignoring portion which ignores, when an electric voltage supplied from a power source to the at least one wheel-speed sensor is not higher than a reference value, the at least one wheel-speed sensor; a limitation canceling portion which cancels, when the sensor ignoring portion ignores the at least one wheel-speed sensor, a limitation of the operation force by the operation-force limiting portioType: GrantFiled: August 10, 2007Date of Patent: October 25, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takayuki Yamamoto, Masaaki Komazawa, Yasushi Hanaki
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Publication number: 20110249542Abstract: An optical disc reproduction apparatus as electronic apparatus has a display unit mounted via a hinge unit on a main body unit which has a main body case having lower and upper cases for housing a control board and a hinge connecting portion connected to a main body-side joint member of the hinge unit. The hinge connecting portion is formed of a part of the main body case, and has upper and lower connecting members formed of a part of the upper case and a part of the lower case, respectively. The lower connecting member is overlaid on a lower surface of the upper connecting member. The main body-side joint member is attached to the upper connecting member, and connected to both the upper and lower connecting members with hinge mounting screws so as to be connected to the hinge connecting portion.Type: ApplicationFiled: April 6, 2011Publication date: October 13, 2011Inventors: Junji MIYAGI, Takayuki YAMAMOTO, Mari MUROI
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Publication number: 20110241417Abstract: A braking apparatus according to an embodiment includes: a fluid pressure circuit that is provided between a master cylinder and a wheel cylinder, and that includes both a first system flow channel connecting a reservoir and at least one of the plurality of wheel cylinders, and a second system flow channel connecting at least one of the plurality of wheel cylinders and the master cylinder, and that forms a flow channel for supplying operating fluid to each of the wheel cylinders; and a pump provided in the first system flow channel and driven by the motor to increase the fluid pressure of the operating fluid to be supplied from the reservoir to the wheel cylinders.Type: ApplicationFiled: November 20, 2009Publication date: October 6, 2011Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.Inventors: Tetsuya Miyazaki, Takayuki Yamamoto, Koichi Kokubo, Yoshio Masuda
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Publication number: 20110214408Abstract: A liquid propellant tank for storing a liquid propellant A and supplying vapor produced by evaporation of part of the liquid propellant A to an external location comprises a tank body for storing the liquid propellant A, and a plurality of holder plates arranged inside the tank body, around an axis L of the tank body. The holder plates cause the liquid propellant A to adhere to them by surface tension, thereby establishing, inside the tank body, a liquid propellant holding area LA in which the liquid propellant A is held and a gas accumulation area GA in which vapor produced by evaporation of part of the liquid propellant A accumulates. The tank body has a propellant inlet open into the liquid propellant holding area LA and a gas outlet open into the gas accumulation area GA.Type: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicants: JAPAN AEROSPACE EXPLORATION AGENCY, IHI AEROSPACE CO., LTD.Inventors: Takayuki YAMAMOTO, Osamu MORI, Yoshihiro KISHINO, Masayuki TAMURA, Shohei KOGA, Ryoji IMAI
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Publication number: 20110214410Abstract: A propellant tank for storing a liquid propellant A and supplying vapor produced by evaporation of part of the liquid propellant A to an external location comprises a tank body for storing the liquid propellant A, a mesh member arranged inside the tank body to cover a liquid surface of the liquid propellant A to divide an interior of the tank body into a liquid propellant storing area LA and a gas storing area GA by utilizing surface tension of the liquid propellant, and a heater arranged to a gas storing area GA side of the tank body to keep the gas storing area GA at higher temperature than temperature in the liquid propellant storing area LA. The tank body has a propellant inlet open into the liquid propellant storing area LA and a gas outlet open into the gas storing area GA.Type: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicants: JAPAN AEROSPACE EXPLORATION AGENCY, IHI AEROSPACE CO., LTD.Inventors: Takayuki YAMAMOTO, Osamu MORI, Yoshihiro KISHINO, Masayuki TAMURA, Shohei KOGA, Ryoji IMAI
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Publication number: 20110210604Abstract: In a braking control apparatus, a plurality of pumps are driven by a common first motor. A brake supplies operating fluid to pipelines by operating the first motor, and controls opening/closing of a fluid pressure regulating valve so as to make the wheel cylinder pressure in the right front wheel approach the right front wheel target pressure, and controls opening closing of a fluid pressure regulating valve so as to make the wheel cylinder pressure in the left rear wheel approach the left rear wheel target pressure. In the case where the right front wheel target pressure is zero when the fluid pressure regulating valve is to be opened so as to make the wheel cylinder pressure in the left rear wheel approach the left rear wheel target pressure, the brake turns off the first motor.Type: ApplicationFiled: September 25, 2009Publication date: September 1, 2011Inventors: Takayuki Yamamoto, Tetsuya Miyazaki, Hiroyuki Matsubayashi, Hiroaki Niino, Koichi Kokubo
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Publication number: 20110209163Abstract: An optical disc reproduction apparatus as an electronic apparatus comprises a display unit which is mounted on a main body unit via a hinge unit, and electrically connected to the main body by electrical wirings. The main body unit comprises a main body case, a hinge connecting portion and a control board which has connectors provided thereon. The hinge connecting portion and the connectors are placed in a housing portion formed in the main body unit, while the housing portion is open facing outward from the main body case. In a state where the main body unit is already assembled, the main body-side joint member of the hinge unit and the electrical wirings are housed into the housing portion to connect the main body-side joint member to the hinge connecting portion, and to connect the electrical wirings to the connectors. This structure increases assembling efficiency of the electronic apparatus.Type: ApplicationFiled: February 18, 2011Publication date: August 25, 2011Inventors: Junji MIYAGI, Takayuki YAMAMOTO, Mari MUROI
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Publication number: 20110175437Abstract: A brake control apparatus is equipped with a plurality of fluid pressure adjusting valves that have opening degrees thereof adjusted through energization control to adjust the fluid pressures, a plurality of valves that are provided in series with at least two of the fluid pressure adjusting valves are closed during stoppage of energization to hold the fluid pressures, and a brake ECU. The brake ECU controls fluid pressure adjustment achieved by supplying the fluid pressures to the wheel cylinders respectively, opening the communication valves and adjusting the opening degrees of the fluid pressure adjusting valves to adjust the fluid pressures respectively, and fluid pressure holding achieved by closing the communication valves opening the fluid pressure adjusting valves and holding the fluid pressures by means of the communication valves respectively.Type: ApplicationFiled: September 30, 2009Publication date: July 21, 2011Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ADVICS CO., LTD.Inventors: Takayuki Yamamoto, Koji Watanabe, Takashi Satou
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Publication number: 20110164369Abstract: An optical disc reproduction apparatus as an electronic apparatus comprises a display unit mounted on a main body unit via a hinge unit. The main body unit comprises a main body case and a hinge connecting portion provided in a hinge housing portion formed in the main body unit. The hinge housing portion is recessed downward from its periphery in the main body case, and has an opening facing outward from the main body case. A main body-side joint member of the hinge unit is introduced into the hinge housing portion from outside the main body case in a state where upper and lower cases of the main body case are connected to each other (state where the main body unit is already assembled). The main body-side joint member, while housed in the hinge housing portion, is connected to the hinge connecting portion.Type: ApplicationFiled: December 28, 2010Publication date: July 7, 2011Inventors: Junji Miyagi, Hideki Kume, Mari Muroi, Takayuki Yamamoto
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Publication number: 20110164360Abstract: An optical disc reproduction apparatus includes a main body, a display unit, a two-axis hinge, and a battery pack. The two-axis hinge has a joint member to connect the two-axis hinge to the main body. The main body has not only a hinge mounting-housing portion to attach and house the joint member of the two-axis hinge but also a housing recess to house a battery housing of the battery pack on right and left sides of the hinge mounting-housing portion on a back end. The battery pack has a U-shaped recess in a center. The recess is located in a position corresponding to the hinge mounting-housing portion in the main body and has a width larger than that of the hinge mounting-housing portion in a rightward-leftward direction.Type: ApplicationFiled: December 28, 2010Publication date: July 7, 2011Inventors: Junji Miyagi, Hideki Kume, Mari Muroi, Takayuki Yamamoto
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Publication number: 20110148963Abstract: A method for driving a liquid ejector (1) provided with a piezoelectric actuator (7) including a piezoelectric ceramic layer (6) having a size covering a plurality of pressurizing chambers (2). An arbitrary piezoelectric deformation region (8) of the liquid ejector (1) is deflected in one thickness direction and the opposite direction individually by applying a driving voltage waveform including a first voltage (?VL) and an equivalent second voltage (+VL) of the opposite polarity in order to vary the volume of the pressurizing chambers (2) of a corresponding liquid droplet ejecting portion (4), and a liquid droplet is ejected through a communicating nozzle (3). Since gradual creep deformation of the inactive region (16) of the piezoelectric ceramic layer (6) is prevented, the ink droplet ejection performance is maintained at a good level over a long period.Type: ApplicationFiled: February 7, 2011Publication date: June 23, 2011Applicant: KYOCERA CORPORATIONInventors: Shuzo IWASHITA, Sin ISHIKURA, Takayuki YAMAMOTO, Hisamitsu SAKAI
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Patent number: 7896456Abstract: A method for driving a liquid drop ejector (1) equipped with a piezoelectric actuator (7) including a piezoelectric ceramic layer (6) having a size covering a plurality of pressurizing chambers (2). An arbitrary piezoelectric deformation region (8) of the liquid drop ejector (1) is deflected in one thickness direction and the opposite direction, respectively, by applying a driving voltage waveform including a first voltage (?VL) and an equivalent second voltage (+VL) of the opposite polarity in order to vary the volume of the pressurizing chambers (2) of a corresponding liquid drop ejecting portion (4), and a liquid drop is ejected through a communicating nozzle (3). Since gradual creep deformation of the inactive region (16) of the piezoelectric ceramic layer (6) is prevented, the ink drop ejection performance is maintained at a good level over a long term.Type: GrantFiled: June 23, 2006Date of Patent: March 1, 2011Assignee: Kyocera CorporationInventors: Shuzo Iwashita, Sin Ishikura, Takayuki Yamamoto, Hisamitsu Sakai
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Patent number: 7889274Abstract: An image input apparatus can acquire an image with a high contrast without saturating a camera output even for a subject having a large light and dark difference while achieving a wide dynamic range. An image sensor has an input-output characteristic varying with a plurality of regions delimited according to a difference in the amount of incident light. A video luminance signal level is detected from a video signal of the image sensor. An amount of light on a screen is calculated from the image luminance signal level. The image sensor is adjusted to make the amount of light on the screen coincide with a target light amount. The target light amount is set such that a relation between the target light amount R and an amount of light Q at a change point that is at the lowest luminance in an input-output characteristic of the image sensor satisfies R<Q.Type: GrantFiled: July 26, 2005Date of Patent: February 15, 2011Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kenichi Fujie, Yoshiyuki Fujii, Hisashi Ishikura, Tomoko Konda, Takayuki Yamamoto
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Patent number: 7848614Abstract: In the content automatic recording and playback, if the recording and the playback are conducted according to a taste, the user's taste takes precedence and is emphasized. To cope with this situation, a scenario is disposed as a condition to restrict the taste. In the recording and the playback, the scenario acts upon the taste to guide the user to easily view contents matching the scenario. As a result, only by setting the scenario, it is possible to enhance the possibility to guide the user's taste according to a desire (scenario) while recording the contents matching the taste.Type: GrantFiled: July 17, 2006Date of Patent: December 7, 2010Assignee: Hitachi, Ltd.Inventor: Takayuki Yamamoto
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Publication number: 20100301667Abstract: In a brake control system (10), a reservoir switch (60) detects a decrease in the amount of hydraulic fluid in a reservoir tank (26). An ECU (100) switches a master cutoff valve (22), a pressure increase valve (40), and a pressure decrease valve (42) and the like between open and closed. When a decrease in the amount of hydraulic fluid in the reservoir tank (26) is detected, the ECU (100) opens the master cutoff valve (22) to supply hydraulic fluid from a right front-wheel wheel cylinder (20FR) and a left front-wheel wheel cylinder (20FL) to a master cylinder (14), when release of a brake pedal (12) is detected.Type: ApplicationFiled: November 20, 2008Publication date: December 2, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Takayuki Yamamoto, Masaaki Komazawa, Tetsuya Miyazaki
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Patent number: 7775609Abstract: A brake control apparatus for a vehicle includes an actuator and a controller that controls the wheel cylinder pressure to a target hydraulic pressure by driving the actuator in response to a braking request. The controller sets a ceiling value for the rate at which the wheel cylinder pressure is changed in accordance with a temperature, and the wheel cylinder pressure is changed at a rate that is equal to or lower than the ceiling value.Type: GrantFiled: August 4, 2006Date of Patent: August 17, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takayuki Yamamoto