Patents by Inventor Tadashi Yamada
Tadashi Yamada 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: 8265836Abstract: A load weight measuring device for a multi-stage mast forklift truck has a mast assembly, an oil passage, a flow regulator valve, a pressure sensor, a detecting device, a memory, a selector, and a calculator. The mast assembly has a lift bracket for receiving a load weight, a multi-stage mast unit having masts, and a multi-stage lift cylinder unit having lift cylinders each having an oil chamber for raising the lift bracket along the masts. Hydraulic oil flows in the oil passage. The pressure sensor detects a pressure of hydraulic oil and outputs a pressure signal. The detecting device detects a state which stage of the lift cylinder raises the lift bracket and outputs a detection signal. The memory stores predetermined parameters from which the selector selects the parameter based on the detection signal. The calculator calculates the load weight based on the selected parameter and the pressure signal.Type: GrantFiled: May 19, 2009Date of Patent: September 11, 2012Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Tadashi Yamada, Toshinari Fukatsu, Hidenori Oka, Kunio Maki, Shigenori Iwase
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Publication number: 20120105940Abstract: A display device includes a substrate that is provided on a display surface side, an opposing substrate that is arranged opposing the substrate, and a display layer that is provided between the substrate and the opposing substrate. The display layer includes a three-dimensional elastic body that is impregnated by a dispersion liquid in which at least one type of particle that is positively or negatively charged is dispersed in a dispersion medium and a bonding layer that is provided between the three-dimensional mesh-like elastic body and the substrate and which bonds the three-dimensional mesh-like elastic body to the substrate.Type: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Kenji HAYASHI, Tadashi YAMADA
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Publication number: 20120109437Abstract: An industrial vehicle having a vehicle body includes a battery, an electric motor, an electrolyte level sensor, a vehicle operating with lowered electrolyte level, a vehicle operating time calculator, a data-storing device storing data of the vehicle operating time, an electric motor limiting condition and a motor controller. The electric motor is driven to generate torque. The electrolyte level sensor detects whether or not electrolyte level of the battery is lower than a predetermined level. The vehicle operating time is a time elapsing while the electrolyte level is lower than the predetermined level. The vehicle operating time calculator counts the vehicle operating time in accordance with the detection of the electrolyte level. The electric motor limiting condition limits operation of the electric motor gradually in accordance with the vehicle operating time. The motor controller controls operation of the electric motor based on the electric motor limiting condition.Type: ApplicationFiled: October 28, 2011Publication date: May 3, 2012Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shigenori IWASE, Tadashi YAMADA, Hiroshi MURATA, Nobuyoshi UEMATSU, Takashi USHIO
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Patent number: 8126618Abstract: A travel control apparatus for a forklift is disclosed. The forklift is provided with a loading device that performs load handling operations by raising and lowering a load, and a drive motor which generates a drive force for travel and is capable of generating a braking force. The apparatus is provided with a sensor for detecting the speed of the motor, a seat switch, a height switch, a load sensor, and a control section. The control section causes the drive motor to generate a braking force when the seat switch detects that the driver has left the seat in the case where the motor speed sensor detects a traveling state, and also changes the strength of the braking in accordance with the height of the loading device and the weight of the load.Type: GrantFiled: January 25, 2008Date of Patent: February 28, 2012Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Tadashi Yamada, Hidenori Oka, Toshikazu Kamiya, Toshinari Fukatsu, Yoshiharu Ito
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Patent number: 8049604Abstract: A shock-detecting apparatus for an industrial vehicle has a shock-detecting sensor that is fixed to the industrial vehicle for detecting a shock and generating an output signal, a shock value computer for computing a shock value based on the output signal which is received sequentially, a judging device for judging whether or not the shock value is greater than a threshold value, a warning generator for generating a warning signal when the judging device judges that the shock value is greater than the threshold value and a threshold value setting device for setting the threshold value. The threshold value setting device includes a display for displaying a peak value in a predetermined period which allows a user to read the peak value, wherein the peak value is determined by the computed shock value during the predetermined period and a threshold value input unit for inputting the threshold value manually.Type: GrantFiled: May 26, 2009Date of Patent: November 1, 2011Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Tadashi Yamada, Toshinari Fukatsu, Yoshiharu Ito, Hidenori Oka
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Publication number: 20110259234Abstract: The present invention provides a filterless gas generator, including, a housing having closure shell, a diffuser shell including a gas discharge ports, and a flange portion, an inner tube member defining a combustion chamber in an outside thereof for accommodating a gas generating agent, the igniter attached to the closure shell such that the igniter projects inside from a hole formed in the bottom plate of the closure shell, the annular porous member having a plurality of holes which are smaller than the size of the gas generator, defining a space above the combustion chamber, a total opening area (A1) of the gas discharge ports being smaller than a total opening area (A2) of a gas pathway extending from the combustion chamber to the gas discharge ports (A1<A2) , and the space and the gas discharge path being communicated with each other by a communicating portion.Type: ApplicationFiled: January 14, 2010Publication date: October 27, 2011Applicants: DAICEL CHEMICAL INDUSTRIES, LTD., TOYODA GOSEI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoharu Kobayashi, Naoki Matsuda, Osamu Fukawatase, Tomoko Kurata, Yuki Nonoyama, Tadashi Yamada, Toru Ozaki
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Publication number: 20110253000Abstract: The present invention provides a filterless gas generator, including a housing having a closure shell, a diffuser and a flange portion, an inner tube member accommodating an igniter coaxially with the central axis of the housing, an opening end of the inner tube member located in a bottom plate of the closure shell and a ventilating portion formed at the opening end, the inner tube member fixed to an igniter attaching portion, being a cylindrical portion projecting inwardly in the closure shell, and a passage being formed between the inner tube member and the igniter attaching portion to reach the ventilating portion, one end opening of a outer circumference cylindrical member provided in the combustion chamber being located at the bottom plate of the closure shell, the annular porous member disposed and defining a space above the combustion chamber, the space communicating to a gas discharge path between the outer circumference cylindrical member and a side surface of the diffuser shell through a communicatiType: ApplicationFiled: January 14, 2010Publication date: October 20, 2011Applicants: DAICEL CHEMICAL INDUSTRIES, LTD., TOYODA GOSEI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomoharu Kobayashi, Naoki Matsuda, Osamu Fukawatase, Tomoko Kurata, Yuki Nonoyama, Tadashi Yamada, Toru Ozaki
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Publication number: 20110250894Abstract: A wireless communication system, includes: a first base station; a second base station; a first terminal which transmits call connection data to the first base station; a second terminal which receives a call connection request; and a management device which manages location and movement of the first terminal, wherein the first base station employs a handover procedure to notify the management device, when receiving the call connection data from the first terminal, that a call connection destination of the second terminal which has received the call connection request is changed, and notifies the first terminal about a frequency of the second base station, and the first terminal transmits call connection data to the second base station based on the notified frequency.Type: ApplicationFiled: April 11, 2011Publication date: October 13, 2011Applicant: FUJITSU LIMITEDInventors: Takeshi KUNUGI, Noboru HASEGAWA, Reiko HATTORI, Tadashi YAMADA
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Publication number: 20110192245Abstract: A lubricant oil supplying apparatus (1-1) provided for a power transmission apparatus (1) having an accumulating part (9), a rotating member (7) rotating interlockingly with rotation of a drive wheel to feed a lubricant oil in the accumulating part, and an oil receiving part (8) disposed above in the vertical direction than the rotating member, and supplying the lubricant oil to the oil receiving part, in which a passage member (10) for guiding the lubricant oil fed by the rotating member to the oil receiving part is provided.Type: ApplicationFiled: February 4, 2010Publication date: August 11, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Shioiri, Tadashi Yamada, Haruo Isomura
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Patent number: 7990346Abstract: A display method is performed by a display panel having a display area where a plurality of pixels are arranged in a matrix so as to correspond to intersections of a plurality of scanning lines and a plurality of data lines. The display method includes: driving light emitting elements of the pixels on the basis of image data; switching a plurality of different images to display the images on the display area such that portions of the images overlap each other; and putting a black display portion in a portion of the image after the switching which overlaps the image before the switching.Type: GrantFiled: April 28, 2006Date of Patent: August 2, 2011Assignee: Seiko Epson CorporationInventor: Tadashi Yamada
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Publication number: 20110096233Abstract: A control device that controls a video signal to be input to a display device and controls the luminance of a light source that causes light to be incident on the display device includes: a light source luminance control section that controls the luminance of the light source by means of a light source luminance control signal; a storage section that stores relationships between light source luminance control signals and video correction amounts; a video correction signal generating section that generates, on the basis of the video correction amount that is stored in the storage section and corresponds to the generated light source luminance control signal, a video correction signal that is used to correct the video signal; and a video signal correcting section that corrects the video signal by means of the video correction signal.Type: ApplicationFiled: October 14, 2010Publication date: April 28, 2011Applicant: Seiko Epson CorporationInventors: Hirosada HORIGUCHI, Hiroshi YOSHIMOTO, Tadashi YAMADA
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Publication number: 20110050657Abstract: An electro-optical device includes a display panel obtained by forming an electro-optical layer, in which a plurality of pixels is formed, on a glass substrate having a thickness of 50 ?m or less; and a support frame supporting the display panel, wherein the display panel has at least a display region in which the plurality of pixels is formed and frame regions formed outside the display region, and wherein at least one side of each of the frame regions is bent from the vicinity of a circumference of the display region to the support frame side and is fixed to the support frame.Type: ApplicationFiled: August 25, 2010Publication date: March 3, 2011Applicant: SEIKO EPSON CORPORATIONInventor: Tadashi YAMADA
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Publication number: 20110044245Abstract: A base station includes at least one first application section, a determining section, and a controlling section. Each of the first application sections executes one of a plurality of first application programs corresponding to one of a plurality of first application services utilizing a first wireless communication service provided by a mobile virtual network operator. The determining section receives a connection request to connect to the first application service from a first terminal for using the first wireless communication service, and determines the first application section corresponding to the first application service specified in the connection request. The controlling section controls communications between the determined first application section and a server managed by the mobile virtual network operator and between the determined first application section and the first terminal.Type: ApplicationFiled: August 4, 2010Publication date: February 24, 2011Applicant: FUJITSU LIMITEDInventors: Noboru Hasegawa, Takeshi Kunugi, Reiko Hattori, Tadashi Yamada
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Publication number: 20110018580Abstract: A power supply apparatus includes a power supply part including a plurality of power supply units, a first comparison unit comparing a first voltage of the power supply part with a first reference value, a directing unit issuing a voltage fall direction to one of the power supply units so as to lower a voltage setting value when the first voltage is higher than the first reference value, a second comparison unit comparing a second voltage of the power supply unit obtained after the voltage fall direction is issued with the second reference voltage value, and a determining unit determining that the power supply unit to which the voltage fall direction issued corresponds to a failure unit, when the second comparison unit detects that the second voltage obtained after the voltage fall direction is issued fell in the voltage level lower than the second reference voltage.Type: ApplicationFiled: July 16, 2010Publication date: January 27, 2011Applicant: FUJITSU LIMITEDInventors: Masahiro Tamagawa, Tadashi Yamada, Kiyoshi Sudo
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Patent number: 7872618Abstract: A data-line drive circuit controls a current value of a control signal in every cycle T1 based on upper 8-bit digital data DAB of digital data In, and performs pulse-width control in a cycle T2 based on lower 2-bit digital data SUB of the digital data In for the portion which is D/A-converted based on the same digital data of the control signal. It is thus possible to provide an electronic circuit suitable to inhibit a variation in the luminance so as to control the luminance levels of pixels with high precision.Type: GrantFiled: May 3, 2007Date of Patent: January 18, 2011Assignee: Seiko Epson CorporationInventor: Tadashi Yamada
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Patent number: 7773105Abstract: A display method and a display device capable of performing light emission control without the need for an external light sensor are provided. The display device uses the display pixel to detect the external light. A panel drive current that is a sum of drive currents flowing into the red, green and blue pixels is detected. The panel drive current and a set current value that has been previously set are compared with each other. When the panel drive current is equal to or higher than the set current in a standard luminance display mode, the standard luminance display mode is switched to a high luminance display mode. When the panel drive current is lower than the set current value, the high luminance display mode is switched to the standard luminance display mode.Type: GrantFiled: September 29, 2006Date of Patent: August 10, 2010Assignee: Seiko Epson CorporationInventor: Tadashi Yamada
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Patent number: 7735609Abstract: A traveling operation detecting portion detects traveling operation and non-traveling operation selectively. The traveling operation corresponds to operator operation that involves traveling of an industrial vehicle. The non-traveling operation corresponds to operator operation that does not involve the traveling of the industrial vehicle. An upper setting portion selectively sets a first engine speed upper limit and a second engine speed upper limit, which are different from each other, as an upper limit of an acceptable speed range of an engine in correspondence with a detection result of the traveling operation detecting portion. Thus, maximum advantage of the performance of the engine is ensured in correspondence with operation of the industrial vehicle.Type: GrantFiled: May 19, 2006Date of Patent: June 15, 2010Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Yoshiharu Ito, Tadashi Yamada, Hidenori Oka, Toshikazu Kamiya
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Patent number: 7719745Abstract: A display device includes the following elements. A display has a display area and includes an electro-optic layer and a light-reflecting layer reflecting light emitted from the electro-optic layer to the viewing side of the display device, the light-reflecting layer being arranged in the display area. A plate-shaped exterior has a frame area including a portion located outside the periphery of the display. An antireflective plate continuously covers both of the display area and the frame area. The antireflective plate prevents external light, which enters the viewing side of the display device and is reflected by the light-reflecting layer or the frame area, from emerging on the viewing side.Type: GrantFiled: July 7, 2008Date of Patent: May 18, 2010Assignee: Seiko Epson CorporationInventor: Tadashi Yamada
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Patent number: 7705535Abstract: A display panel includes a light-emitting-element substrate in which a plurality of pixels each having a light-emitting element are arranged in a matrix shape, and a sealing substrate that is bonded to the light-emitting-element substrate so as to airtightly seal the entire light-emitting elements of the plurality of pixels. In the sealing substrate, a concave portion that houses the light-emitting elements of the plurality of pixels therein is formed. On an inner surface of the sealing substrate facing the light-emitting elements, a reinforcing member that protrudes to maintain a gap between the sealing substrate and the light-emitting elements is formed.Type: GrantFiled: February 15, 2006Date of Patent: April 27, 2010Assignee: Seiko Epson CorporationInventor: Tadashi Yamada
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Publication number: 20100085896Abstract: When receiving an extension connection request from a first mobile terminal, a first route selection device selects a first extension connection route from among a plurality of extension connection routes and transmits the type of the first extension connection route and calling-side address information used on the first extension connection route to a second route selection device. The second route selection device selects a second extension connection route from among the plurality of extension connection routes and transmits the type of the second extension connection route and called-side address information used on the second extension connection route to the first route selection device. If the second extension connection route coincides with the first extension connection route, an extension connection is established between the first mobile terminal and the second mobile terminal via the first extension connection route.Type: ApplicationFiled: October 1, 2009Publication date: April 8, 2010Applicants: Fujitsu Limited, NTT DOCOMO, Inc.Inventors: Reiko Hattori, Takeshi Kunugi, Tadashi Yamada, Takeshi Masubuchi, Kenichiro Aoyagi, Yasuhiro Kawabe