Patents by Inventor Hirofumi Murakami
Hirofumi Murakami 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: 20240120889Abstract: A high-frequency amplifier apparatus according to an embodiment amplifies high-frequency signals; and includes a balun, amplification circuitry, and matching circuitry. The balun transforms unbalanced signals, which are input, into balanced signals. The amplification circuitry amplifies the balanced signals output from the balun. The matching circuitry is disposed in between the balun and the amplification circuitry, and performs impedance matching. The balun includes an auxiliary winding that is connected to a port of the balun.Type: ApplicationFiled: October 4, 2023Publication date: April 11, 2024Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hirofumi YAMAKI, Mitsuyuki MURAKAMI, Kosuke HAYASHI, Aoi SAKAMITSU
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Publication number: 20240101199Abstract: A work vehicle includes a vehicle body frame, a cab disposed on an upper side of the vehicle body frame, brackets connected to the cab, limiting sections and buffering devices. The limiting sections are disposed between the brackets and the vehicle body frame. The limiting sections limit a movement range of the cab with respect to the vehicle body frame. The buffering devices are disposed between the brackets and the vehicle body frame.Type: ApplicationFiled: July 31, 2023Publication date: March 28, 2024Inventors: Souichirou MURAKAMI, Hirofumi KOTAKI, Daisuke OKAMOTO, Kouji NAGAMI, Yohei TAKAHASHI, Osamu YATSUDA, Hironori YAMAMITSU
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Patent number: 9982390Abstract: There is provided a papermaking felt including: a base fabric layer including at least two layers of a first base fabric layer and a second base fabric layer, each of which is formed by spirally winding a band-shaped body. The first base fabric layer and the second base fabric layer are laminated together such that a direction of spiral winding of the first base fabric layer and a direction of spiral winding of the second base fabric layer are different; A magnitude of a displacement with respect to a cross-machine direction between two intersection points formed by a straight line that passes through intersection points of the side edges of the respective band-shaped bodies of the first base fabric layer and the second base fabric layer and has a minimum angle to the cross-machine direction and both ends of the papermaking felt is 2 cm or more.Type: GrantFiled: July 11, 2016Date of Patent: May 29, 2018Assignee: Ichikawa Co., Ltd.Inventors: Yasuyuki Ogiwara, Hirofumi Murakami
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Publication number: 20170030019Abstract: There is provided a papermaking felt including: a base fabric layer including at least two layers of a first base fabric layer and a second base fabric layer, each of which is formed by spirally winding a band-shaped body. The first base fabric layer and the second base fabric layer are laminated together such that a direction of spiral winding of the first base fabric layer and a direction of spiral winding of the second base fabric layer are different; A magnitude of a displacement with respect to a cross-machine direction between two intersection points formed by a straight line that passes through intersection points of the side edges of the respective band-shaped bodies of the first base fabric layer and the second base fabric layer and has a minimum angle to the cross-machine direction and both ends of the papermaking felt is 2 cm or more.Type: ApplicationFiled: July 11, 2016Publication date: February 2, 2017Applicant: Ichikawa Co., LtdInventors: Yasuyuki OGIWARA, Hirofumi Murakami
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Patent number: 9076397Abstract: An object is to moderate the occurrence of mura in an oblique view in an image display device that conducts area active driving. An emission luminance calculator (151) computes a luminance (first emission luminance) (32) of LEDs in respective areas on the basis of an input image (31). The emission luminance corrector (152) applies a correction to the first emission luminance (32) on the basis of correction data (33) in an LED filter (155).Type: GrantFiled: August 31, 2012Date of Patent: July 7, 2015Assignee: Sharp Kabushiki KaishaInventors: Naoki Shiobara, Hirofumi Murakami
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Publication number: 20150136317Abstract: A double-sided adhesive tape (1) having adhesive layers (3, 4) comprising an adhesive composition, provided on both surfaces of a base material (2). The adhesive composition is a thermoplastic elastomer-based adhesive or an acrylic-based adhesive. The thickness of the adhesive layers (3, 4) is set to at least 70 ?m. The base material (2) is a solid film. The tensile breaking strength of the base material (2) is set to at least 80 MPa.Type: ApplicationFiled: June 28, 2012Publication date: May 21, 2015Applicant: HAYAKAWA RUBBER CO., LTD.Inventors: Kosaku Yamada, Hirofumi Murakami, Kazuya Fujita
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Patent number: 8976204Abstract: Disclosed is a liquid crystal display device (1) provided with a backlight part (3) that has a light-emitting diode (light source), and a liquid crystal panel (display part) (2) that includes a plurality of pixels (P) and displays information using illumination light from the backlight part (3). A video generating device (control part) (9) decides, in a frame in which a gray-scale transition occurs, at least a length of either an OFF period of the light-emitting diode in a first half of the frame or an ON period of the light-emitting diode in a latter half of the frame, based on the time information from the time information generating part (26), and outputs an instruction signal to a light source driving part (14) in accordance with the decided OFF or ON period for driving the light-emitting diode.Type: GrantFiled: January 7, 2011Date of Patent: March 10, 2015Assignee: Sharp Kabushiki KaishaInventors: Hirofumi Murakami, Kohji Fujiwara
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Publication number: 20140225943Abstract: An object is to moderate the occurrence of mura in an oblique view in an image display device that conducts area active driving. An emission luminance calculator (151) computes a luminance (first emission luminance) (32) of LEDs in respective areas on the basis of an input image (31). The emission luminance corrector (152) applies a correction to the first emission luminance (32) on the basis of correction data (33) in an LED filter (155).Type: ApplicationFiled: August 31, 2012Publication date: August 14, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Naoki Shiobara, Hirofumi Murakami
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Patent number: 8780037Abstract: A display method of an embodiment (i) determines a suitable length of an off period of an LED in accordance with a gray scale transition time, i.e., a time during which a transmittance of a liquid crystal is being changed, and (ii) turns off a light source for the determined length of the off period in a first half part of a one frame period. This makes it difficult for a halfway change in a gray scale transition to be reflected in a brightness of a pixel. Also, by performing a gray scale transition emphasis process to a display signal when the gray scale transition is caused, it is possible to increase the brightness of the pixel in the midst of the gray scale transition and to reduce a response time of the pixel. As such, it is possible to further improve a quality of moving image display.Type: GrantFiled: April 20, 2010Date of Patent: July 15, 2014Assignee: Sharp Kabushiki KaishaInventors: Hirofumi Murakami, Kohji Fujiwara
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Patent number: 8738762Abstract: An electronic device may include a server configured to present a log-acquisition environment to a terminal device connected to the electronic device via a network, receive macro-file data and a log-acquisition request that are transmitted from the terminal device by using the log-acquisition environment, and transmit first log information to the terminal-device side according to the log-acquisition request, and a macro-processing unit configured to capture second log information of an operation task by performing processing on the basis of the macro-file data transmitted from the server, and store the second log information, as the first log information transmitted to the terminal-device side by the server.Type: GrantFiled: April 17, 2007Date of Patent: May 27, 2014Assignee: Sony CorporationInventor: Hirofumi Murakami
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Patent number: 8463754Abstract: There is provided electrical equipment which includes a macro file storage portion to store a macro file for acquiring log information under control of an operation system and log information outside control of the operation system at a time and a macro file executing portion to execute the macro file stored in the macro file storage portion and record log information obtained as a result of executing the macro file into a removable external recording medium.Type: GrantFiled: September 30, 2008Date of Patent: June 11, 2013Assignee: Sony CorporationInventor: Hirofumi Murakami
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Publication number: 20120320107Abstract: Disclosed is a liquid crystal display device (1) provided with a backlight part (3) that has a light-emitting diode (light source), and a liquid crystal panel (display part) (2) that includes a plurality of pixels (P) and displays information using illumination light from the backlight part (3). A video generating device (control part) (9) decides, in a frame in which a gray-scale transition occurs, at least a length of either an OFF period of the light-emitting diode in a first half of the frame or an ON period of the light-emitting diode in a latter half of the frame, based on the time information from the time information generating part (26), and outputs an instruction signal to a light source driving part (14) in accordance with the decided OFF or ON period for driving the light-emitting diode.Type: ApplicationFiled: January 7, 2011Publication date: December 20, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hirofumi Murakami, Kohji Fujiwara
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Patent number: 8303775Abstract: A papermaking felt which can be easily engaged in a papermaking machine, wherein the work time for engaging the felt is short, the initial warming-up period until reaching the highest papermaking speed is short, and the felt life is long, which is achieved by integrating and attaching by dispersion in the batt layer of the felt a polymeric elastomer having high deformability when pressure is applied and good recoverability after pressure is applied, which polymeric elastomer is attached in an amount of 0.5 to 20 wt. % of the felt, and which polymeric elastomer has a property that when in the form of a film and when measured at a room temperature of 20° C. and a relative humidity of 65%, the 100% modulus value of the film is 1 to 100 kg/cm2, the residual strain after 100% elongation is 30% or less.Type: GrantFiled: June 25, 2010Date of Patent: November 6, 2012Assignee: Ichikawa Co., Ltd.Inventors: Takao Yazaki, Takashi Ouchi, Hiroyuki Oda, Hirofumi Murakami, Yuya Takamori
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Patent number: 8306398Abstract: A randomly accessible storage medium stores unit data including a data body portion including data units, and a management information portion. New data is additionally recorded in the unit data from a predetermined position within the data body portion so that a beginning portion of the new data is additionally recorded in a leading additional recording area extending from the additional recording start position to an end position within a data unit including the additional recording start position. A subsequent portion of the new data is recorded in a physical storage area on the storage medium. The management information portion is updated according to the additionally recorded new data and recorded in the storage medium. The resulting unit data includes a new data body portion starting from the beginning of the previous data body portion and ending in the end of the new data, and the updated managing information portion.Type: GrantFiled: December 12, 2007Date of Patent: November 6, 2012Assignee: Sony CorporationInventor: Hirofumi Murakami
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Patent number: 8224154Abstract: The present invention relates to a recording control apparatus and a recording control method which can improve the convenience of a storage medium and also to a program and a storage medium. Image annulus data or audio annulus data having a first data amount in accordance with a data amount required for reproduction for first reproduction time and low-resolution annulus data or frame-meta annulus data having a second data amount in accordance with a data amount required for reproduction for a second reproduction time that is different from the first reproduction time are recorded on an optical disk so that the data are periodically arranged. The image annulus data or the audio annulus data is extracted from a data series of corresponding video data or audio data. The low-resolution annulus data or the frame-meta annulus data is extracted from a data series of low-resolution that is video data having a less data amount or a series of frame metadata.Type: GrantFiled: April 2, 2004Date of Patent: July 17, 2012Assignee: Sony CorporationInventors: Mitsutoshi Shinkai, Hirofumi Murakami
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Patent number: 8208785Abstract: A video recording system is provided in which reliability of information supplied from a video camera to control recording and the like is improved when video being obtained by a video camera is recorded in one or more VTRs. In the video recording system, the video camera multiplexes: control information to control the VTR in accordance with an operational status of an operation unit of the video camera and a video signal from an imaging unit of the video camera, and transmits the result to the VTR as a transmission serial digital signal. The VTR separates the video signal and the control information from the serial digital signal and controls a video recording system of the VTR based on the control information.Type: GrantFiled: March 15, 2006Date of Patent: June 26, 2012Assignee: Sony CorporationInventors: Jin Yamashita, Tadashi Fujiwara, Hirofumi Murakami
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Publication number: 20120113166Abstract: A display method of an embodiment (i) determines a suitable length of an off period of an LED in accordance with a gray scale transition time, i.e., a time during which a transmittance of a liquid crystal is being changed, and (ii) turns off a light source for the determined length of the off period in a first half part of a one frame period. This makes it difficult for a halfway change in a gray scale transition to be reflected in a brightness of a pixel. Also, by performing a gray scale transition emphasis process to a display signal when the gray scale transition is caused, it is possible to increase the brightness of the pixel in the midst of the gray scale transition and to reduce a response time of the pixel. As such, it is possible to further improve a quality of moving image display.Type: ApplicationFiled: April 20, 2010Publication date: May 10, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Hirofumi Murakami, Kohji Fujiwara
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Patent number: 8079088Abstract: Disclosed herein is an information processing apparatus including: a unit information acquisition section; an identification information acquisition section; a secondary version information acquisition section; a comparison section; and an operation control section.Type: GrantFiled: November 16, 2007Date of Patent: December 13, 2011Assignee: Sony CorporationInventor: Hirofumi Murakami
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Publication number: 20110267383Abstract: An object of at least one embodiment of the present invention is to provide a liquid crystal display device and a driving method thereof, in which a contour of an image is clearly recognized during movie display even in a case where a backlight is turned on and off so as to change intervals at which the backlight turns on. In at least one embodiment, the liquid crystal display device includes a liquid crystal panel and the backlight that irradiates the liquid crystal panel with light, one frame period including a turn-on period during which the backlight turns on and a turn-off period during which the backlight turns off, luminance being changed by changing turn-on intervals of the backlight, the turn-on intervals of the backlight being changed by changing lengths of the turn-on period and the turn-off period.Type: ApplicationFiled: February 9, 2010Publication date: November 3, 2011Applicant: Sharp Kabushiki KaishaInventors: Hirofumi Murakami, Yuhji Tanaka, Shinji Horino
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Publication number: 20110253328Abstract: The object of the invention is to provide a papermaking felt which can be easily engaged in a papermaking machine, wherein the work time for engaging the felt is short, the initial warming-up period until reaching the highest papermaking speed is short, and the felt life is long. This object is achieved by integrating and attaching by dispersion in the batt layer of the felt a polymeric elastomer having high deformability when pressure is applied and good recoverability after pressure is applied. When said polymeric elastomer is in the form of a film and when measured at a room temperature of 20° C. and a relative humidity of 65%, the 100% modulus value of the film is 1 to 100 kg/cm2, the residual strain after 100% elongation is 30% or less, and the attached amount of polymeric elastomers is 0.5 to 20 wt. % of the papermaking press felt weight. Examples of materials include polyurethane elastomers, polyethylene elastomers, styrene-butadiene rubber, silicone rubber, or the like.Type: ApplicationFiled: June 25, 2010Publication date: October 20, 2011Applicant: Ichikawa Co., Ltd.Inventors: Takao YAZAKI, Takashi OUCHI, Hiroyuki ODA, Hirofumi MURAKAMI, Yuya TAKAMORI