Patents by Inventor Keita Ishii
Keita Ishii 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: 11919455Abstract: A trunk structure for a vehicle improves retainment performance of goods to a vehicle body in a cargo net, and improves flexibility of the layout of a trunk board. The trunk structure includes a trunk board, a hook member attached to the trunk board to which a cargo net covering goods can be locked, an interior member which constitutes an inside surface of a trunk, and an engaged portion of the interior member which the hook member can engage, the engaged portion restraining movement of the trunk board in an up-down direction when the engaged portion is engaged with the hook member. The hook member is switchable between an engaged state where the hook member engages the engaged portion and a non-engaged state where the engagement is released, and retains the engaged state by locking the cargo net to the hook member.Type: GrantFiled: March 15, 2022Date of Patent: March 5, 2024Assignee: MAZDA MOTOR CORPORATIONInventors: Shinji Ishii, Keita Miyamoto, Takafumi Kawaura, Shumpei Kuwamura
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Patent number: 11486702Abstract: A method of determining a road surface condition includes: acquiring, when determining a condition of a road surface being in contact with a tire from a time-varying waveform of vibration of the running tire, the time-varying waveform of vibration having been detected by a vibration detecting means, a plurality of intrinsic vibration modes, from data of the time-varying waveform of vibration of the tire, using an algorithm of empirical mode decomposition; selecting an arbitrary intrinsic vibration mode from the plurality of intrinsic vibration modes; calculating a statistic amount from the distribution of feature data calculated by performing Hilbert transform on the selected intrinsic vibration mode to set the statistic amount as a feature amount; and determining the road surface condition from the feature amount and a feature amount obtained in advance for each road surface condition.Type: GrantFiled: April 26, 2018Date of Patent: November 1, 2022Assignee: BRIDGESTONE CORPORATIONInventor: Keita Ishii
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Publication number: 20210325240Abstract: In order to provide a method and a device for determining a tire type of a running tire from a vehicle side, when determining the tire type, which is the type of the tire, from an output of an acceleration sensor attached to an inner surface side of a tire tread of the tire mounted on a vehicle, a feature vector is extracted from an acceleration waveform detected from the output of the acceleration sensor, and the tire type of the tire is determined, by a machine learning algorithm, from the extracted feature vector. The tire type is determined on the basis of the extracted feature vector and a determination model in which a feature vector obtained in advance for each tire type has been configured as learning data.Type: ApplicationFiled: June 18, 2019Publication date: October 21, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Keita ISHII, Kazuo HAYASHI, Satoru KAWAMATA, Tomoyuki HANEDA
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Publication number: 20210309230Abstract: A method for determining a state of a road surface in which, a time-series waveform of tire vibration detected by an acceleration sensor is windowed by a windowing means with a time T and a feature vector Xi in each time window is calculated through the extraction of a time-series waveform of the tire-vibration in each time window. Thereafter, in the calculation of a kernel function KA from the feature vector Xi in each time window and a road surface feature vector YAj that is a feature vector in each time window calculated from a time-series waveform of tire-vibration that has been calculated in advance for each road surface state, the feature vector Xi in each time window and the road-surface feature vector YAj are made to be vibration levels of frequency bands of 500 Hz or greater extracted from the time-series waveform in each time window.Type: ApplicationFiled: April 26, 2018Publication date: October 7, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Keita ISHII, Takeshi MASAGO, Takato GOTO
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Publication number: 20200240777Abstract: A method of determining a road surface condition includes: acquiring, when determining a condition of a road surface being in contact with a tire from a time-varying waveform of vibration of the running tire, the time-varying waveform of vibration having been detected by a vibration detecting means, a plurality of intrinsic vibration modes, from data of the time-varying waveform of vibration of the tire, using an algorithm of empirical mode decomposition; selecting an arbitrary intrinsic vibration mode from the plurality of intrinsic vibration modes; calculating a statistic amount from the distribution of feature data calculated by performing Hilbert transform on the selected intrinsic vibration mode to set the statistic amount as a feature amount; and determining the road surface condition from the feature amount and a feature amount obtained in advance for each road surface condition.Type: ApplicationFiled: April 26, 2018Publication date: July 30, 2020Applicant: BRIDGESTONE CORPORATIONInventor: Keita ISHII
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Publication number: 20200031178Abstract: A fitting structure between a functional component accommodation case and a rubber base, the functional component accommodation case being configured to accommodate a functional component that detects a state of a tire, and the rubber base being configured to be attached to an inner surface of the tire so as to mount the functional component accommodation case. The fitting structure includes plural case-side convex/concave parts that are formed on a case bottom surface which is a surface on a tire inner surface side of the functional component accommodation case and that extend in mutually intersecting directions, and plural base-side convex/concave parts that are formed on a functional component accommodation case side of a base bottom part, which is an attachment part to be attached to the tire, of the rubber base and that fit with the case-side convex/concave parts.Type: ApplicationFiled: April 12, 2018Publication date: January 30, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Keita ISHII, Yasumichi WAKAO, Satoru KAWAMATA
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Publication number: 20170345396Abstract: In one aspect, a device includes a processor, a display accessible to the processor, and storage accessible to the processor. The storage bears instructions executable by the processor to identify a location of at least one fold line along which the display is folded, where a first display zone is established on a first side of the fold line and a second display zone is established on a second side of the fold line. The instructions are also executable to, based on identification of the location of the at least one fold line, establish a first display mode in the first display zone and a second display mode in the second display zone, where the first display mode is different from the second display mode.Type: ApplicationFiled: May 24, 2016Publication date: November 30, 2017Inventors: JONATHAN JEN-WEI YU, AARON MICHAEL STEWART, TAKUMI IMAI, KEITA ISHII
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Publication number: 20110316842Abstract: Provided is a method of driving an information display panel in which at least two types of display media comprised of particle groups containing chargeable particles are sealed between two opposed substrates, at least one substrate being transparent, and a voltage is applied across a pair of opposed pixel electrodes formed by providing conductive films to the respective substrates to move the display media, thereby displaying an information image, wherein, in a series of alternating voltage pulses applied at the time of deleting the information image displayed on the information display panel, there is provided an OFF time, which is a period during which application voltage of 0 volt is maintained during change of polarity of each pulse voltage.Type: ApplicationFiled: December 8, 2009Publication date: December 29, 2011Applicant: BRIDGESTONE CORPORATIONInventors: Shuhei Yamada, Hajime Tamura, Takanori Shoji, Keita Ishii, Shinya Tsuchida, Kimitoshi Aoki
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Publication number: 20110242081Abstract: Provided is a method of driving an information display panel in which: at least two types of display media comprised of particle groups containing chargeable particles are sealed between opposed two substrates, at least one substrate being transparent; a voltage is applied across a pair of opposed pixel electrodes formed such that conductive films provided to the respective substrates face each other to move the display media, thereby displaying an information image, wherein, at the time of deleting the information image displayed on the information display panel, application of an alternating voltage and application of positive or negative voltage two or more cycles in a row are combined to delete the information image. With this method of driving an information display panel, it is possible to sufficiently delete a history of a previously displayed information image without causing the decrease in lifetime of display-rewriting and increase in power consumption.Type: ApplicationFiled: December 8, 2009Publication date: October 6, 2011Applicant: BRIDGESTONE CORPORATIONInventors: Shuhei Yamada, Hajime Tamura, Takanori Shoji, Keita Ishii, Shinya Tsuchida, Kimitoshi Aoki
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Patent number: 7683867Abstract: A system, method, and computer-usable medium are presented for controlling viewing angle characteristics by performing a color palette gradation control of a liquid crystal display, such that adjustment effects on a viewing angle range are improved.Type: GrantFiled: January 20, 2006Date of Patent: March 23, 2010Assignee: Lenovo (Singapore) Pte. Ltd.Inventors: Kohji Inoue, Manabu Kodate, Keita Ishii, Rieko Kataoka
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Patent number: 7675574Abstract: A display mode switching device and method automatically switches a display mode of a television set to an overscan mode or to an underscan mode depending on a content of a screen. In a case of connecting a television set to a computer, a call from an application for an API in an OS is detected by a device driver when a user starts playing a DVD or a game. Accordingly, an output mode for the television set is switched to the overscan mode. In this way, a motion video or a game is displayed on the television set in the overscan mode. Meanwhile, when the user finishes playing the DVD or the game, a call for the API to release resources is detected by the device driver, and the output mode is restored to the underscan mode. In this way, a computer screen is displayed on the television set in the underscan mode.Type: GrantFiled: May 18, 2005Date of Patent: March 9, 2010Assignee: Lenovo (Singapore) Pte. Ltd.Inventors: Keita Ishii, Masaki Oie, Yasumasa Takeda
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Publication number: 20090117260Abstract: An organic acid metal salt is brought into contact with and adhered to phosphor particles, thereby forming phosphor particles each having an organic acid metal salt layer on the surface. When forming a phosphor layer by using the phosphor particles, sintering is performed, and the organic acid metal salt layer is changed into a metal oxide film.Type: ApplicationFiled: November 6, 2008Publication date: May 7, 2009Inventors: Keita ISHII, Katsuyuki Aoki
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Publication number: 20080248413Abstract: On the surface of a core particle of a toner particle, a silane coupling agent treatment layer, a coating layer of thermoplastic resin microparticles applied to the core particle and a charge control agent added to the coating layer through the silane coupling agent treatment layer are provided, wherein the toner particle has a particle diameter of 1 to 10 ?m, or on the surface of a core particle of a toner particle, a coating layer of thermoplastic resin microparticles and a charge control agent added to the coating layer and made of an organic compound containing at least one type of lanthanoid metal are provided, or on a ZnS type fluorescent body core particle, a coating layer of thermoplastic resin microparticles and a charge control agent added to the coating layer and including a metal compound containing the IIA metal or IIIA group metal are provided.Type: ApplicationFiled: March 25, 2008Publication date: October 9, 2008Inventors: Keita Ishii, Yasushi Shinjo, Hirofumi Takemura, Katsuyuki Aoki
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Publication number: 20060164329Abstract: A system, method, and computer-usable medium are presented for controlling viewing angle characteristics by performing a color palette gradation control of a liquid crystal display, such that adjustment effects on a viewing angle range are improved.Type: ApplicationFiled: January 20, 2006Publication date: July 27, 2006Inventors: Kohji Inoue, Manabu Kodate, Keita Ishii, Rieko Kataoka
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Publication number: 20050266923Abstract: A display mode switching device and method automatically switches a display mode of a television set to an overscan mode or to an underscan mode depending on a content of a screen. In a case of connecting a television set to a computer, a call from an application for an API in an OS is detected by a device driver when a user starts playing a DVD or a game. Accordingly, an output mode for the television set is switched to the overscan mode. In this way, a motion video or a game is displayed on the television set in the overscan mode. Meanwhile, when the user finishes playing the DVD or the game, a call for the API to release resources is detected by the device driver, and the output mode is restored to the underscan mode. In this way, a computer screen is displayed on the television set in the underscan mode.Type: ApplicationFiled: May 18, 2005Publication date: December 1, 2005Applicant: LENOVO (SINGAPORE) PTE. LTD.Inventors: Keita Ishii, Masaki Oie, Yasumasa Takeda
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Publication number: 20020109687Abstract: A computer system, display device, display controller, and image processing method are described which provide high visibility and usability. A portion of an image displayed on a display screen of the display device is enlarged in one direction and the enlarged image is displayed in a window. In one example, a portion of the image displayed in the display is enlarged in the vertical direction when the text runs along a horizontal direction.Type: ApplicationFiled: December 13, 2001Publication date: August 15, 2002Applicant: International Business Machines CorporationInventors: Keita Ishii, Kenichi Kurumiya, Arimasa Naitoh, Yasumasa Takeda
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Publication number: 20020044156Abstract: A computer apparatus, a display apparatus, a display control apparatus, a storage medium, a program transmission apparatus, and a display control method that enable visibility to be improved without decreasing ease of use, is provided for. By setting a viewport VP of a prescribed range with a mouse pointer MP as its center and changing a resolution of a display unit 12 when a user performs prescribed operations, an image within a range of the viewport VP is displayed in enlarged form in the entire area of a display area A of the display unit 12.Type: ApplicationFiled: August 22, 2001Publication date: April 18, 2002Applicant: International Business Machines CorporationInventors: Yasunori Maezawa, Hidetoshi Mori, Keita Ishii, Masaru Saitoh
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Patent number: 6028585Abstract: An information handling apparatus and screen display control method for appropriately controlling a screen display when a changed output destination for a display signal is selected from among a plurality of display devices having different resolutions.Type: GrantFiled: July 1, 1996Date of Patent: February 22, 2000Assignee: International Business Machines CorporationInventors: Keita Ishii, Kenichi Kurumiya, Tatsumi Nagasawa