Patents by Inventor Hiroyuki Akiyama
Hiroyuki Akiyama 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: 20240377687Abstract: A liquid crystal display panel includes an active matrix substrate including a gate layer including gate lines, a source layer including source lines, and an alignment film covering the gate layer and the source layer, a color filter substrate, placed opposite the active matrix substrate, that includes a black matrix including, in planar view, first portions separately overlapping each of the source lines and second portions crossing the first portions and separately overlapping each of the gate lines and spacers disposed in cross regions in which the first portions and the second portions cross each other, and a liquid crystal layer disposed between the active matrix substrate and the color filter substrate. The active matrix substrate further includes bank portions provided in positions surrounding the spacers within regions overlapping the cross regions in planar view.Type: ApplicationFiled: March 22, 2024Publication date: November 14, 2024Inventors: Hiroto AKIYAMA, Hiroyuki OHGAMI
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Publication number: 20240326757Abstract: A drive motor control system performs control of a drive motor of a vehicle that includes the drive motor and a battery. The drive motor control system includes a control processor that controls an electric current supply from the battery to the drive motor and includes an operational state determiner that determines whether a condition that the vehicle is being stopped, a condition that a parking brake is being released, and a condition that a parking range is being selected are satisfied. When the operational state determiner determines that all the conditions are satisfied upon a reception of a trigger signal instructing a start of the control of the drive motor, the control processor performs control of an inverter such that the electric current supply is performed to cause the drive motor to repeat small revers rotations and thereby induce small movements of the vehicle in front and rear directions.Type: ApplicationFiled: March 19, 2024Publication date: October 3, 2024Inventors: Shotaro SUZUKI, Yoshitsugu INOUE, Hiroyuki AKIYAMA, Go YANAGISAWA, Takahiro KAWASHIRI, Tong WANG
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Publication number: 20240328799Abstract: An information processing apparatus includes one or more processors and one or more storage media storing a program. The program includes one or more instructions that cause the one or more processors to execute acquiring information on a current location of a vehicle and a destination of the vehicle; acquiring one or more scheduled travel routes for reaching the destination from the current location; acquiring current weather information; predicting a standstill section in which a standstill situation is likely to occur on the one or more scheduled travel routes; predicting a standstill time during which a standstill situation occurs in the predicted standstill section; calculating heating power consumption due to use of heating over the predicted standstill time; performing a determination as to whether to additionally charge a traveling battery of the vehicle in accordance with the heating power consumption; and presenting information corresponding to a result of the determination.Type: ApplicationFiled: March 4, 2024Publication date: October 3, 2024Applicant: SUBARU CORPORATIONInventors: Takahiro KAWASHIRI, Tong WANG, Hiroyuki AKIYAMA, Go YANAGISAWA, Shotaro SUZUKI, Yoshitsugu INOUE
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Patent number: 12105009Abstract: In relation to application of artificial intelligence to image analysis of particles, to make it possible to provide data for machine learning corresponding to user demands while making it possible to reduce, as much as possible, man-hours taken to, for example, prepare vast amounts of actual image data obtained by actually capturing images of particles, the present invention generates virtual particle image data, which is image data of a virtual particle, on the basis of a predetermined condition, generates label data corresponding to the virtual particle, and associates the virtual particle image data with the label data.Type: GrantFiled: July 5, 2019Date of Patent: October 1, 2024Assignee: HORIBA, LTD.Inventors: Hiroyuki Koshikawa, Hisashi Akiyama, Tetsuya Mori, Kosuke Matsuo, Hitoshi Nakatani, Toshihiro Katsuda
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Patent number: 11760338Abstract: A vehicle control apparatus to be applied to a hybrid vehicle includes a continuously variable transmission, a clutch mechanism, and a travel processor. The continuously variable transmission is coupled to an engine and a first motor via an input passage, and coupled to drive wheels via an output passage. The clutch mechanism is provided on the output passage. When the travel mode is switched from a first mode in which the clutch mechanism is engaged to the second mode in which the clutch mechanism is released, the travel processor releases the clutch mechanism and stops the continuously variable transmission while maintaining a speed ratio of the continuously variable transmission. When the travel mode is switched from the second mode to the first mode, the travel processor synchronizes rotation speeds of input-side and output-side portions of the clutch mechanism by controlling the continuously variable transmission, and engages the clutch mechanism.Type: GrantFiled: September 22, 2021Date of Patent: September 19, 2023Assignee: SUBARU CORPORATIONInventors: Satoshi Inoue, Hiroyuki Akiyama, Naohiko Hirosumi
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Patent number: 11607953Abstract: A vehicle control system to be mounted in a hybrid electric vehicle includes an engine, a center differential that includes a front-wheel-side output portion and a rear-wheel-side output portion and distributes torque outputted from the engine to a front wheel and a rear wheel, a limited slip differential mechanism that limits a differential between the front-wheel-side output portion and the rear-wheel-side output portion, and a motor disposed in a drive-power transferring system that transfers drive power from the rear-wheel-side output portion to the rear wheel. The vehicle control system includes a processor. When the hybrid electric vehicle is switched from a first traveling mode to a second traveling mode, the processor stops the engine while causing the limited slip differential mechanism to limit the differential between the front-wheel-side output portion and the rear-wheel-side output portion.Type: GrantFiled: August 18, 2021Date of Patent: March 21, 2023Assignee: SUBARU CORPORATIONInventors: Naohiko Hirosumi, Satoshi Inoue, Hiroyuki Akiyama
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Publication number: 20220097681Abstract: A vehicle control apparatus to be applied to a hybrid vehicle includes a continuously variable transmission, a clutch mechanism, and a travel processor. The continuously variable transmission is coupled to an engine and a first motor via an input passage, and coupled to drive wheels via an output passage. The clutch mechanism is provided on the output passage. When the travel mode is switched from a first mode in which the clutch mechanism is engaged to the second mode in which the clutch mechanism is released, the travel processor releases the clutch mechanism and stops the continuously variable transmission while maintaining a speed ratio of the continuously variable transmission. When the travel mode is switched from the second mode to the first mode, the travel processor synchronizes rotation speeds of input-side and output-side portions of the clutch mechanism by controlling the continuously variable transmission, and engages the clutch mechanism.Type: ApplicationFiled: September 22, 2021Publication date: March 31, 2022Inventors: Satoshi INOUE, Hiroyuki AKIYAMA, Naohiko HIROSUMI
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Patent number: 11261942Abstract: A speed reducer capable of reliably reducing and changing speed while suppressing heat generation and abrasion includes: a plurality of gears rotatably supported on an output shaft; a shifter engageable with an engagement gear selected from the plurality of gears to couple the engagement gear to the output shaft; and a plurality of bushes disposed in an annular groove formed in the shifter to move the shifter to the engagement gear and thereby engage the shifter with the engagement gear; and a bush support supporting the plurality of bushes so as to allow them to swing individually.Type: GrantFiled: February 9, 2018Date of Patent: March 1, 2022Assignee: KOBE STEEL, LTD.Inventors: Hiroyuki Akiyama, Yasuo Yoshii, Yuji Konishi, Kazuo Yamaguchi, Kazuo Iritani
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Publication number: 20220055475Abstract: A vehicle control system to be mounted in a hybrid electric vehicle includes an engine, a center differential that includes a front-wheel-side output portion and a rear-wheel-side output portion and distributes torque outputted from the engine to a front wheel and a rear wheel, a limited slip differential mechanism that limits a differential between the front-wheel-side output portion and the rear-wheel-side output portion, and a motor disposed in a drive-power transferring system that transfers drive power from the rear-wheel-side output portion to the rear wheel. The vehicle control system includes a processor. When the hybrid electric vehicle is switched from a first traveling mode to a second traveling mode, the processor stops the engine while causing the limited slip differential mechanism to limit the differential between the front-wheel-side output portion and the rear-wheel-side output portion.Type: ApplicationFiled: August 18, 2021Publication date: February 24, 2022Applicant: SUBARU CORPORATIONInventors: Naohiko HIROSUMI, Satoshi INOUE, Hiroyuki AKIYAMA
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Patent number: 10871219Abstract: Provided is a speed-switchable reduction gear including: an input shaft; an output shaft; a plurality of output-side geared-wheels mounted on the output shaft; a shifter for selecting the output-side geared-wheel to be used; a shifter-side first bearing and a non-shifter-side second bearing provided to each the output-side geared-wheel; and a plurality of dividing walls each provided in each cell between the first and second bearings. The output shaft has an axial lubricating-oil flow path and a plurality of supply flow paths. Each dividing wall divides each cell into a first cell adjacent to the first bearing and a second cell adjacent to the second bearing and allows lubricating oil to be supplied from the supply flow paths into the first and second cells so as to make pressure of lubricating oil in the first cell higher than that in the second cell.Type: GrantFiled: February 10, 2017Date of Patent: December 22, 2020Assignee: Kobe Steel, Ltd.Inventors: Hiroyuki Akiyama, Yasuo Yoshii, Yuji Konishi, Kazuo Yamaguchi, Kazuo Iritani
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Publication number: 20190383362Abstract: A speed reducer capable of reliably reducing and changing speed while suppressing heat generation and abrasion includes: a plurality of gears rotatably supported on an output shaft; a shifter engageable with an engagement gear selected from the plurality of gears to couple the engagement gear to the output shaft; and a plurality of bushes disposed in an annular groove formed in the shifter to move the shifter to the engagement gear and thereby engage the shifter with the engagement gear; and a bush support supporting the plurality of bushes so as to allow them to swing individually.Type: ApplicationFiled: February 9, 2018Publication date: December 19, 2019Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Hiroyuki AKIYAMA, Yasuo YOSHII, Yuji KONISHI, Kazuo YAMAGUCHI, Kazuo IRITANI
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Publication number: 20190048993Abstract: Provided is a speed-switchable reduction gear including: an input shaft; an output shaft; a plurality of output-side geared-wheels mounted on the output shaft; a shifter for selecting the output-side geared-wheel to be used; a shifter-side first bearing and a non-shifter-side second bearing provided to each the output-side geared-wheel; and a plurality of dividing walls each provided in each cell between the first and second bearings. The output shaft has an axial lubricating-oil flow path and a plurality of supply flow paths. Each dividing wall divides each cell into a first cell adjacent to the first bearing and a second cell adjacent to the second bearing and allows lubricating oil to be supplied from the supply flow paths into the first and second cells so as to make pressure of lubricating oil in the first cell higher than that in the second cell.Type: ApplicationFiled: February 10, 2017Publication date: February 14, 2019Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Hiroyuki AKIYAMA, Yasuo YOSHII, Yuji KONISHI, Kazuo YAMAGUCHI, Kazuo IRITANI
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Patent number: 9822745Abstract: An injector drive device supplies driving electric power to injectors injecting fuel to cylinders of an internal combustion engine. The cylinders are grouped into multiple groups including at least a first cylinder group and a second cylinder group. The injector drive device includes: a booster circuit that boosts voltage of electric power supplied from an external power source; a first and second capacitors that accumulates electric power to be supplied to the injectors of the first cylinder group and the second cylinder group respectively; switch elements that selectively supply the output of the booster circuit to the capacitors; and a controller that, in the case where a charging amounts of the capacitors both are below a predetermined value, switches the switch elements to supply the output of the booster circuit preferentially to the capacitor that has a shorter period until a next planned fuel discharge start.Type: GrantFiled: September 3, 2015Date of Patent: November 21, 2017Assignee: SUBARU CORPORATIONInventor: Hiroyuki Akiyama
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Publication number: 20160069311Abstract: An injector drive device supplies driving electric power to injectors injecting fuel to cylinders of an internal combustion engine. The cylinders are grouped into multiple groups including at least a first cylinder group and a second cylinder group. The injector drive device includes: a booster circuit that boosts voltage of electric power supplied from an external power source; a first and second capacitors that accumulates electric power to be supplied to the injectors of the first cylinder group and the second cylinder group respectively; switch elements that selectively supply the output of the booster circuit to the capacitors; and a controller that, in the case where a charging amounts of the capacitors both are below a predetermined value, switches the switch elements to supply the output of the booster circuit preferentially to the capacitor that has a shorter period until a next planned fuel discharge start.Type: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventor: Hiroyuki AKIYAMA
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Patent number: 8175048Abstract: A multi-hop wireless communication system which synchronizes a time signal generated by a timer device included in each of the wireless terminals and sets a different active timing to a wireless terminal connected to each of a plurality of multi-hop routes. The wireless terminal monitors the time signal of the timer device included in the wireless terminal and activates wireless communication of the wireless terminal when it is detected that the time signal matches an active timing set in the wireless terminal.Type: GrantFiled: January 15, 2009Date of Patent: May 8, 2012Assignee: Lapis Semiconductor Co., Ltd.Inventor: Hiroyuki Akiyama
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Patent number: 7577434Abstract: A handover method is to provided by which a station can move between access points with interruption in communication minimized. An access point assigns mobile stations existing in its own wireless network to identification codes, different from station to station, to thereby carry out association, and thereafter transmits beacon frames each containing a different identification code to the mobile stations. The identification codes are allocated beforehand specifically to each of the access points included in the wireless LAN. When the station is handed over to an adjacent access point, the adjacent access point transmits beacon frames containing the corresponding identification code to that station. Thus, the station is able to continue communication without recognizing the transfer from one wireless network to another.Type: GrantFiled: March 22, 2006Date of Patent: August 18, 2009Assignee: Oki Semiconductor Co., Ltd.Inventors: Yoshihisa Nakano, Hiroyuki Akiyama, Takashi Namura
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Publication number: 20090190542Abstract: A multi-hop wireless communication system which synchronizes a time signal generated by a timer device included in each of the wireless terminals and sets a different active timing to a wireless terminal connected to each of a plurality of multi-hop routes. The wireless terminal monitors the time signal of the timer device included in the wireless terminal and activates wireless communication of the wireless terminal when it is detected that the time signal matches an active timing set in the wireless terminal.Type: ApplicationFiled: January 15, 2009Publication date: July 30, 2009Applicant: OKI SEMICONDUCTOR CO., LTD.Inventor: Hiroyuki AKIYAMA
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Publication number: 20090175255Abstract: A wireless terminal device and a wireless base station device can reduce power consumption required to transmit or receive data in a wireless manner. A frame sent from a wireless LAN terminal station, transfer source, is sent to another wireless LAN terminal station, transfer destination, on a transfer route indicated by routing information stored in a memory to establish a multi-hop communication with a wireless LAN base station.Type: ApplicationFiled: January 7, 2009Publication date: July 9, 2009Applicant: OKI SEMICONDUCTOR CO., LTD.Inventors: Hiroyuki AKIYAMA, Hideaki ODAGIRI
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Patent number: 7515527Abstract: An SDH transmission apparatus including a low-speed part, a high-speed part, and a cross-connect part is disclosed. The low speed part includes a first signal transmission part and a second signal transmission part, each signal transmission part including an active transmission part and a standby transmission part. In the SDH transmission apparatus, an active transmission part of the first signal transmission part transmits a signal to a first transmission line via the high-speed part, an active transmission part of the second signal transmission part transmits a signal to a second transmission line via the high-speed part, and a standby transmission part of the first signal transmission part sends a part of signals supplied to the first signal transmission part to the second transmission line via the high-speed part when a traffic amount of the signals supplied to the first signal transmission part exceed a predetermined value.Type: GrantFiled: July 25, 2005Date of Patent: April 7, 2009Assignee: Fujitsu LimitedInventors: Hiroyuki Akiyama, Takashi Fukagawa
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Publication number: 20080288852Abstract: A multicarrier wireless communication system is capable of switching the modulation scheme used by each carrier during communication. This communication system includes error detectors for detecting error bits separately for respective carriers by comparing the data block of each carrier before and after correction. The modulation scheme used by a particular carrier is switched to an appropriate modulation scheme, when the S/N ratio of the particular carrier is deteriorated or improved, on the basis of the information about the corrected error bits.Type: ApplicationFiled: November 27, 2007Publication date: November 20, 2008Applicant: OKI ELECTRIC INDUSTRY CO., LTD.Inventors: Teruaki Uehara, Masato Yamazaki, Hiroyuki Akiyama