Patents by Inventor Keiji Takahashi

Keiji Takahashi 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).

  • Publication number: 20240310746
    Abstract: Toner may comprise toner particles that comprise a binder resin; the toner particles have a volume average particle diameter from 4.0 ?m to 6.0 ?m, and the toner has a number content of coarse particle of 20 ?m or more from 10 to 250 in 10 mg of the toner.
    Type: Application
    Filed: March 15, 2024
    Publication date: September 19, 2024
    Inventors: Daisuke INOUE, Keiji MAKABE, Tsukiko TAKAHASHI, Taishi YAMASHITA, Shuto SUNAGA
  • Publication number: 20240295265
    Abstract: A work vehicle includes a hydrostatic continuously variable transmission to output power, an electric motor to perform shifting, a linkage mechanism to link a shifting shaft of the electric motor with a trunnion shaft of the hydrostatic continuously variable transmission the linkage mechanism, including a first linkage section linked with the shifting shaft, and a second linkage section linked with the trunnion shaft, and a biasing mechanism to press and bias a second gear of the second linkage section that meshes with a first gear of the first linkage section against the first gear such that a tooth flank of the second gear abuts with a tooth flank of the first gear in a rotation direction reverse to a rotation direction of the first gear.
    Type: Application
    Filed: May 15, 2024
    Publication date: September 5, 2024
    Inventors: Hiroaki NAGAI, Daisuke NAKAYAMA, Hironobu NOGAMI, Ryo MASUDA, Keiji TAKAHASHI, Tatsuya SAKAI
  • Patent number: 12081875
    Abstract: In an image processing apparatus, a first correction unit corrects imaging data acquired from an infrared imaging device, based on a first correction table, and outputs first corrected data. A second correction unit generates a second correction table for the imaging data in a state in which a shutter is closed, and outputs second corrected data based on the second correction table. A saturated region detection unit detects a saturated region in the imaging data. A shutter control unit performs closing control for the shutter, based on a result of detection of the saturated region. An abnormal pixel detection unit detects whether or not the imaging data acquired in the state in which the shutter is closed includes an abnormal pixel. A selection unit selects and outputs either the first corrected data or the second corrected data in accordance with a result of detection by the abnormal pixel detection unit.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: September 3, 2024
    Assignee: JVCKENWOOD CORPORATION
    Inventors: Keita Hayashi, Hirofumi Yamamoto, Tadashi Ishiwata, Yasufumi Nakaaki, Keiji Tsuchiya, Jun Takahashi
  • Patent number: 12055089
    Abstract: A work vehicle includes a diesel engine, a heater to heat a gas to be supplied to a combustion chamber of the diesel engine, and a controller to execute an afterglow routine to cause the heater to operate. The controller is configured or programmed to execute the afterglow routine in response to the diesel engine being started, an elapse of a predetermined stop time since an end of a previous execution of the afterglow routine, and the work vehicle being in a warming-up state.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: August 6, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Shota Nakano, Keiji Takahashi, Tsuyoshi Gono, Keita Ono, Norita Tottori, Naoya Okamoto, Ryosuke Tanaka
  • Publication number: 20240241458
    Abstract: A toner contains a mother toner particle containing a resin, a colorant, and a wax and an inorganic external additive on the surface of the mother toner particle, wherein the following relationships are satisfied: 20 < A ? 4 ? 0 Relationship ? 1 0 ? B - A ? 10 , Relationship ? 2 2.3 < C < 5. Relationship ? 3 where A (percent by mass) represents the liberation ratio of the inorganic external additive separated by shaking the toner with ultrasonic wave at a power of 20 W and a frequency of 20 kHz for one minute, B (percent by mass) represents the liberation ratio of the inorganic external additive separated by shaking the toner with ultrasonic wave at a power of 60 W and a frequency of 20 kHz for one minute, and C (percent by mass) represents the proportion of the inorganic external additive to the toner.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 18, 2024
    Inventors: Tsukiko TAKAHASHI, Daisuke INOUE, Keiji MAKABE, Taishi YAMASHITA, Shuto SUNAGA
  • Publication number: 20240169773
    Abstract: A work vehicle includes a battery, an operating apparatus to be supplied with power from the battery, an operating apparatus manager to manage operation of the operating apparatus, a reporting device in a driver's section, a voltage drop amount detector to detect an amount of voltage drop in the battery, and a voltage drop manager to report voltage drop information via the reporting device in response to the amount of voltage drop exceeding a permissible value during operation of the operating apparatus.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 23, 2024
    Inventors: Hiroshi MIYAKE, Akiya SHIBUTANI, Norita TOTTORI, Tsuyoshi GONO, Keiji TAKAHASHI
  • Patent number: 11965495
    Abstract: A working vehicle includes: a vehicle body provided with a traveling device; a hydraulic pump including a swashplate configured to change an output of the hydraulic pump according to a swashplate angle; a traveling motor including an output shaft having a rotation speed variable according to the output of the hydraulic pump and capable of transmitting power of the output shaft to the traveling device; an angle detector configured to detect the swashplate angle that is an angle of the swashplate; and a swashplate control unit configured to control the swashplate angle on the basis of control information relating to control of the swashplate angle and an actual swashplate angle that is the swashplate angle detected by the angle detector.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tsuyoshi Gono, Naoya Nihei, Yuji Hirase, Susumu Takeoka, Keiji Takahashi
  • Patent number: 11951827
    Abstract: The work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a controller capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tsuyoshi Gono, Naoya Nihei, Keiji Takahashi, Susumu Takeoka, Shusaku Yamaguchi, Yoichi Sugihara
  • Publication number: 20230392540
    Abstract: A work vehicle includes a diesel engine, a heater to heat a gas to be supplied to a combustion chamber of the diesel engine, and a controller to execute an afterglow routine to cause the heater to operate. The controller is configured or programmed to execute the afterglow routine in response to the diesel engine being started, an elapse of a predetermined stop time since an end of a previous execution of the afterglow routine, and the work vehicle being in a warming-up state.
    Type: Application
    Filed: May 25, 2023
    Publication date: December 7, 2023
    Inventors: Shota NAKANO, Keiji TAKAHASHI, Tsuyoshi GONO, Keita ONO, Norita TOTTORI, Naoya OKAMOTO, Ryosuke TANAKA
  • Patent number: 11801840
    Abstract: A work vehicle includes an engine, a transmission to change a received rotational force to a rotational force at a gear ratio that corresponds to a desired vehicle speed and output the changed rotational force, a first operating tool to change the rotation speed of the engine and a deceleration rate of the transmission, a rotation speed controller to control the rotation speed of the engine based on an input provided to the first operating tool, and a second operating tool to receive a holding instruction to hold the rotation speed of the engine constant. In response to the holding instruction being inputted to the second operating tool, the rotation speed controller is configured or programmed to disable control of the rotation speed of the engine which control is based on the input provided to the first operating tool, and hold the rotation speed of the engine constant in accordance with the holding instruction.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: October 31, 2023
    Assignee: KUBOTA CORPORATION
    Inventors: Keiji Takahashi, Tatsuya Sakai, Naoya Okamoto, Ryuji Kitagawa, Tsuyoshi Gono
  • Patent number: 11745584
    Abstract: A PTO shaft driving device in a working machine, includes a parking switch to detect parking of a vehicle body, a first switch located on a manipulator located on the vehicle body to output a PTO shaft control command that is either a driving command to drive a PTO shaft located on the vehicle body or a stopping command to stop the PTO shaft, a second switch located at a position different from the manipulator to output a PTO shaft control command that is either a driving command to drive the PTO shaft or a stopping command to stop the PTO shaft, a first permission switch to selectively permit or prohibit a stationary work when the parking switch detects the parking, and a controller configured or programmed to control driving of the PTO shaft. The controller is configured or programmed to selectively drive or stop the PTO shaft according to the PTO shaft control command from the first switch or the second switch when the stationary work is permitted by the first permission switch.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: September 5, 2023
    Assignee: KUBOTA CORPORATION
    Inventors: Keiji Takahashi, Tatsuya Sakai, Tsuyoshi Gono, Norita Tottori
  • Publication number: 20220281315
    Abstract: The work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a controller capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 8, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Tsuyoshi GONO, Naoya NIHEI, Keiji TAKAHASHI, Susumu TAKEOKA, Shusaku YAMAGUCHI, Yoichi SUGIHARA
  • Publication number: 20220192073
    Abstract: A working vehicle includes: a vehicle body; a lifting device provided on the vehicle body; a first setting member to set a reference position in a height direction of the working device coupled to the lifting device; a lifting operation member to be operated to raise and lower the lifting device; a first lifting control unit to perform reference lifting control to raise or lower the lifting device so that the working device is located at the reference position; and a second lifting control unit to stop the reference lifting control when the lifting operation member is operated during work by the working device and to raise or lower the lifting device in response to the operation of the lifting operation member. The first lifting control unit performs control to return the lifting device to a position corresponding to the reference position when the operation of the lifting operation member is released after the reference lifting control is stopped.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 23, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Tsuyoshi GONO, Susumu TAKEOKA, Toshiya TSUJI, Kazutaka FUJIMOTO, Keiji TAKAHASHI, Shinya YAMADA
  • Publication number: 20220196147
    Abstract: A working vehicle includes: a vehicle body provided with a traveling device; a hydraulic pump including a swashplate configured to change an output of the hydraulic pump according to a swashplate angle; a traveling motor including an output shaft having a rotation speed variable according to the output of the hydraulic pump and capable of transmitting power of the output shaft to the traveling device; an angle detector configured to detect the swashplate angle that is an angle of the swashplate; and a swashplate control unit configured to control the swashplate angle on the basis of control information relating to control of the swashplate angle and an actual swashplate angle that is the swashplate angle detected by the angle detector.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 23, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Tsuyoshi GONO, Naoya NIHEI, Yuji HIRASE, Susumu TAKEOKA, Keiji TAKAHASHI
  • Publication number: 20220185282
    Abstract: A work vehicle includes an engine, a transmission to change a received rotational force to a rotational force at a gear ratio that corresponds to a desired vehicle speed and output the changed rotational force, a first operating tool to change the rotation speed of the engine and a deceleration rate of the transmission, a rotation speed controller to control the rotation speed of the engine based on an input provided to the first operating tool, and a second operating tool to receive a holding instruction to hold the rotation speed of the engine constant. In response to the holding instruction being inputted to the second operating tool, the rotation speed controller is configured or programmed to disable control of the rotation speed of the engine which control is based on the input provided to the first operating tool, and hold the rotation speed of the engine constant in accordance with the holding instruction.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 16, 2022
    Inventors: Keiji TAKAHASHI, Tatsuya SAKAI, Naoya OKAMOTO, Ryuji KITAGAWA, Tsuyoshi GONO
  • Publication number: 20210402874
    Abstract: A PTO shaft driving device in a working machine, includes a parking switch to detect parking of a vehicle body, a first switch located on a manipulator located on the vehicle body to output a PTO shaft control command that is either a driving command to drive a PTO shaft located on the vehicle body or a stopping command to stop the PTO shaft, a second switch located at a position different from the manipulator to output a PTO shaft control command that is either a driving command to drive the PTO shaft or a stopping command to stop the PTO shaft, a first permission switch to selectively permit or prohibit a stationary work when the parking switch detects the parking, and a controller configured or programmed to control driving of the PTO shaft. The controller is configured or programmed to selectively drive or stop the PTO shaft according to the PTO shaft control command from the first switch or the second switch when the stationary work is permitted by the first permission switch.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 30, 2021
    Inventors: Keiji TAKAHASHI, Tatsuya SAKAI, Tsuyoshi GONO, Norita TOTTORI
  • Patent number: 10385052
    Abstract: Novel tricyclic compounds which have JAK inhibitory activities are useful for prevention, treatment or improvement of autoimmune diseases, inflammatory diseases and allergic diseases are provided. Novel tricyclic compound represented by the formula (I), the formula (II) or the formula (III) (wherein: each of A1, A2 and A3 is a cyclohexane-1,4-diyl group or the like; each of L1, L2 and L3 is a methylene group or the like; each of X1 and X3 is O or NH; each of R1 and R3 is a cyano C1-6 haloalkyl group or the like; and R2 is an aromatic heterocyclic group), a tautomer or pharmaceutically acceptable salt of the compound or a solvate thereof.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 20, 2019
    Assignee: Nissan Chemical Corporation
    Inventors: Tsuneo Watanabe, Keiji Takahashi, Keishi Hayashi, Takanori Nakamura, Masataka Minami, Kazunori Kurihara, Akio Yamamoto, Takuya Nishimura, Miyuki Uni, Toshihiko Kamiyama, Shunsuke Iwamoto
  • Patent number: 10013159
    Abstract: A driving support information display device includes a status display area controller, a menu display area controller, and a status information controller. The status display area controller manages a status display area having a plurality of status display sections arranged vertically in one side area of a display screen. The menu display area controller manages an upper menu display area having a plurality of selection button sections arranged side by side in an upper area of the display screen and a lower menu display area having a plurality of selection button sections arranged side by side in a lower area of the display screen. The status information controller displays status information in the status display section by providing to the status display area controller status information relating to a functional module assigned to the selection button section that has been touch input.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 3, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Keiji Takahashi, Susumu Umemoto, Eiji Nishi, Yoshihiro Kushita
  • Patent number: 9943023
    Abstract: A lift control apparatus includes a height sensor that outputs a height detection signal after a height of a ground work apparatus is detected. The ground work apparatus is coupled to a traveling work vehicle via a lift mechanism. An upper limit manager sets an upper limit position of the ground work apparatus based on an operation input signal from an input operation device for an upper limit setting USD. A setting prohibitor prohibits, when the upper limit position being set by the operation input signal is lower than the height of the ground work apparatus based on the height detection signal, the setting of the upper limit position from the operation input signal, and setting the upper limit position to the height of the ground work apparatus based on the height detection signal.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: April 17, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Shigeru Komatsu, Keiji Takahashi
  • Publication number: 20180099966
    Abstract: Novel tricyclic compounds which have JAK inhibitory activities are useful for prevention, treatment or improvement of autoimmune diseases, inflammatory diseases and allergic diseases are provided. Novel tricyclic compound represented by the formula (I), the formula (II) or the formula (III) (wherein: each of A1, A2 and A3 is a cyclohexane-1,4-diyl group or the like; each of L1, L2 and L3 is a methylene group or the like; each of X1 and X3 is 0 or NH; each of R1 and R3 is a cyano C1-6 haloalkyl group or the like; and R2 is an aromatic heterocyclic group), a tautomer or pharmaceutically acceptable salt of the compound or a solvate thereof.
    Type: Application
    Filed: December 13, 2017
    Publication date: April 12, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Tsuneo Watanabe, Keiji Takahashi, Keishi Hayashi, Takanori Nakamura, Masataka Minami, Kazunori Kurihara, Akio Yamamoto, Takuya Nishimura, Miyuki Uni, Toshihiko Kamiyama, Shunsuke Iwamoto