Patents by Inventor Kazuma Mochizuki

Kazuma Mochizuki 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: 20240052988
    Abstract: A lens unit (40) includes a plurality of lens members (60, 70, 80), and a lens holder (50) including a support portion (51) formed in a cylindrical shape having an opening (51h1) at one end through which each of the plurality of lens members (60, 70, 80) can be inserted. The support portion (51) supports the plurality of lens members (60, 70, 80) so as for the plurality of lens members to be arranged along a central axis (51a) of the support portion (51), and a communication portion (56) that lets an inside and an outside of the support portion (51) communicate with each other and exposes an outer peripheral portion (62, 72, 82) of at least one of the plurality of lens members (60, 70, 80) from the support portion (51) is formed on a side wall of the support portion (51).
    Type: Application
    Filed: December 9, 2021
    Publication date: February 15, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuma MOCHIZUKI
  • Publication number: 20240035639
    Abstract: A vehicular headlight (20) includes a first light source unit (41), a second light source unit (61), a temperature sensor (47), and a control unit (110). When the temperature derating is performed on the first light source unit (41) based on the temperature in a state where the light distribution pattern (910) of a low-beam is formed, the control unit (110) controls the power to be supplied to each of a plurality of light-emitting elements (43) so that the light amount of at least a part of the first light with which at least a region (911) of a first light distribution pattern (400) is irradiated decreases as compared with that before the temperature derating.
    Type: Application
    Filed: December 9, 2021
    Publication date: February 1, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kazuma MOCHIZUKI, Atsushi SUGIMOTO, Tomoyuki OHNO, Takashi TERAYAMA, Toshiyuki TSUCHIYA, Atsushi UESUGI
  • Publication number: 20230272898
    Abstract: A vehicle lamp includes: a circuit board on which a light source is mounted; a heat sink having a front surface or a rear surface to which the circuit board is attached and configured to release heat generated when the light source is driven; and a cooling fan disposed above or below the circuit board and the heat sink. Cooling air generated by the cooling fan flows along the heat sink and the light source.
    Type: Application
    Filed: June 23, 2021
    Publication date: August 31, 2023
    Inventors: Kazuma MOCHIZUKI, Teppei MURAMATSU
  • Publication number: 20230098917
    Abstract: A vehicle headlight (1) includes a first lamp unit (10) that includes a light distribution pattern forming unit (12) which forms a predetermined light distribution pattern (P1) according to the light amount of the light emitted from a plurality of light emitting elements (13), and a second lamp unit (20), in which a light distribution pattern (PL) of a low beam is formed by light emitted from the first lamp unit (10) and light emitted from the second lamp unit (20), and in the light distribution pattern (PL) of the low beam, the elbow point (EP) is included in a predetermined region (CA) formed by light including the light from the first lamp unit (10), and a first side region (SA1) and a second side region (SA2) sandwiching the predetermined region (CA) are formed by the light emitted from the second lamp unit (20).
    Type: Application
    Filed: March 1, 2021
    Publication date: March 30, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kazuma MOCHIZUKI, Atsushi SUGIMOTO, Tomoyuki OHNO, Takashi TERAYAMA
  • Patent number: 11092308
    Abstract: A light emitting element, a reflector, a projection lens, and a movable shade are arranged in a lamp chamber. As the movable shade is erected, a low beam is formed. As the movable shade is tilted, a travelling beam is formed. The reflector and a sub reflector are integrally formed. The movable reflector reflects the reflected light reflected by the sub reflector toward the projection lens. The sub reflector is positioned in a range of an outer shape of the projection lens.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 17, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Akinori Matsumoto, Kazuma Mochizuki, Yoshiyuki Nakanishi, Teppei Muramatsu
  • Publication number: 20190211990
    Abstract: A light emitting element, a reflector, a projection lens, and a movable shade are arranged in a lamp chamber. As the movable shade is erected, a low beam is formed. As the movable shade is tilted, a travelling beam is formed. The reflector and a sub reflector are integrally formed. The movable reflector reflects the reflected light reflected by the sub reflector toward the projection lens. The sub reflector is positioned in a range of an outer shape of the projection lens.
    Type: Application
    Filed: September 15, 2017
    Publication date: July 11, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Akinori MATSUMOTO, Kazuma MOCHIZUKI, Yoshiyuki NAKANISHI, Teppei MURAMATSU
  • Patent number: 9981595
    Abstract: Provided is a vehicle lamp including an optical unit including an optical element and a solenoid that drives the optical element; and a driving circuit configured to receive a voltage from a DC power supply and apply a driving voltage to the solenoid. The driving circuit includes a signal generating circuit that generates a notification signal indicating whether or not the solenoid is open-circuited. The signal generating circuit generates a first signal as the notification signal when the solenoid is normal. The notification signal is set as a second signal that is different from the first signal when open-circuit of the solenoid is detected.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 29, 2018
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yuji Sugiyama, Teppei Muramatsu, Yoshinao Daicho, Kazuma Mochizuki, Tetsuya Ishida
  • Publication number: 20170210279
    Abstract: Provided is a vehicle lamp including an optical unit including an optical element and a solenoid that drives the optical element; and a driving circuit configured to receive a voltage from a DC power supply and apply a driving voltage to the solenoid. The driving circuit includes a signal generating circuit that generates a notification signal indicating whether or not the solenoid is open-circuited. The signal generating circuit generates a first signal as the notification signal when the solenoid is normal. The notification signal is set as a second signal that is different from the first signal when open-circuit of the solenoid is detected.
    Type: Application
    Filed: January 17, 2017
    Publication date: July 27, 2017
    Inventors: Yuji Sugiyama, Teppei Muramatsu, Yoshinao Daicho, Kazuma Mochizuki, Tetsuya Ishida
  • Patent number: 9528677
    Abstract: A movable shade (17) is capable of being pivoted about a pivot shaft (19), and switches a shielded amount of light emitted from a light source in accordance with a pivot amount. A solenoid (21) has an output shaft (41) capable of being axially moved. A link member (20) is connected to the output shaft (41), and is displaced in conjunction with a movement of the output shaft (41). A projection (28) is provided on the movable shade (17). A sliding contact portion (37) is provided on the link member (20), and abutted against the projection (28). The movable shade (17) is configured in such a manner as to be pivoted about the pivot shaft (19) when the projection (28) slides on the sliding contact portion (37) in accordance with a displacement of the link member (20). A surface (28a) of the projection (28) is formed as a curved surface.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: December 27, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuma Mochizuki
  • Publication number: 20150362146
    Abstract: A movable shade (17) is capable of being pivoted about a pivot shaft (19), and switches a shielded amount of light emitted from a light source in accordance with a pivot amount. A solenoid (21) has an output shaft (41) capable of being axially moved. A link member (20) is connected to the output shaft (41), and is displaced in conjunction with a movement of the output shaft (41). A projection (28) is provided on the movable shade (17). A sliding contact portion (37) is provided on the link member (20), and abutted against the projection (28). The movable shade (17) is configured in such a manner as to be pivoted about the pivot shaft (19) when the projection (28) slides on the sliding contact portion (37) in accordance with a displacement of the link member (20). A surface (28a) of the projection (28) is formed as a curved surface.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 17, 2015
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuma MOCHIZUKI
  • Patent number: 7661856
    Abstract: A vehicular lamp 1 including a lamp chamber 7, which is formed with a lamp body 3 and a transparent front cover 5 attached to the front opening of the lamp body, and a lamp unit 13, which includes a reflector 9 and a light source 11 and is provided in the lamp chamber 7 so that the optical axis direction of the lamp unit is adjusted by a tilting movement adjustment mechanism 15, wherein a millimeter wave radar device 25 is attached to the lamp body, and a reflection mirror 31 that reflects, toward the front of the lamp, a millimeter wave signal 29 emitted by the millimeter wave radar device is attached to a supporting frame 21 which is a part of the tilting movement adjustment mechanism.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 16, 2010
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiromi Nakamura, Kazuma Mochizuki, Yoshinao Daicho, Hiromi Umehara, Yasuo Teranishi
  • Publication number: 20080158897
    Abstract: A vehicular lamp 1 including a lamp chamber 7, which is formed with a lamp body 3 and a transparent front cover 5 attached to the front opening of the lamp body, and a lamp unit 13, which includes a reflector 9 and a light source 11 and is provided in the lamp chamber 7 so that the optical axis direction of the lamp unit is adjusted by a tilting movement adjustment mechanism 15, wherein a millimeter wave radar device 25 is attached to the lamp body, and a reflection mirror 31 that reflects, toward the front of the lamp, a millimeter wave signal 29 emitted by the millimeter wave radar device is attached to a supporting frame 21 which is a part of the tilting movement adjustment mechanism.
    Type: Application
    Filed: December 4, 2007
    Publication date: July 3, 2008
    Inventors: Hiromi Nakamura, Kazuma Mochizuki, Yoshinao Daicho, Hiromi Umehara, Yasuo Teranishi
  • Patent number: 7387415
    Abstract: A vehicular lamp has a lamp unit with a light source and controls light from the light source to obtain a predetermined light distribution, and an actuator that rotates the lamp unit using an output shaft to change a direction of illumination. A direction for drawing out an external cord that is connected to a connector, which is provided in the actuator for admitting electric power and/or a signal from outside, is set toward the vehicle front or vehicle side in the actuator.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: June 17, 2008
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
  • Patent number: 7291951
    Abstract: An actuator has a housing that accommodates a motor, an output shaft for rotating a lamp unit that radiates light, a drive mechanism portion formed from a transmission gear system for transmitting rotation from the motor to the output shaft, and a control circuit portion for controlling the drive of the motor, the drive mechanism portion and the control circuit portion being disposed in a separated state due to an intermediate wall.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: November 6, 2007
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Tsutomu Takiguchi, Keiichi Tajima, Kazuma Mochizuki, Naoki Takii
  • Patent number: 7175319
    Abstract: A lamp body 20 includes a lamp unit 60 whose irradiation direction is changed according to a running state of a vehicle, a horizontal driving mechanism 90 for horizontally changing the irradiation direction, and a vertical driving mechanism 100 for vertically changing the irradiation direction. The horizontal driving mechanism and the vertical driving mechanism are integrated with each other, so that a lighting apparatus 10 can be mounted in a vehicle by using only a small mounting space. Moreover, the lighting apparatus 10 needs only small numbers of components and mounting man-hours.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 13, 2007
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
  • Patent number: 7121706
    Abstract: In an actuator of a vehicle headlamp unit for deflecting a direction or a range of illumination, a step-like rib for supporting a printed circuit board is formed at an inner side of a peripheral edge portion of a resin molded casing, and an opposed rib is formed at an outer side of this peripheral edge portion by a generally channel-shaped groove. A gear in a gear mechanism of the actuator is made of a resin having self-lubricating properties. The actuator includes a brushless motor, a yoke molded of a resin having a cylindrical container-shape. A gear is formed integrally on a central portion of an outer end surface of the yoke. A fixing means for fixing the stator coil of the brushless motor to a housing or the board has a positioning structure for positioning the stator coil.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: October 17, 2006
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Tsutomu Takiguchi, Keiichi Tajima, Atsushi Sugimoto, Kazuma Mochizuki
  • Publication number: 20050213339
    Abstract: An actuator has a housing that accommodates a motor, an output shaft for rotating a lamp unit that radiates light, a drive mechanism portion formed from a transmission gear system for transmitting rotation from the motor to the output shaft, and a control circuit portion for controlling the drive of the motor, the drive mechanism portion and the control circuit portion being disposed in a separated state due to an intermediate wall.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 29, 2005
    Inventors: Tsutomu Takiguchi, Keiichi Tajima, Kazuma Mochizuki, Naoki Takii
  • Publication number: 20050174786
    Abstract: A vehicular lamp has a lamp unit with a light source and controls light from the light source to obtain a predetermined light distribution, and an actuator that rotates the lamp unit using an output shaft to change a direction of illumination. A direction for drawing out an external cord that is connected to a connector, which is provided in the actuator for admitting electric power and/or a signal from outside, is set toward the vehicle front or vehicle side in the actuator.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 11, 2005
    Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
  • Publication number: 20050141234
    Abstract: A lamp body 20 includes a lamp unit 60 whose irradiation direction is changed according to a running state of a vehicle, a horizontal driving mechanism 90 for horizontally changing the irradiation direction, and a vertical driving mechanism 100 for vertically changing the irradiation direction. The horizontal driving mechanism and the vertical driving mechanism are integrated with each other, so that a lighting apparatus 10 can be mounted in a vehicle by using only a small mounting space. Moreover, the lighting apparatus 10 needs only small numbers of components and mounting man-hours.
    Type: Application
    Filed: December 15, 2004
    Publication date: June 30, 2005
    Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
  • Publication number: 20040208017
    Abstract: In an actuator of a vehicle headlamp unit for deflecting a direction or a range of illumination, a step-like rib for supporting a printed circuit board is formed at an inner side of a peripheral edge portion of a resin molded casing, and an opposed rib is formed at an outer side of this peripheral edge portion by a generally channel-shaped groove. A gear in a gear mechanism of the actuator is made of a resin having self-lubricating properties. The actuator includes a brushless motor, a yoke molded of a resin having a cylindrical container-shape. A gear is formed integrally on a central portion of an outer end surface of the yoke. A fixing means for fixing the stator coil of the brushless motor to a housing or the board has a positioning structure for positioning the stator coil.
    Type: Application
    Filed: January 15, 2004
    Publication date: October 21, 2004
    Inventors: Tsutomu Takiguchi, Keiichi Tajima, Atsushi Sugimoto, Kazuma Mochizuki