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).
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Publication number: 20240052988Abstract: 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: ApplicationFiled: December 9, 2021Publication date: February 15, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Kazuma MOCHIZUKI
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Publication number: 20240035639Abstract: 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: ApplicationFiled: December 9, 2021Publication date: February 1, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kazuma MOCHIZUKI, Atsushi SUGIMOTO, Tomoyuki OHNO, Takashi TERAYAMA, Toshiyuki TSUCHIYA, Atsushi UESUGI
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Publication number: 20230272898Abstract: 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: ApplicationFiled: June 23, 2021Publication date: August 31, 2023Inventors: Kazuma MOCHIZUKI, Teppei MURAMATSU
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Publication number: 20230098917Abstract: 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: ApplicationFiled: March 1, 2021Publication date: March 30, 2023Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kazuma MOCHIZUKI, Atsushi SUGIMOTO, Tomoyuki OHNO, Takashi TERAYAMA
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Patent number: 11092308Abstract: 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: GrantFiled: September 15, 2017Date of Patent: August 17, 2021Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Akinori Matsumoto, Kazuma Mochizuki, Yoshiyuki Nakanishi, Teppei Muramatsu
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Publication number: 20190211990Abstract: 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: ApplicationFiled: September 15, 2017Publication date: July 11, 2019Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Akinori MATSUMOTO, Kazuma MOCHIZUKI, Yoshiyuki NAKANISHI, Teppei MURAMATSU
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Patent number: 9981595Abstract: 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: GrantFiled: January 17, 2017Date of Patent: May 29, 2018Assignee: Koito Manufacturing Co., Ltd.Inventors: Yuji Sugiyama, Teppei Muramatsu, Yoshinao Daicho, Kazuma Mochizuki, Tetsuya Ishida
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Publication number: 20170210279Abstract: 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: ApplicationFiled: January 17, 2017Publication date: July 27, 2017Inventors: Yuji Sugiyama, Teppei Muramatsu, Yoshinao Daicho, Kazuma Mochizuki, Tetsuya Ishida
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Patent number: 9528677Abstract: 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: GrantFiled: January 27, 2014Date of Patent: December 27, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Kazuma Mochizuki
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Publication number: 20150362146Abstract: 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: ApplicationFiled: January 27, 2014Publication date: December 17, 2015Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Kazuma MOCHIZUKI
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Patent number: 7661856Abstract: 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: GrantFiled: December 4, 2007Date of Patent: February 16, 2010Assignee: Koito Manufacturing Co., Ltd.Inventors: Hiromi Nakamura, Kazuma Mochizuki, Yoshinao Daicho, Hiromi Umehara, Yasuo Teranishi
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Publication number: 20080158897Abstract: 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: ApplicationFiled: December 4, 2007Publication date: July 3, 2008Inventors: Hiromi Nakamura, Kazuma Mochizuki, Yoshinao Daicho, Hiromi Umehara, Yasuo Teranishi
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Patent number: 7387415Abstract: 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: GrantFiled: February 3, 2005Date of Patent: June 17, 2008Assignee: Koito Manufacturing Co., Ltd.Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
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Patent number: 7291951Abstract: 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: GrantFiled: March 8, 2005Date of Patent: November 6, 2007Assignee: Koito Manufacturing Co., Ltd.Inventors: Tsutomu Takiguchi, Keiichi Tajima, Kazuma Mochizuki, Naoki Takii
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Patent number: 7175319Abstract: 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: GrantFiled: December 15, 2004Date of Patent: February 13, 2007Assignee: Koito Manufacturing Co., Ltd.Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
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Patent number: 7121706Abstract: 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: GrantFiled: January 15, 2004Date of Patent: October 17, 2006Assignee: Koito Manufacturing Co., Ltd.Inventors: Tsutomu Takiguchi, Keiichi Tajima, Atsushi Sugimoto, Kazuma Mochizuki
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Publication number: 20050213339Abstract: 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: ApplicationFiled: March 8, 2005Publication date: September 29, 2005Inventors: Tsutomu Takiguchi, Keiichi Tajima, Kazuma Mochizuki, Naoki Takii
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Publication number: 20050174786Abstract: 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: ApplicationFiled: February 3, 2005Publication date: August 11, 2005Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
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Publication number: 20050141234Abstract: 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: ApplicationFiled: December 15, 2004Publication date: June 30, 2005Inventors: Keiichi Tajima, Tsutomu Takiguchi, Kazuma Mochizuki, Naoki Takii
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Publication number: 20040208017Abstract: 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: ApplicationFiled: January 15, 2004Publication date: October 21, 2004Inventors: Tsutomu Takiguchi, Keiichi Tajima, Atsushi Sugimoto, Kazuma Mochizuki