Patents by Inventor Atsushi UESUGI
Atsushi UESUGI 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: 11974380Abstract: A scanning light source includes a semiconductor light source and a motor, and scans output light of the semiconductor light source in front of a lamp according to the movement of the motor. A constant current driver supplies a driving current ILED to the semiconductor light source according to a light source control signal. A light source control signal generator generates the light source control signal so as to obtain a light distribution pattern that corresponds to light distribution instruction data. A delay time measurement device measures the delay time required for the transition of the on/off states of the semiconductor light source from the change of the light source control signal.Type: GrantFiled: December 10, 2021Date of Patent: April 30, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kentarou Murakami, Atsushi Uesugi, Toshiyuki Tsuchiya
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Patent number: 11932595Abstract: Provided are vitamin D3 derivatives of formula (I), pharmaceutical compositions thereof, and pharmaceutical or medical uses thereof for treating metabolic disease, a liver disease, obesity, diabetes, cardiovascular disease, or cancer in a patient in need thereof.Type: GrantFiled: September 17, 2021Date of Patent: March 19, 2024Assignee: KYOTO UNIVERSITY, NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, TEIKYO UNIVERSITY and THE UNIVERSITY OF TOKYOInventors: Motonari Uesugi, Yasushi Takemoto, Kazuo Nagasawa, Atsushi Kittaka, Fumihiro Kawagoe, Hayato Nakagawa
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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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Patent number: 11872928Abstract: An automotive lamp includes a variable light distribution lamp and a controller. When a first light distribution pattern is to be changed to a second light distribution pattern, and when a difference in the number of shaded portions between the first light distribution pattern and the second light distribution pattern is one, the controller switches a control method for gradually changing the light distribution pattern according to a position relation between the shaded portions included in the first light distribution pattern and the shaded portions included in the second light distribution pattern.Type: GrantFiled: February 28, 2022Date of Patent: January 16, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi Uesugi, Kentarou Murakami, Yuki Kubo, Tatsuro Hayashi
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Patent number: 11396992Abstract: A vehicular lighting device includes a scanning light source that includes a semiconductor light source and a motor, and scans a region in front of the lighting device, with light emitted from the semiconductor light source, in accordance with motion of the motor, and a lighting circuit that changes the light quantity of the semiconductor light source in synchronization with the motion of the motor, during a normal lighting period, so as to obtain a predetermined light distribution pattern. The lighting circuit starts the motion of the motor, in response to a lighting command for headlight flashing during a stop period of the motor, and continuously lights the semiconductor light source asynchronously with the motion of the motor, during a start-up period that precedes the normal lighting period.Type: GrantFiled: May 21, 2020Date of Patent: July 26, 2022Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kentarou Murakami, Atsushi Uesugi
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Publication number: 20220176870Abstract: An automotive lamp includes a variable light distribution lamp and a controller. When a first light distribution pattern is to be changed to a second light distribution pattern, and when a difference in the number of shaded portions between the first light distribution pattern and the second light distribution pattern is one, the controller switches a control method for gradually changing the light distribution pattern according to a position relation between the shaded portions included in the first light distribution pattern and the shaded portions included in the second light distribution pattern.Type: ApplicationFiled: February 28, 2022Publication date: June 9, 2022Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi UESUGI, Kentarou MURAKAMI, Yuki KUBO, Tatsuro HAYASHI
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Publication number: 20220104330Abstract: A scanning light source includes a semiconductor light source and a motor, and scans output light of the semiconductor light source in front of a lamp according to the movement of the motor. A constant current driver supplies a driving current ILED to the semiconductor light source according to a light source control signal. A light source control signal generator generates the light source control signal so as to obtain a light distribution pattern that corresponds to light distribution instruction data. A delay time measurement device measures the delay time required for the transition of the on/off states of the semiconductor light source from the change of the light source control signal.Type: ApplicationFiled: December 10, 2021Publication date: March 31, 2022Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kentarou MURAKAMI, Atsushi UESUGI, Toshiyuki TSUCHIYA
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Publication number: 20200378577Abstract: A vehicular lighting device includes a scanning light source that includes a semiconductor light source and a motor, and scans a region in front of the lighting device, with light emitted from the semiconductor light source, in accordance with motion of the motor, and a lighting circuit that changes the light quantity of the semiconductor light source in synchronization with the motion of the motor, during a normal lighting period, so as to obtain a predetermined light distribution pattern. The lighting circuit starts the motion of the motor, in response to a lighting command for headlight flashing during a stop period of the motor, and continuously lights the semiconductor light source asynchronously with the motion of the motor, during a start-up period that precedes the normal lighting period.Type: ApplicationFiled: May 21, 2020Publication date: December 3, 2020Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kentarou MURAKAMI, Atsushi UESUGI
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Patent number: 10399481Abstract: A vehicle lamp system includes a high-beam lamp unit that can form a high-beam light-distribution pattern, a leveling mechanism that vertically adjusts an optical axis of the high-beam lamp unit, and a control unit that controls on/off of the high-beam lamp unit and controls the leveling mechanism. Upon the engine being started, the control unit controls the high-beam lamp unit to turn on for a predetermined period of time in a state in which the leveling unit adjusts the optical axis of the lamp unit to aim more vertically downward than in normal operation.Type: GrantFiled: July 28, 2016Date of Patent: September 3, 2019Assignees: Koito Manufacturing Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kiyotaka Mochizuki, Atsushi Uesugi, Hideki Uchida, Tatsuya Takagaki, Takatoshi Nakagawa
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Patent number: 10093222Abstract: A vehicle lamp system includes a lamp unit and a lamp control unit. The lamp unit includes a plurality of LEDs and forms a high-beam light-distribution pattern. The lamp control unit controls the on/off of each of the plurality of LEDs. The lamp control unit controls each LED in the following manner. Specifically, the luminance is gradually lowered in a first period when the luminance is lowered to a level at which the LED remains on at reduced luminance. The luminance is gradually lowered in a second period, which is shorter than the first period, when the luminance is lowered to a level at which the LED is off.Type: GrantFiled: July 20, 2016Date of Patent: October 9, 2018Assignees: KOITO MANUFACTURING CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Uesugi, Hideki Uchida, Kiyotaka Mochizuki, Tatsuya Takagaki, Takuya Murakami
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Patent number: 9656596Abstract: A vehicle lamp system includes a lamp unit, a control unit that controls a change in luminance of LEDs of the lamp unit, and a storage unit that stores information indicating a priority of an event. In a case in which a second event occurs while the luminance of the LEDs is being gradually changed to reach first luminance in a first period, the control unit gradually changes the luminance of the LEDs to reach second luminance in a second period if the priority of the second event is higher than the priority of the first event, and gradually changes the luminance of the LEDs to reach the second luminance irrespective of the second period if the priority of the second event is lower than the priority of the first event.Type: GrantFiled: July 20, 2016Date of Patent: May 23, 2017Assignees: Koito Manufacturing Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Atsushi Uesugi, Hideki Uchida, Tatsuya Takagaki, Takuya Murakami
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Publication number: 20170057402Abstract: A vehicle lamp system includes a lamp unit and a lamp control unit. The lamp unit includes a plurality of LEDs and forms a high-beam light-distribution pattern. The lamp control unit controls the on/off of each of the plurality of LEDs. The lamp control unit controls each LED in the following manner. Specifically, the luminance is gradually lowered in a first period when the luminance is lowered to a level at which the LED remains on at reduced luminance. The luminance is gradually lowered in a second period, which is shorter than the first period, when the luminance is lowered to a level at which the LED is off.Type: ApplicationFiled: July 20, 2016Publication date: March 2, 2017Inventors: Atsushi UESUGI, Hideki UCHIDA, Kiyotaka MOCHIZUKI, Tatsuya TAKAGAKI, Takuya MURAKAMI
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Publication number: 20170057403Abstract: A vehicle lamp system includes a lamp unit, a control unit that controls a change in luminance of LEDs of the lamp unit, and a storage unit that stores information indicating a priority of an event. In a case in which a second event occurs while the luminance of the LEDs is being gradually changed to reach first luminance in a first period, the control unit gradually changes the luminance of the LEDs to reach second luminance in a second period if the priority of the second event is higher than the priority of the first event, and gradually changes the luminance of the LEDs to reach the second luminance irrespective of the second period if the priority of the second event is lower than the priority of the first event.Type: ApplicationFiled: July 20, 2016Publication date: March 2, 2017Applicants: Koito Manufacturing Co., Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi UESUGI, Hideki UCHIDA, Tatsuya TAKAGAKI, Takuya MURAKAMI
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Publication number: 20170028903Abstract: A vehicle lamp system includes a high-beam lamp unit that can form a high-beam light-distribution pattern, a leveling mechanism that vertically adjusts an optical axis of the high-beam lamp unit, and a control unit that controls on/off of the high-beam lamp unit and controls the leveling mechanism. Upon the engine being started, the control unit controls the high-beam lamp unit to turn on for a predetermined period of time in a state in which the leveling unit adjusts the optical axis of the lamp unit to aim more vertically downward than in normal operation.Type: ApplicationFiled: July 28, 2016Publication date: February 2, 2017Inventors: Kiyotaka MOCHIZUKI, Atsushi UESUGI, Hideki UCHIDA, Tatsuya TAKAGAKI, Takatoshi NAKAGAWA