Patents by Inventor Tomokazu Shimoda
Tomokazu Shimoda 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: 20230176420Abstract: An object is to promote a reduction in thickness of a light guide plate and to provide a technique for suppressing brightness non-uniformity in the light guide plate. A light guide plate includes: a depressed portion provided on an opposite side of a light exit surface from which light is emitted; a first direction changing portion which is provided inside the depressed portion and above a light emitting element in a direction oriented toward the light exit surface, the light emitting element being provided on the opposite side of the light exit surface, and which changes a direction of travel of at least a part of light of the light emitting element; and a second direction changing portion which is provided above the light emitting element and higher than the light exit surface and which changes a direction of travel of at least a part of light of the light emitting element.Type: ApplicationFiled: January 31, 2023Publication date: June 8, 2023Applicant: NICHIA CORPORATIONInventors: Shotaro WATANABE, Naoki ISHIMI, Yoshinori ITO, Tomokazu SHIMODA
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Patent number: 11624865Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: GrantFiled: January 13, 2022Date of Patent: April 11, 2023Assignee: NICHIA CORPORATIONInventors: Shotaro Watanabe, Naoki Ishimi, Yoshinori Ito, Tomokazu Shimoda
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Patent number: 11535328Abstract: This measurement device for measuring the angular velocity or acceleration of a two-wheel vehicle, is provided with a main detection unit which detects the three-axis angular velocity or three-axis acceleration, a support unit which can support the main detection unit on the body of the two-wheel vehicle, and a correction unit which cancels the lean of the body to the left and right in the main detection unit.Type: GrantFiled: March 30, 2017Date of Patent: December 27, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.Inventors: Takeshi Korenaga, Tomokazu Shimoda, Kazuyoshi Kitajima, Hiromichi Nakamoto
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Publication number: 20220146734Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: ApplicationFiled: January 13, 2022Publication date: May 12, 2022Applicant: NICHIA CORPORATIONInventors: Shotaro WATANABE, Naoki ISHIMI, Yoshinori ITO, Tomokazu SHIMODA
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Patent number: 11256017Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: GrantFiled: October 22, 2020Date of Patent: February 22, 2022Assignee: NICHIA CORPORATIONInventors: Shotaro Watanabe, Naoki Ishimi, Yoshinori Ito, Tomokazu Shimoda
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Patent number: 11215634Abstract: This vehicle-mounted device is a vehicle-mounted device mounted on a vehicle that has a body and a steering unit supported on the body via a steering shaft, and includes a user interface, camera, or antenna attached to the steering unit; a first sensor unit that is attached to the body and detects a first angular velocity or a first acceleration as a first detection value; and a calculation device that performs calculation based on the first detection value and is connected to the user interface, camera, or antenna.Type: GrantFiled: March 29, 2017Date of Patent: January 4, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.Inventors: Takeshi Korenaga, Tomokazu Shimoda, Kazuyoshi Kitajima, Hiromichi Nakamoto
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Publication number: 20210041617Abstract: To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Applicant: NICHIA CORPORATIONInventors: Shotaro WATANABE, Naoki ISHIMI, Yoshinori ITO, Tomokazu SHIMODA
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Patent number: 10852467Abstract: Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: GrantFiled: December 5, 2017Date of Patent: December 1, 2020Assignee: NICHIA CORPORATIONInventors: Shotaro Watanabe, Naoki Ishimi, Yoshinori Ito, Tomokazu Shimoda
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Publication number: 20200049877Abstract: Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.Type: ApplicationFiled: December 5, 2017Publication date: February 13, 2020Applicants: OMRON Corporation, NICHIA CORPORATIONInventors: Shotaro WATANABE, Naoki ISHIMI, Yoshinori ITO, Tomokazu SHIMODA
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Publication number: 20200025794Abstract: This vehicle-mounted device is a vehicle-mounted device mounted on a vehicle that has a body and a steering unit supported on the body via a steering shaft, and includes a user interface, camera, or antenna attached to the steering unit; a first sensor unit that is attached to the body and detects a first angular velocity or a first acceleration as a first detection value; and a calculation device that performs calculation based on the first detection value and is connected to the user interface, camera, or antenna.Type: ApplicationFiled: March 29, 2017Publication date: January 23, 2020Inventors: Takeshi KORENAGA, Tomokazu SHIMODA, Kazuyoshi KITAJIMA, Hiromichi NAKAMOTO
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Publication number: 20200018600Abstract: This measurement device for measuring the angular velocity or acceleration of a two-wheel vehicle, is provided with a main detection unit which detects the three-axis angular velocity or three-axis acceleration, a support unit which can support the main detection unit on the body of the two-wheel vehicle, and a correction unit which cancels the lean of the body to the left and right in the main detection unit.Type: ApplicationFiled: March 30, 2017Publication date: January 16, 2020Applicant: MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.Inventors: Takeshi KORENAGA, Tomokazu SHIMODA, Kazuyoshi KITAJIMA, Hiromichi NAKAMOTO
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Publication number: 20190227382Abstract: A light guide plate includes: a depressed portion provided on an opposite side of a light exit surface from which light is emitted; a first direction changing portion which is provided inside the depressed portion and above a light emitting element in a direction oriented toward the light exit surface, the light emitting element being provided on the opposite side of the light exit surface, and which changes a direction of travel of at least a part of light of the light emitting element; and a second direction changing portion which is provided above the light emitting element and higher than the light exit surface and which changes a direction of travel of at least a part of light of the light emitting element.Type: ApplicationFiled: December 5, 2017Publication date: July 25, 2019Applicants: OMRON Corporation, NICHIA CORPORATIONInventors: Shotaro WATANABE, Naoki ISHIMI, Yoshinori ITO, Tomokazu SHIMODA
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Patent number: 8939633Abstract: An area light source device has a light guide plate including a light incident end face, a light guide plate main body thinner than a thickness of the light incident end face, and a light introducing unit formed in continuation with the light guide plate main body and so that thickness gradually becomes thinner from the light incident end face side towards the light guide plate main body side, a light source arranged at a position facing the light incident end face, a diffuser plate and one or more prism sheets arranged on a surface on a light emission side of the light guide plate main body, and a light shielding sheet arranged on an upper side of the diffuser plate and the prism sheet in a region excluding a light emitting region of the light guide plate main body.Type: GrantFiled: June 29, 2011Date of Patent: January 27, 2015Assignee: OMRON CorporationInventors: Mamoru Yabe, Tomokazu Shimoda, Yoshiyuki Masu
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Publication number: 20120002437Abstract: An area light source device has a light guide plate including a light incident end face, a light guide plate main body thinner than a thickness of the light incident end face, and a light introducing unit formed in continuation with the light guide plate main body and so that thickness gradually becomes thinner from the light incident end face side towards the light guide plate main body side, a light source arranged at a position facing the light incident end face, a diffuser plate and one or more prism sheets arranged on a surface on a light emission side of the light guide plate main body, and a light shielding sheet arranged on an upper side of the diffuser plate and the prism sheet in a region excluding a light emitting region of the light guide plate main body.Type: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicant: OMRON CORPORATIONInventors: Mamoru Yabe, Tomokazu Shimoda, Yoshiyuki Masu
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Patent number: 7123879Abstract: A toll charging system of this invention is implemented by a roadside apparatus, onboard device, portable telephone, and charging apparatus. The roadside apparatus is to detect a vehicle entering a charging area and transmit charging information to the vehicle. An onboard device and portable telephone are arranged in the vehicle. The charging information transmitted from the roadside apparatus is received by the onboard device. The onboard device generates vehicle identification information and outputs to the portable telephone instruction information instructing to transmit the charging information and vehicle identification information. On the instruction information, the portable telephone transmits the charging information and vehicle identification information. The charging apparatus receives the charging information and vehicle identification information, identifies the vehicle on the vehicle identification information, and executes charge processing for the vehicle.Type: GrantFiled: November 1, 2002Date of Patent: October 17, 2006Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshihiro Koketsu, Tetsuya Tomonaka, Tomokazu Shimoda, Ryosuke Okamoto, Yasuo Yoshikawa
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Publication number: 20030105662Abstract: A toll charging system of this invention is implemented by a roadside apparatus, onboard device, portable telephone, and charging apparatus. The roadside apparatus is to detect a vehicle entering a charging area and transmit charging information to the vehicle. An onboard device and portable telephone are arranged in the vehicle. The charging information transmitted from the roadside apparatus is received by the onboard device. The onboard device generates vehicle identification information and outputs to the portable telephone instruction information instructing to transmit the charging information and vehicle identification information. On the instruction information, the portable telephone transmits the charging information and vehicle identification information. The charging apparatus receives the charging information and vehicle identification information, identifies the vehicle on the vehicle identification information, and executes charge processing for the vehicle.Type: ApplicationFiled: November 1, 2002Publication date: June 5, 2003Inventors: Yoshihiro Koketsu, Tetsuya Tomonaka, Tomokazu Shimoda, Ryosuke Okamoto, Yasuo Yoshikawa