Patents by Inventor Kazunori Yoshioka
Kazunori Yoshioka 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: 20230251093Abstract: A ring laser gyroscope includes an optical block for generating laser beams that counter-propagate in a closed-loop type optical path, a dither mechanism for applying dither vibration for mitigating a lock-in phenomenon to the optical block, and a dither controller for controlling the dither vibration. The dither controller imparts randomness to the frequency of the angular velocity of the dither vibration.Type: ApplicationFiled: December 29, 2022Publication date: August 10, 2023Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yusuke GOCHO, Naoki YAMAMOTO, Kazunori YOSHIOKA, Kenji ABE
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Patent number: 11466987Abstract: The present invention reduces measurement time. A gyroscope of the present invention includes a planar ion trap part, a microwave irradiation part, a laser irradiation part and a measurement part. The planar ion trap part includes two rf electrodes and two DC electrode rows, and forms ion traps that trap one ion on a substrate, a normal direction of the surface of the planar ion trap part corresponds to a z direction. The rf electrodes are disposed in the x direction on the substrate at a predetermined interval. The DC electrode rows are disposed in the x direction on the substrate so as to sandwich the two rf electrodes. The DC electrode rows each include at least five DC electrodes in the x direction. The trapped ions are spaced so as not to interfere with each other. The microwave irradiation part irradiates the ions with ?/2 microwave pulses.Type: GrantFiled: July 25, 2018Date of Patent: October 11, 2022Assignees: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio Kozuma, Ryotaro Inoue, Takashi Mukaiyama, Utako Tanaka, Seiichi Morimoto, Kazunori Yoshioka, Atsushi Tanaka, Yuichiro Kamino
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Publication number: 20200333139Abstract: A gyroscope of the present invention includes a moving standing light wave generator to generate three moving standing light waves, an atomic beam source to continuously generate an atomic beam in which individual atoms are in the same state, an interference device that exerts a Sagnac effect through interaction between the atomic beam and the three moving standing light waves and a monitor to detect angular velocity or acceleration by monitoring an atomic beam from the interference device. The atoms are alkaline earth metal atoms, alkaline earth-like metal atoms, stable isotopes of alkaline earth metal atoms or stable isotopes of alkaline earth-like metal atoms.Type: ApplicationFiled: July 25, 2018Publication date: October 22, 2020Applicants: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio KOZUMA, Ryotaro INOUE, Takashi MUKAIYAMA, Seiichi MORIMOTO, Kazunori YOSHIOKA, Atsushi TANAKA, Yuichiro KAMINO
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Publication number: 20200318968Abstract: A gyroscope of the present invention includes a moving standing light wave generator to generate three moving standing light waves, an atomic beam source to continuously generate an atomic beam in which individual atoms are in the same state, an interference device that exerts a Sagnac effect through interaction between the atomic beam and the three moving standing light waves, and a monitor to detect angular velocity or acceleration by monitoring an atomic beam from the interference device. Each moving standing light wave satisfies an n-th order Bragg condition, where n is a positive integer of 2 or more.Type: ApplicationFiled: July 25, 2018Publication date: October 8, 2020Applicants: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio KOZUMA, Ryotaro INOUE, Takashi MUKAIYAMA, Seiichi MORIMOTO, Kazunori YOSHIOKA, Atsushi TANAKA, Yuichiro KAMINO
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Publication number: 20200300630Abstract: The present invention reduces measurement time. A gyroscope of the present invention includes a planar ion trap part, a microwave irradiation part, a laser irradiation part and a measurement part. The planar ion trap part includes two rf electrodes and two DC electrode rows, and forms ion traps that trap one ion on a substrate, a normal direction of the surface of the planar ion trap part corresponds to a z direction. The rf electrodes are disposed in the x direction on the substrate at a predetermined interval. The DC electrode rows are disposed in the x direction on the substrate so as to sandwich the two rf electrodes. The DC electrode rows each include at least five DC electrodes in the x direction. The trapped ions are spaced so as not to interfere with each other. The microwave irradiation part irradiates the ions with ?/2 microwave pulses.Type: ApplicationFiled: July 25, 2018Publication date: September 24, 2020Applicants: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio KOZUMA, Ryotaro INOUE, Takashi MUKAIYAMA, Utako TANAKA, Seiichi MORIMOTO, Kazunori YOSHIOKA, Atsushi TANAKA, Yuichiro KAMINO
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Publication number: 20200256677Abstract: A gyroscope includes an atomic beam source to generate an atomic beam in which individual atoms are in the same state, a moving standing light wave generator to generate M moving standing light waves, an interference device to obtain an atomic beam resulting from the interaction between the atomic beam and the M moving standing light waves, a monitor to detect angular velocity by monitoring the atomic beam from the interference device and an accelerometer. The accelerometer acquires information on acceleration applied to the gyroscope and the moving standing light wave generator adjusts the drift velocity of at least M?1 moving standing light waves among the M moving standing light waves in response to the acceleration information.Type: ApplicationFiled: July 25, 2018Publication date: August 13, 2020Applicants: TOKYO INSTITUTE OF TECHNOLOGY, OSAKA UNIVERSITY, JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED, MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio KOZUMA, Ryotaro INOUE, Takashi MUKAIYAMA, Seiichi MORIMOTO, Kazunori YOSHIOKA, Atsushi TANAKA, Yuichiro KAMINO
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Patent number: 8994952Abstract: A ring laser gyro with no piezoelectric elements for dither detection includes a laser beam receiving unit for receiving a laser beam taken out of a gyro block, a laser beam intensity measuring unit for measuring the intensity of the laser beam received by the laser beam receiving unit, a dither mechanism, a dither control unit for driving the dither mechanism, and a gyro case housing the gyro block, wherein the laser beam receiving unit is secured to the gyro case, the laser beam receiving unit has a laser beam receiving surface for receiving the laser beam from the gyro block to detect a laser beam receiving position on the laser beam receiving surface and output positional information indicating the laser beam receiving position. The dither control unit drives the dither mechanism on the basis of information indicating the amplitude of the laser beam receiving position obtained from the positional information.Type: GrantFiled: August 15, 2013Date of Patent: March 31, 2015Assignee: Japan Aviation Electronics Industry, LimitedInventors: Kei Iizuka, Kazunori Yoshioka, Naoki Yamamoto
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Publication number: 20140300899Abstract: A ring laser gyro with no piezoelectric elements for dither detection includes a laser beam receiving unit for receiving a laser beam taken out of a gyro block, a laser beam intensity measuring unit for measuring the intensity of the laser beam received by the laser beam receiving unit, a dither mechanism, a dither control unit for driving the dither mechanism, and a gyro case housing the gyro block, wherein the laser beam receiving unit is secured to the gyro case, the laser beam receiving unit has a laser beam receiving surface for receiving the laser beam from the gyro block to detect a laser beam receiving position on the laser beam receiving surface and output positional information indicating the laser beam receiving position. The dither control unit drives the dither mechanism on the basis of information indicating the amplitude of the laser beam receiving position obtained from the positional information.Type: ApplicationFiled: August 15, 2013Publication date: October 9, 2014Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Kei IIZUKA, Kazunori YOSHIOKA, Naoki YAMAMOTO
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Patent number: 6796559Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.Type: GrantFiled: February 21, 2003Date of Patent: September 28, 2004Assignees: Konica Corporation, Nisca CorporationInventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
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Patent number: 6633763Abstract: A navigation device comprises a map database (12) for storing map data, and a telephone number database (13) for storing a plurality of locations and their telephone numbers, latitudes, and longitudes. The navigation device further includes an input unit (1) for allowing a user to select a desired location from among the plurality of locations stored in the telephone number database (13) and set the desired location to his or her destination, and to set a predetermined distance, and an automatically dialing unit (15) for automatically dialing a telephone number corresponding to the destination, which is stored in the telephone number database, when the distance from a current position to the destination is less than or equal to the predetermined distance while the navigation device guides the user to the destination.Type: GrantFiled: July 27, 2001Date of Patent: October 14, 2003Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kazunori Yoshioka
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Publication number: 20030160386Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.Type: ApplicationFiled: February 21, 2003Publication date: August 28, 2003Applicant: Konica CorporationInventors: Kazuhiro Hirota, HIroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
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Patent number: 6585258Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide, a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.Type: GrantFiled: December 12, 2000Date of Patent: July 1, 2003Assignees: Konica Corporation, Nisca CorporationInventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
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Patent number: 6385465Abstract: A navigation device comprises a map database (12) for storing map data, and a telephone number database (13) for storing a plurality of locations and their telephone numbers, latitudes, and longitudes. The navigation device further includes an input unit (1) for allowing a user to select a desired location from among the plurality of locations stored in the telephone number database (13) and set the desired location to his or her destination, and to set a predetermined distance, and an automatically dialing unit (15) for automatically dialing a telephone number corresponding to the destination, which is stored in the telephone number database, when the distance from a current position to the destination is less than or equal to the predetermined distance while the navigation device guides the user to the destination.Type: GrantFiled: October 28, 1998Date of Patent: May 7, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kazunori Yoshioka
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Patent number: 6351705Abstract: A navigation system having a plurality of displays for displaying, for example, output images of a navigation system, output images of a television system, and output texts of a multiplex FM character broadcasting. Such a navigation system in the prior art has drawbacks that a large amount of calculations is required for detecting whether the vehicle is moving or not and for imposing restrictions on the sort of data to be displayed in the second display, installed at a position where the driver can see it.Type: GrantFiled: August 4, 1999Date of Patent: February 26, 2002Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kazunori Yoshioka
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Publication number: 20010046884Abstract: A navigation device comprises a map database (12) for storing map data, and a telephone number database (13) for storing a plurality of locations and their telephone numbers, latitudes, and longitudes. The navigation device further includes an input unit (1) for allowing a user to select a desired location from among the plurality of locations stored in the telephone number database (13) and set the desired location to his or her destination, and to set a predetermined distance, and an automatically dialing unit (15) for automatically dialing a telephone number corresponding to the destination, which is stored in the telephone number database, when the distance from a current position to the destination is less than or equal to the predetermined distance while the navigation device guides the user to the destination.Type: ApplicationFiled: July 27, 2001Publication date: November 29, 2001Applicant: Mitsubishi Denki Kabushiki KaishaInventor: Kazunori Yoshioka
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Patent number: 6145834Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.Type: GrantFiled: June 10, 1998Date of Patent: November 14, 2000Assignees: Konica Corporation, Nisca CorporationInventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka