Patents by Inventor Hitoshi Kawahara
Hitoshi Kawahara 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: 20240111332Abstract: A head mounted display includes a head mounted device configured to be mounted on a head of an observer, and a display device configured to be supported by the head mounted device so as to be capable of being flipped up, wherein the display device includes an observation optical system that guides light to an eye of the observer, and a detection unit that detects proximity of the display device to a face of the observer, and wherein the detection unit is disposed so that a center line of a detection range of the detection unit is directed downward with respect to an optical axis direction of the observation optical system.Type: ApplicationFiled: September 26, 2023Publication date: April 4, 2024Inventor: HITOSHI KAWAHARA
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Publication number: 20230100190Abstract: An image display device, having an optical observation system configured to guide light to eyes of an observer using the image display device, includes a housing, a mounting unit, and a light-shielding member. The housing is provided with the optical observation system. The mounting unit mounts the housing to a head of the observer. The light-shielding member is provided on the housing and blocks external light to be incident between the optical observation system and a face of the observer using the image display device. The light-shielding member is pivotable in a direction away from the face of the observer about a pivot axis extending in an up-down direction and in a direction approaching the face of the observer about the pivot axis.Type: ApplicationFiled: September 27, 2022Publication date: March 30, 2023Inventor: Hitoshi Kawahara
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Patent number: 11323597Abstract: A display apparatus includes a display unit, a display unit cover configured to hold the display unit, a first plate configured to move integrally with the display unit cover, a second plate, a first shaft provided on the second plate and rotatably supporting the first plate, a third plate, a second shaft provided on the third plate, parallel to the first shaft, and rotatably supporting the second plate, a third shaft orthogonal to the second shaft and rotatably supporting the third plate, and a first guide member provided on the third plate and configured to restrict operation areas of the first plate and the second plate. Where the first shaft is closest to the third plate within the operation area of the second plate around the second shaft, the first guide member is closer to the display unit cover than the third plate.Type: GrantFiled: April 13, 2020Date of Patent: May 3, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Hitoshi Kawahara
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Patent number: 11022862Abstract: An imaging system includes a movable body and a fixed body. In movable body, an imaging device capable of changing an imaging direction is provided. In the fixed body, a circular rail member is provided. The fixed body supports the rail member to be rotatable along the rail member.Type: GrantFiled: August 6, 2019Date of Patent: June 1, 2021Assignee: Canon Kabushiki KaishaInventors: Gen Kitamura, Honkai Tomimoto, Hirotsugu Noda, Hitoshi Kawahara, Tatsuya Otoshi
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Publication number: 20200336640Abstract: A display apparatus includes a display unit, a display unit cover configured to hold the display unit, a first plate configured to move integrally with the display unit cover, a second plate, a first shaft provided on the second plate and rotatably supporting the first plate, a third plate, a second shaft provided on the third plate, parallel to the first shaft, and rotatably supporting the second plate, a third shaft orthogonal to the second shaft and rotatably supporting the third plate, and a first guide member provided on the third plate and configured to restrict operation areas of the first plate and the second plate. Where the first shaft is closest to the third plate within the operation area of the second plate around the second shaft, the first guide member is closer to the display unit cover than the third plate.Type: ApplicationFiled: April 13, 2020Publication date: October 22, 2020Inventor: Hitoshi Kawahara
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Publication number: 20200064714Abstract: An imaging system includes a movable body and a fixed body. In movable body, an imaging device capable of changing an imaging direction is provided. In the fixed body, a circular rail member is provided. The fixed body supports the rail member to be rotatable along the rail member.Type: ApplicationFiled: August 6, 2019Publication date: February 27, 2020Inventors: Gen Kitamura, Honkai Tomimoto, Hirotsugu Noda, Hitoshi Kawahara, Tatsuya Otoshi
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Patent number: 9706097Abstract: An image pickup apparatus that comprises a mechanism that causes a light emitting unit for illuminating to move from a storage position at which the light emitting unit is housed in the apparatus body to a light emission enabled position at which the light emitting unit protrudes outside of the apparatus body is provided. The image pickup apparatus comprises a holding member that holds the light emitting unit; a trigger coil that is provided at the light emitting unit; and a magnetic member that is held by the holding member. The magnetic member is arranged adjacent to the trigger coil so that a direction of a magnetic field of the magnetic member is not a direction opposite to a direction generated in the trigger coil by a first wave of a voltage input to the trigger coil.Type: GrantFiled: November 25, 2015Date of Patent: July 11, 2017Assignee: Canon Kabushiki KaishaInventor: Hitoshi Kawahara
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Publication number: 20160156821Abstract: An image pickup apparatus that comprises a mechanism that causes a light emitting unit for illuminating to move from a storage position at which the light emitting unit is housed in the apparatus body to a light emission enabled position at which the light emitting unit protrudes outside of the apparatus body is provided. The image pickup apparatus comprises a holding member that holds the light emitting unit; a trigger coil that is provided at the light emitting unit; and a magnetic member that is held by the holding member. The magnetic member is arranged adjacent to the trigger coil so that a direction of a magnetic field of the magnetic member is not a direction opposite to a direction generated in the trigger coil by a first wave of a voltage input to the trigger coil.Type: ApplicationFiled: November 25, 2015Publication date: June 2, 2016Inventor: Hitoshi Kawahara
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Publication number: 20100010787Abstract: A platelet thrombus formation simulator, said simulator equipped with the following means: (a) a means that selects, from previously stored equations, an equation for the computation of adhesion force according to parallel activation grade; (b) a means that calculates the platelet adhesion force based on the equation depending on the activation grade of each platelet; and (c) a means that outputs the coagulation condition of platelets based on the calculated adhesion force of each platelet.Type: ApplicationFiled: September 14, 2007Publication date: January 14, 2010Inventors: Makoto Suematsu, Hitoshi Kawahara
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Publication number: 20080245935Abstract: Disclosed herein is a connection structure including, a first spherical member, a second spherical member, first and second clamping plates, a single external thread member, and first, second, third and forth clamping recessed portions.Type: ApplicationFiled: October 1, 2007Publication date: October 9, 2008Applicant: Sony CorporationInventors: Hideo KANEDA, Yoshio Chiba, Naotaka Kishi, Hitoshi Kawahara
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Patent number: 4301227Abstract: An electrophotographic developer containing a carrier, a resinous, waxy or varnish compound and as a color component, a phosphotungstomolybdic acid lake of a mixture of an indolenine dye of the formula (I): ##STR1## wherein A is a benzene or naphthalene nucleus, R.sub.1 is a C.sub.1 -C.sub.4 alkyl group R.sub.2 and R.sub.3 are respectively a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, R.sub.4 and R.sub.5 are respectively a hydrogen atom, a C.sub.1 -C.sub.4 alkyl, .beta.-hydroxyethyl, .beta.-chloroethyl, .beta.-cyanoethyl, aralkyl, cycloalkyl, phenyl, or substituted phenyl. Y is a hydrogen or halogen atom, or a nitro, alkyl, alkoxy, carbalkoxy or acetamido group, and X.sup.- is a colorless anion, with a xanthene dye of the formula (II): ##STR2## wherein R.sub.6, R.sub.7, R.sub.10, R.sub.11 and R.sub.12 are respectively a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, R.sub.8 and R.sub.9 are respectively a C.sub.1 -C.sub.4 alkyl group, and Y.sup.- is a colorless anion.Type: GrantFiled: June 24, 1976Date of Patent: November 17, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Seiji Hotta, Hitoshi Kawahara, Minoru Hatori, Fumio Koseki