Patents by Inventor Shigeru Hirosawa
Shigeru Hirosawa 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: 8801198Abstract: The light source device includes: a first support that supports one of a light source and a collimator lens condensing; a second support that supports the other of the light source and the collimator lens; and a fixing member that fixes the first support to the second support. The first support includes a first protruding portion that protrudes from the first support toward the second support, the first protruding portion having a through hole therethrough. The second support includes a second protruding portion that protrudes from the second support toward the first support, the second protruding portion having: a receiving portion that receives the first protruding portion; and a receiving hole. A rod portion of a locking member is inserted into the through hole and the receiving hole, and a head portion of a locking member is sealed with a sealant.Type: GrantFiled: March 28, 2012Date of Patent: August 12, 2014Assignee: Casio Computer Co., Ltd.Inventor: Shigeru Hirosawa
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Patent number: 8342692Abstract: A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is divided into an outlet side spatial compartment which is positioned on an outlet side of the cooling fan and in which the light source unit is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. The outlet side spatial compartment is covered thereabove by an upper division board, above which a heat conductive sheet which is formed of an aluminum sheet is disposed. The heat conductive sheet is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet can be discharged.Type: GrantFiled: September 14, 2011Date of Patent: January 1, 2013Assignee: Casio Computer Co., Ltd.Inventors: Shigeru Hirosawa, Toshiyasu Tsubura
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Publication number: 20120249981Abstract: The light source device includes: a first support that supports one of a light source and a collimator lens condensing; a second support that supports the other of the light source and the collimator lens; and a fixing member that fixes the first support to the second support. The first support includes a first protruding portion that protrudes from the first support toward the second support, the first protruding portion having a through hole therethrough. The second support includes a second protruding portion that protrudes from the second support toward the first support, the second protruding portion having: a receiving portion that receives the first protruding portion; and a receiving hole. A rod portion of a locking member is inserted into the through hole and the receiving hole, and a head portion of a locking member is sealed with a sealant.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: CASIO COMPUTER CO., LTD.Inventor: Shigeru HIROSAWA
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Publication number: 20120002176Abstract: A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is divided into an outlet side spatial compartment which is positioned on an outlet side of the cooling fan and in which the light source unit is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. The outlet side spatial compartment is covered thereabove by an upper division board, above which a heat conductive sheet which is formed of an aluminum sheet is disposed. The heat conductive sheet is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet can be discharged.Type: ApplicationFiled: September 14, 2011Publication date: January 5, 2012Applicant: CASIO COMPUTER CO., LTD.Inventors: Shigeru HIROSAWA, Toshiyasu Tsubura
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Patent number: 8038301Abstract: A projector includes a light source unit, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system, a cooling fan, and a projector control unit. An interior of a projector casing is divided into an outlet side spatial compartment which is positioned on an outlet side of the cooling fan and in which the light source unit is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. The outlet side spatial compartment is covered thereabove by an upper division board, above which a heat conductive sheet which is formed of an aluminum sheet is disposed. The heat conductive sheet is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet can be discharged.Type: GrantFiled: July 1, 2009Date of Patent: October 18, 2011Assignee: Casio Computer Co., Ltd.Inventors: Shigeru Hirosawa, Toshiyasu Tsubura
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Publication number: 20100002199Abstract: According to the invention, there is provided a projector having a light source unit 63, a light source side optical system which includes a color wheel and a light guiding unit, a display device, a projection side optical system and a cooling fan and comprising a projector control unit, wherein an interior of a projector casing is divided into an outlet side spatial compartment 122 which is positioned on an outlet side of the cooling fan and in which the light source unit 63 is disposed and an inlet side spatial compartment which is positioned on an inlet side of the cooling fan. In addition, this outlet side spatial compartment 122 is covered thereabove by an upper division board 125 above which a heat conductive sheet 128 which is formed of an aluminum sheet is disposed. Further, this heat conductive sheet 128 is electrically connected to the projector casing, so that electricity charged in the heat conductive sheet 128 can be discharged.Type: ApplicationFiled: July 1, 2009Publication date: January 7, 2010Applicant: Casio Computer Co., Ltd.Inventors: Shigeru HIROSAWA, Toshiyasu TSUBURA
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Patent number: 7621643Abstract: A projection apparatus includes a projector including a cooling fan which cools the inside of a main unit through an air hole provided in the main unit and ceiling hanging hardware including a bracket having an external cooling fan which faces the air hole and whose air-flow direction coincides with that of the air hole. The projector is mounted on the ceiling hanging hardware while hanging from the ceiling hanging hardware.Type: GrantFiled: March 14, 2006Date of Patent: November 24, 2009Assignee: Casio Computer Co., Ltd.Inventors: Shigeru Hirosawa, Hideaki Masuo
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Publication number: 20060209267Abstract: A projection apparatus includes a projector including a cooling fan which cools the inside of a main unit through an air hole provided in the main unit and ceiling hanging hardware including a bracket having an external cooling fan which faces the air hole and whose air-flow direction coincides with that of the air hole. The projector is mounted on the ceiling hanging hardware while hanging from the ceiling hanging hardware.Type: ApplicationFiled: March 14, 2006Publication date: September 21, 2006Applicant: Casio Computer Co., Ltd.Inventors: Shigeru Hirosawa, Hideaki Masuo
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Patent number: 6463231Abstract: An upper body which can be shifted from and toward a lower body through a link mechanism is formed. A drum unit and a toner unit are arranged on the side of the upper body. The upper body is opened in the parallel with respect to the lower body with a predetermined interval, by the link mechanism including arms. In the state where the upper body is opened, the drum unit and the toner unit can be detached from and attached to the printer device in frontward and backward directions, by sliding a sliding member arranged on the upper body.Type: GrantFiled: December 20, 2000Date of Patent: October 8, 2002Assignees: Casio Computer Co., Ltd., Casio Electronics Manufacturing Co., Ltd.Inventors: Toshihiko Numazu, Shigeru Hirosawa, Tetsushi Kurokawa, Kazuhiro Kameyama, Noriki Ono, Yasuhiro Tsuyuki, Seiji Tachibana, Eiichi Nara
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Publication number: 20010008588Abstract: An upper body which can be shifted from and toward a lower body through a link mechanism is formed. A drum unit and a toner unit are arranged on the side of the upper body. The upper body is opened in parallel with respect to the lower body with a predetermined interval, by the link mechanism including arms. In the state where the upper body is opened, the drum unit and the toner unit can be detached from and attached to the printer device in frontward and backward directions, by sliding a sliding member arranged on the upper body.Type: ApplicationFiled: December 20, 2000Publication date: July 19, 2001Inventors: Toshihiko Numazu, Shigeru Hirosawa, Tetsushi Kurokawa, Kazuhiro Kameyama, Noriki Ono, Yasuhiro Tsuyuki, Seiji Tachibana, Eiichi Nara
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Patent number: 4628456Abstract: In a course guidance system for use in an automobile, for example, which includes an electronic display, a map, a direction sensor, a speed sensor and the like for deriving the present location of the car and plotting it on the display, the invention provides a course guidance system for a car which causes a linear and/or rotational movement of the driving locus displayed on the display when the map is changed or reset so that the present position can be easily located on the map.Type: GrantFiled: August 6, 1982Date of Patent: December 9, 1986Assignee: Alps Electric Co., Ltd.Inventors: Itaru Hatano, Kenji Takahashi, Shigeru Hirosawa, Mikio Kanda, Teruo Mimori, Toshio Sasaki, Tadashi Mukai, Tsuneo Takahashi, Shinichiro Yasui, Akira Ichikawa
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Patent number: 4532514Abstract: A course guidance system includes a direction sensor and a speed sensor both fitted to a moving body, a display mounted in the moving body and a map displayed in a manner corresponding to the display surface of the display and in which the present position of the moving body is derived by the direction sensor and the speed sensor and is plotted on the display in a manner corresponding to the map.Type: GrantFiled: August 13, 1982Date of Patent: July 30, 1985Assignee: Alps Electric Co., Ltd.Inventors: Itaru Hatano, Kenji Takahashi, Shigeru Hirosawa, Mikio Kanda, Shinichiro Yasui, Akira Ichikawa, Teruo Mimori, Toshio Sasaki, Tadashi Mukai, Thuneo Takahashi