Patents by Inventor Shuhki Ohtani
Shuhki Ohtani 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: 8139466Abstract: A recording/reproducing device (A) includes: a first device (31) for performing recording and/or reproduction of data with respect to a first detachable storage medium; a second device (35) for performing recording and/or reproduction of data with respect to a second detachable storage medium; a first display section (41) for notifying a working state of the first device (31); and a second display section (47) for notifying a working state of the second device (35). A relative positions of the first device (31) to the second device (35) is the same as a relative position of the first display section (41) to the second display section (47).Type: GrantFiled: September 5, 2005Date of Patent: March 20, 2012Assignee: Sharp Kabushiki KaishaInventors: Makoto Hashimoto, Hiroshi Minematsu, Akihisa Matsumoto, Shohji Takada, Kimiyoshi Itoh, Harumi Sakamoto, Noriaki Itai, Seiji Usami, Yutaka Itoh, Shuhki Ohtani, Hiroshi Mikuni
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Patent number: 7936136Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: GrantFiled: October 30, 2007Date of Patent: May 3, 2011Assignee: Sharp Kabushiki KaishaInventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Patent number: 7791286Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: GrantFiled: September 14, 2007Date of Patent: September 7, 2010Assignee: Sharp Kabushiki KaishaInventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Patent number: 7786681Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: GrantFiled: September 14, 2007Date of Patent: August 31, 2010Assignee: Sharp Kabushiki KaishaInventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Patent number: 7777431Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: GrantFiled: July 4, 2003Date of Patent: August 17, 2010Assignee: Sharp Kabushiki KaishaInventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Publication number: 20080075415Abstract: A recording/reproducing device (A) includes: a first device (31) for performing recording and/or reproduction of data with respect to a first detachable storage medium; a second device (35) for performing recording and/or reproduction of data with respect to a second detachable storage medium; a first display section (41) for notifying a working state of the first device (31); and a second display section (47) for notifying a working state of the second device (35). A relative positions of the first device (31) to the second device (35) is the same as a relative position of the first display section (41) to the second display section (47).Type: ApplicationFiled: September 5, 2005Publication date: March 27, 2008Applicant: Sharp Kabushiki KaishaInventors: Makoto Hashimoto, Hiroshi Minematsu, Akihisa Matsumoto, Shohji Takada, Kimiyoshi Itoh, Karumi Sakamoto, Noriaki Itai, Seiji Usami, Yutaka Itoh, Shuhki Ohtani, Hiroshi Mikuni, Hiroshi Mikuni
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Publication number: 20080067958Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: ApplicationFiled: October 30, 2007Publication date: March 20, 2008Inventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Publication number: 20080042967Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: ApplicationFiled: September 14, 2007Publication date: February 21, 2008Inventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Publication number: 20080012500Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: ApplicationFiled: September 14, 2007Publication date: January 17, 2008Inventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Patent number: 7184566Abstract: A bass reflex type speaker apparatus comprises a speaker box having an opening portion on a front surface, a speaker unit (1) mounted within the speaker box in conformity with the opening portion, and a tubular duct (7) that externally radiates sound from a rear surface of the speaker unit (1) disposed within the speaker box through phase inversion. The duct (7) has on the same plane one or a plurality of bent portions bent in substantially dogleg form and linear portions extending at both ends of the bent portion, the duct being disposed in parallel with the front surface of the speaker box. At least the longest linear portion of the linear portions is disposed tilted relative to wall surfaces except for the front and rear surfaces of the speaker box. It is thus possible to reduce the size, namely height, width and depth, of the speaker box incorporating the duct.Type: GrantFiled: March 4, 2003Date of Patent: February 27, 2007Assignee: Sharp Kabushiki KaishaInventors: Ichiro Tamura, Tadashi Murayama, Kazuhiro Katayama, Shuhki Ohtani
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Publication number: 20060120109Abstract: A driving apparatus and a driving method are disclosed that are capable of uniformly lighting each entire fluorescent tube irrespective of the length or number of fluorescent tubes when simultaneously driving a plurality of fluorescent tubes in a fluorescent tube lighting apparatus. When two inverter circuits having respective transformers are provided at both ends of a fluorescent tube to light the fluorescent tube by push-pull driving, feedback windings of transformers not used in self-excited oscillation of each inverter circuit are connected together, with the transformer connection that connects together the feedback windings being either in-phase or in opposite phase, and the method of connection for fluorescent tubes connecting to secondary windings of each transformer can be changed in accordance with that connection method.Type: ApplicationFiled: July 4, 2003Publication date: June 8, 2006Inventors: Yutaka Inoue, Masaki Shimizu, Shuhki Ohtani
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Publication number: 20050117768Abstract: A bass reflex type speaker apparatus comprises a speaker box having an opening portion on a front surface, a speaker unit (1) mounted within the speaker box in conformity with the opening portion, and a tubular duct (7) that externally radiates sound from a rear surface of the speaker unit (1) disposed within the speaker box through phase inversion. The duct (7) has on the same plane one or a plurality of bent portions bent in substantially dogleg form and linear portions extending at both ends of the bent portion, the duct being disposed in parallel with the front surface of the speaker box. At least the longest linear portion of the linear portions is disposed tilted relative to wall surfaces except for the front and rear surfaces of the speaker box. It is thus possible to reduce the size, namely height, width and depth, of the speaker box incorporating the duct.Type: ApplicationFiled: March 4, 2003Publication date: June 2, 2005Applicant: Sharp Kabushikl KaishaInventors: Ichiro Tamura, Tadashi Murayama, Kazuhiro Katayama, Shuhki Ohtani