Patents by Inventor Kazuhiro Kato
Kazuhiro Kato 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: 10468870Abstract: An electrostatic protection circuit includes a trigger circuit that is connected between a first power line and a second power line. The trigger circuit is configured to output a trigger signal in response to a voltage fluctuation between the first and second power lines. A shunt element has a main current path between the first power line and the second power line and is controllable to be on and off using the trigger signal. A control circuit is configured to supply a control signal to turn off the shunt element when a current value of the main current path of the shunt element exceeds a predetermined threshold value.Type: GrantFiled: June 22, 2018Date of Patent: November 5, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Kazuhiro Kato
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Publication number: 20190252086Abstract: The object of the invention is to obtain a solar radiation shielding member that has a good visible light transmittance and shows no redness when viewed from the front and when obliquely viewed, without impairing the solar radiation transmittance. A solar radiation shielding member, wherein a first dielectric film, a first metal film, a second dielectric film, a second metal film, a third dielectric film, a third metal film, and a fourth dielectric film are stacked on a transparent substrate; the first dielectric film comprises at least two dielectric layers containing a layer having a refractive index of 2.4 or greater, and the first dielectric film as a whole has a refractive index in a range of 1.8-2.Type: ApplicationFiled: July 24, 2017Publication date: August 15, 2019Inventors: Kazuhiro KATO, Yuki HORIE
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Publication number: 20180342865Abstract: An electrostatic protection circuit includes a first power line and a second power line. The electrostatic protection circuit includes a trigger circuit connected between the first and second power lines and outputs a trigger signal in response to a fluctuation of a voltage difference between the first and second power lines. The electrostatic protection circuit further includes a shunt element that is controlled by the trigger signal, and includes a main current pathway connected between the first and second power lines. The electrostatic protection circuit further includes a control circuit that is connected between the first and second power lines and supplies a control signal for increasing the conductivity of the shunt element when the voltage difference between the first power line and the second power line exceeds a predetermined voltage.Type: ApplicationFiled: August 7, 2018Publication date: November 29, 2018Inventors: Satoshi HARUKI, Kazuhiro KATO
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Publication number: 20180301889Abstract: An electrostatic protection circuit includes a trigger circuit that is connected between a first power line and a second power line. The trigger circuit is configured to output a trigger signal in response to a voltage fluctuation between the first and second power lines. A shunt element has a main current path between the first power line and the second power line and is controllable to be on and off using the trigger signal. A control circuit is configured to supply a control signal to turn off the shunt element when a current value of the main current path of the shunt element exceeds a predetermined threshold value.Type: ApplicationFiled: June 22, 2018Publication date: October 18, 2018Inventor: Kazuhiro KATO
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Patent number: 10070703Abstract: [Object] [Solving Means] An attachable and detachable structure includes a superficial part and a base. The superficial part has an attachment part and a non-attachment part. The base supports the superficial part and moves one of the attachment part and the non-attachment part forward or backward to the other.Type: GrantFiled: February 24, 2015Date of Patent: September 11, 2018Assignee: Sony CorporationInventors: Tomomasa Mizuno, Hidenori Ishibashi, Fujio Kobayashi, Kazuhiro Kato
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Patent number: 10069297Abstract: An electrostatic protection circuit includes a first power line and a second power line. The electrostatic protection circuit includes a trigger circuit connected between the first and second power lines and outputs a trigger signal in response to a fluctuation of a voltage difference between the first and second power lines. The electrostatic protection circuit further includes a shunt element that is controlled by the trigger signal, and includes a main current pathway connected between the first and second power lines. The electrostatic protection circuit further includes a control circuit that is connected between the first and second power lines and supplies a control signal for increasing the conductivity of the shunt element when the voltage difference between the first power line and the second power line exceeds a predetermined voltage.Type: GrantFiled: February 10, 2016Date of Patent: September 4, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Haruki, Kazuhiro Kato
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Patent number: 10033177Abstract: An electrostatic protection circuit includes a trigger circuit that is connected between a first power line and a second power line. The trigger circuit is configured to output a trigger signal in response to a voltage fluctuation between the first and second power lines. A shunt element has a main current path between the first power line and the second power line and is controllable to be on and off using the trigger signal. A control circuit is configured to supply a control signal to turn off the shunt element when a current value of the main current path of the shunt element exceeds a predetermined threshold value.Type: GrantFiled: February 9, 2016Date of Patent: July 24, 2018Assignee: Kabushiki Kaisha ToshibaInventor: Kazuhiro Kato
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Patent number: 9799242Abstract: An information processing apparatus including a display portion; a backlight unit configured to irradiate light from a rear face side of the display portion; a rear frame having height equivalent to at least a thickness of the backlight unit, and configured to protect the backlight unit; and an outer circumference casing attached to the rear frame, or formed integrally with the rear frame, and provided along an outer circumference of the display portion.Type: GrantFiled: February 5, 2013Date of Patent: October 24, 2017Assignee: SONY MOBILE COMMUNICATIONS INC.Inventors: Kouichiro Takashima, Kazuhiro Kato, Takao Yagi
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Publication number: 20170209329Abstract: The movable apparatus includes a holding body and a movable body. The holding body includes a first opening portion and an internal space, and is constituted of one part. The movable body includes an internal body and a first movable shaft portion. The internal body is stored in the internal space of the holding body, and has such a size that the internal body is prevented from exiting the first opening portion even if the first opening portion is elastically deformed. The first movable shaft portion is capable of being moved integrally with the internal body, and is exposed to outside of the holding body from inside of the holding body through the first opening portion.Type: ApplicationFiled: June 9, 2015Publication date: July 27, 2017Applicant: Sony CorporationInventors: Hidenori ISHIBASHI, Fujio KOBAYASHI, Tomomasa MIZUNO, Kazuhiro KATO
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Patent number: 9678533Abstract: An information processing apparatus including a display portion, and a casing including an inner circumference wall portion that faces a side wall of the display portion and an inner circumference bottom plane portion that faces a rear surface of the display portion. The display portion is secured to the inner circumference wall portion and the inner circumference bottom plane portion of the casing with an adhesive agent.Type: GrantFiled: January 28, 2013Date of Patent: June 13, 2017Assignees: Sony Corporation, Sony Mobile Communications Inc.Inventors: Kouichiro Takashima, Kazuhiro Kato, Takao Yagi
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Patent number: 9639148Abstract: A terminal apparatus includes a display module including a window glass, a touch panel, and a display panel; a display holding frame that secures the display module, the display holding frame having a screw accepting part on a rear surface which is opposite to the display panel; a cabinet case, which encloses the display holding frame, and which has a screw hole corresponding to the screw accepting part of the display holding frame; and a bolt or screw inserted into the screw accepting part of the display holding frame through the screw hole in the cabinet case.Type: GrantFiled: January 24, 2013Date of Patent: May 2, 2017Assignees: SONY CORPORATION, SONY MOBILE COMMUNICATIONS INC.Inventors: Kazuhiro Kato, Kouichiro Takashima, Koji Endo, Hiroshi Kubo
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Publication number: 20170042295Abstract: [Solving Means] An attachable and detachable structure includes a superficial part and a base. The superficial part has an attachment part and a non-attachment part. The base supports the superficial part and moves one of the attachment part and the non-attachment part forward or backward to the other.Type: ApplicationFiled: February 24, 2015Publication date: February 16, 2017Applicant: Sony CorporationInventors: Tomomasa Mizuno, Hidenori Ishibashi, Fujio Kobayashi, Kazuhiro Kato
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Publication number: 20160268798Abstract: An electrostatic protection circuit includes a first power line and a second power line. The electrostatic protection circuit includes a trigger circuit connected between the first and second power lines and outputs a trigger signal in response to a fluctuation of a voltage difference between the first and second power lines. The electrostatic protection circuit further includes a shunt element that is controlled by the trigger signal, and includes a main current pathway connected between the first and second power lines. The electrostatic protection circuit further includes a control circuit that is connected between the first and second power lines and supplies a control signal for increasing the conductivity of the shunt element when the voltage difference between the first power line and the second power line exceeds a predetermined voltage.Type: ApplicationFiled: February 10, 2016Publication date: September 15, 2016Inventors: Satoshi HARUKI, Kazuhiro KATO
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Publication number: 20160261105Abstract: An electrostatic protection circuit includes a trigger circuit that is connected between a first power line and a second power line. The trigger circuit is configured to output a trigger signal in response to a voltage fluctuation between the first and second power lines. A shunt element has a main current path between the first power line and the second power line and is controllable to be on and off using the trigger signal. A control circuit is configured to supply a control signal to turn off the shunt element when a current value of the main current path of the shunt element exceeds a predetermined threshold value.Type: ApplicationFiled: February 9, 2016Publication date: September 8, 2016Inventor: Kazuhiro KATO
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Patent number: 9263884Abstract: An electrostatic protection circuit includes a trigger circuit connected between a first and second power source line. The trigger circuit outputs a trigger signal in response to a voltage difference between the power source lines, such as occurs when an electrostatic discharge is received along the power source lines. A buffer circuit in the protection circuit outputs a drive signal in response to the trigger signal. A switch circuit is connected between the first and second power source lines and controls the ON/OFF conduction state between the power source lines in response to the drive signal. A control circuit supplies a control signal to the switch circuit after the drive signal causes the switch circuit to switch to the ON conduction state. The control signal maintains the switch in the ON conduction state while the voltage difference between power source lines exceeds a predetermined value.Type: GrantFiled: February 28, 2014Date of Patent: February 16, 2016Assignee: Kabushiki Kaisha ToshibaInventor: Kazuhiro Kato
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Publication number: 20160020606Abstract: An electrostatic discharge protection circuit includes a first trigger circuit outputting a first trigger signal according to a first time constant and a voltage applied between power source lines. A second trigger circuit outputs a second trigger signal according to the voltage between the power source lines and a second time constant that is greater than the first time constant. A holding circuit outputs a shunt control signal in accordance with the first trigger signal and a reset signal supplied from a reset circuit in accordance with the second trigger signal. A shunt circuit is connected between the power source lines and provides a conductance path between the power source lines in accordance with the shunt control signal.Type: ApplicationFiled: February 26, 2015Publication date: January 21, 2016Inventors: Kazuhiro KATO, Takehito IKIMURA
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Patent number: 9148015Abstract: A circuit that protects against ESD and avoids an excessive power voltage drop during the protection operation includes a control circuit that is connected between power terminals and outputs a control signal when a voltage between the power terminals exceeds a predetermined value due to a surge current, and an asymmetric current transfer device including a PN junction reverse-biased by the power voltage between the power terminals, that is connected in series with the output current channel of a shunt transistor. The conductivity of the shunt transistor is controlled according to the control signal.Type: GrantFiled: June 6, 2013Date of Patent: September 29, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Kazuhiro Kato, Takehito Ikimura
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Publication number: 20150229125Abstract: According to one embodiment, an electrostatic protection circuit includes a first trigger circuit that is connected between a first power supply terminal and a second power supply terminal, and a second trigger circuit. The circuit includes a first buffer circuit that outputs a drive signal in response to a trigger signal of the first trigger circuit, and a second buffer circuit that outputs a drive signal in response to a trigger signal of the second trigger circuit. A shunt circuit includes a first switch circuit and a second switch circuit connected in series between the first and second power supply terminals. A conduction of the first switch circuit is controlled by a drive signal of the first buffer circuit, and a conduction of the second switch circuit is controlled by a drive signal of the second buffer circuit.Type: ApplicationFiled: September 2, 2014Publication date: August 13, 2015Inventors: Kazuhiro KATO, Takehito IKIMURA
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Publication number: 20150214732Abstract: A semiconductor circuit includes a clamp circuit and a switch circuit connected in series between a first power source terminal and a second power source terminal. The clamp circuit is configured to connect the first power source terminal to the second power source terminal when a voltage difference between the first and second power source terminals exceeds a threshold value. A control circuit controls the switch circuit such that the switch circuit is not conductive (open) when the voltage difference between the power source terminals is constant and is conductive (closed) when the voltage difference between the first and second power source terminals changes by more than a predetermined magnitude.Type: ApplicationFiled: April 3, 2015Publication date: July 30, 2015Inventors: Satoshi HARUKI, Kazuhiro KATO
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Patent number: 9036312Abstract: A semiconductor device for protecting loads from power surges includes a first resistor having a first end connected to a first supply terminal, a capacitor connected to a second end of the first resistor and a second supply terminal. There is a first transistor with a source connected to the first supply terminal and a gate connected to a point between the first resistor and the capacitor. A second resistor is connected between the drain of the first transistor and the second supply terminal, and a first diode is connected between the gate and the source of the first transistor. A second transistor has a drain connected to the first supply terminal, a source connected to the second supply terminal, and a gate connected to the drain of the first transistor. There is a second diode connected between the gate and the source of the second transistor.Type: GrantFiled: March 1, 2013Date of Patent: May 19, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Kazuhiro Kato, Hiroyuki Tsurumi, Yukio Sato, Takehito Ikimura, Akira Kumamoto, Hiroyuki Yamamoto, Shoichi Imakake, Tooru Asakawa