Patents by Inventor Toru Kuriyama
Toru Kuriyama 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: 20240097671Abstract: A semiconductor device includes a first transistor, a first drive circuit including a second transistor, and a second drive circuit including a third transistor. The second transistor and the third transistor are connected in series; and a connection node of the second and third transistors is connected to a gate electrode of the first transistor. The first transistor, the second transistor, and the third transistor are normally-off MOS HEMTs formed in a first substrate that includes GaN. The first drive circuit charges a parasitic capacitance of the first transistor. The second drive circuit discharges the parasitic capacitance of the first transistor.Type: ApplicationFiled: February 10, 2023Publication date: March 21, 2024Inventors: Toru SUGIYAMA, Noriaki YOSHIKAWA, Yasuhiko KURIYAMA, Akira YOSHIOKA, Hitoshi KOBAYASHI, Hung HUNG, Yasuhiro ISOBE, Tetsuya OHNO, Hideki SEKIGUCHI, Masaaki ONOMURA
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Patent number: 9642257Abstract: The liquid crystal display device includes a liquid crystal panel including a display area for displaying images and a non-display area other than the display area, a rigid board configured to connect with an external signal source, and a flexible board. The liquid crystal panel and the flexible board are arranged in a first direction. A direction perpendicular to the first direction and along a plate surface of the liquid crystal panel is a second direction. The flexible board is larger in a dimension in the second direction than the rigid board, and includes an end portion including at least an outer portion located outside of the rigid board in the second direction, and a middle portion located about a middle of the flexible board with respect to the end portion in the second direction. The end portion is larger in dimension in the first direction than the middle portion.Type: GrantFiled: November 5, 2013Date of Patent: May 2, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Toru Kuriyama, Hideki Morii, Hirofumi Miyamoto, Takayuki Mizunaga, Yuta Ueyama, Toshihiro Yanagi
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Publication number: 20150319862Abstract: The liquid crystal display device includes a liquid crystal panel including a display area for displaying images and a non-display area other than the display area, a rigid board configured to connect with an external signal source, and a flexible board. The liquid crystal panel and the flexible board are arranged in a first direction. A direction perpendicular to the first direction and along a plate surface of the liquid crystal panel is a second direction. The flexible board is larger in a dimension in the second direction than the rigid board, and includes an end portion including at least an outer portion located outside of the rigid board in the second direction, and a middle portion located about a middle of the flexible board with respect to the end portion in the second direction. The end portion is larger in dimension in the first direction than the middle portion.Type: ApplicationFiled: November 5, 2013Publication date: November 5, 2015Inventors: Toru KURIYAMA, Hideki MORII, Hirofumi MIYAMOTO, Takayuki MIZUNAGA, Yuta UEYAMA, Toshihiro YANAGI
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Patent number: 8743041Abstract: In order to carry out a display reset operation, a segment driver and a common driver are driven to operate as below during a display data reading period in which voltages to be applied to a liquid crystal display panel are nonuniform between lines. First, a shift register and a level shifter which are provided in the segment driver and a shift register and a level shifter which are provided in the common driver are driven to operate as usual, whereas a display control signal supplied from a controller causes output circuits to stop carrying out their respective output operations. In at least one embodiment, during a period in which a writing operation is carried out with respect to the liquid crystal display panel so as to carry out the display reset operation, the display control signal supplied from the controller allows the output circuits to carry out the respective output operations. This allows a memory (e.g.Type: GrantFiled: October 28, 2009Date of Patent: June 3, 2014Assignee: Sharp Kabushiki KaishaInventors: Toru Kuriyama, Hisashi Yamaguchi, Hiromasa Asada
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Publication number: 20130070180Abstract: A display panel (4) is a display panel having a light-shield tape strip (21) and a light-shield tape strip (22), both light-shield tape strips are attached to the inside of the perimeter of the display panel (4). A first edge (21a) is formed at an end of the light-shield tape strip (21) of the display panel (4), and a second edge (22a) is formed at an end of the light-shield tape strip (22) of the display panel (4) so as to face the first edge (21a). The first edge (21a) and the second edge (22a) of the display panel (4) are shaped so as to be engaged with each other at least partly.Type: ApplicationFiled: April 21, 2011Publication date: March 21, 2013Inventor: Toru Kuriyama
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Publication number: 20110205203Abstract: In order to carry out a display reset operation, a segment driver and a common driver are driven to operate as below during a display data reading period in which voltages to be applied to a liquid crystal display panel are nonuniform between lines. First, a shift register and a level shifter which are provided in the segment driver and a shift register and a level shifter which are provided in the common driver are driven to operate as usual, whereas a display control signal supplied from a controller causes output circuits to stop carrying out their respective output operations. In at least one embodiment, during a period in which a writing operation is carried out with respect to the liquid crystal display panel so as to carry out the display reset operation, the display control signal supplied from the controller allows the output circuits to carry out the respective output operations. This allows a memory (e.g.Type: ApplicationFiled: October 28, 2009Publication date: August 25, 2011Applicant: Sharp Kabushiki KaishaInventors: Toru Kuriyama, Hisashi Yamaguchi, Hiromasa Asada
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Patent number: 6107905Abstract: A superconducting magnet apparatus including a superconducting coil for generating a magnetic field, a radiation shield surrounding the superconducting coil, a refrigerator for cooling the superconducting coil, and a cryostat provided inside the radiation shield to store a coolant cooled by the refrigerator, wherein the cryostat is thermally connected to the superconducting coil.Type: GrantFiled: March 25, 1999Date of Patent: August 22, 2000Assignee: Kabushiki Kaisha ToshibaInventors: Koji Itoh, Michitaka Ono, Toru Kuriyama, Yasutsugu Morii
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Patent number: 5960868Abstract: In the adiabatic apparatus of the present invention, a vessel includes an adiabatic layer in which an object is taken. A plurality of thermal shield plates are located in the adiabatic layer. Each thermal shield plate concentrically surrounds the object. A temperature control section cools or heats the object and the plurality of thermal shield plates. A switch section thermally connects the temperature control section to the plurality of thermal shield plates and the object if temperature of the plurality of thermal shield plates and the object is controlled, and thermally separates the temperature control section from the plurality of thermal shield plates and the object if control of the temperature of the plurality of thermal shield plates and the object is completed.Type: GrantFiled: February 12, 1998Date of Patent: October 5, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Toru Kuriyama, Masahiko Takahashi, Rohana Chandratilleke, Yasumi Ohtani, Hideki Nakagome
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Patent number: 5842348Abstract: A cryogenic cooling apparatus including a vacuum container for containing an object to be cooled, at least one refrigerator for cooling the object, and a thermal switch unit. The refrigerator has a high-temperature cooling stage and a low-temperature cooling stage connected to the high-temperature cooling stage via a low-temperature cylinder. The thermal switch unit has at least one high-temperature heat transfer member attached to the high-temperature cooling stage, at least one low-temperature heat transfer member attached to the low-temperature cooling stage and separated from the high-temperature heat transfer member, and a sealed container provided between the high-temperature cooling stage and the low-temperature cooling stage.Type: GrantFiled: April 9, 1997Date of Patent: December 1, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Tomomi Kaneko, Rohana Chandratilleke, Toru Kuriyama
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Cryogenic cooling apparatus and cryogenic cooling method for cooling object to very low temperatures
Patent number: 5737927Abstract: A cryogenic cooling apparatus is provided, wherein the degree of freedom of installation and use is increased without deteriorating the reliability or stability and the range of uses of the apparatus is also increased. A coil unit and a refrigeration unit are positioned such that a second heat conductive member disposed on an extendible wall of a vacuum container and a fourth heat conductive member disposed on an extendible wall of another vacuum container face each other coaxially. In this state, the coil unit and refrigeration unit are relatively moved to approach each other, and thus the second heat conductive member and fourth heat conductive member come in contact. If the coil unit and refrigeration unit are further moved, the extendible wall extends and consequently the second heat conductive member comes in contact with a first heat conductive member. In addition, the extendible wall contracts and consequently the fourth heat conductive member comes in contact with a third heat conductive member.Type: GrantFiled: March 14, 1997Date of Patent: April 14, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Masahiko Takahashi, Yasumi Ohtani, Rohana Chandratilleke, Hideo Hatakeyama, Hideki Nakagome, Toru Kuriyama -
Patent number: 5711157Abstract: A superconducting magnet apparatus comprises a superconducting coil unit, and a refrigerant-filled chamber type refrigerator having a plurality of cooling stages. At least a final cooling stage of the cooling stages includes a static-type refrigerant-filled chamber and is associated with the superconducting coil unit, and at least a first cooling stage of the cooling stages includes a movable-type refrigerant-filled chamber.Type: GrantFiled: May 15, 1996Date of Patent: January 27, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Yasumi Ohtani, Masahiko Takahashi, Hideo Hatakeyama, Rohana Chandratilleke, Toru Kuriyama, Hideki Nakagome, Takayuki Kobayashi, Tomomi Hattori, Tatsuya Yoshino
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Patent number: 5686876Abstract: The superconducting magnet apparatus includes a cryostat, a superconducting coil provided in the cryostat, and a current lead having a portion made of an oxide superconductor, for supplying a current to the superconducting coil. The portion of the current lead which is made of the oxide superconductor has a high-temperature end and a low-temperature end, and the current lead is arranged such that the direction of a current flow in at least the high-temperature end and the direction of a leakage magnetic flux applied from the superconducting coil to the high-temperature end are made substantially in parallel to each other.Type: GrantFiled: November 22, 1994Date of Patent: November 11, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Kazutaka Yamamoto, Tamaki Masegi, Yutaka Yamada, Shunji Nomura, Toru Kuriyama, Takashi Yazawa
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Patent number: 5647218Abstract: A cooling apparatus comprises a main refrigerator having a refrigerant-filled chamber, a sub-refrigerator connected parallel to the main refrigerator and having a refrigerant-filled chamber, switch control means for controlling the switching operation between the supply of a refrigerant used in the main refrigerator to the sub-refrigerator, and the stop of the supply of the refrigerant, on the basis of predetermined conditions.Type: GrantFiled: May 14, 1996Date of Patent: July 15, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Toru Kuriyama, Yasumi Ohtani, Rohana Chandratilleke, Tatsuya Yoshino, Takayuki Kobayashi
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Patent number: 5447034Abstract: A cryogenic refrigerator includes a first refrigerant filled in a final refrigerating force storage chamber on a high temperature side thereof and consisting essentially of a composition expressed by (a) (Er.sub.(x) R.sub.(1-x)).sub.3 Ni.sub.(y) Co.sub.(1-y), or (b) Er.sub.(x) R.sub.(1-x) Ni.sub.(y) Cu.sub.(1-y) wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, and R denotes a rare earth element selected from the group consisting of Y, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb and Sc, a second refrigerant filled in the final refrigerating force storage chamber on a low temperature side thereof and consisting essentially of a composition expressed by (f) Er.sub.(x) R.sub.(1-x) Ni.sub.(y) Co.sub.(1-y), or (g) (Er.sub.(x) R.sub.(1-x)).sub.3 AlC.sub.(y) wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.Type: GrantFiled: November 4, 1993Date of Patent: September 5, 1995Assignee: Kabushiki Kaisha ToshibaInventors: Toru Kuriyama, Masahiko Takahashi, Hideki Nakagome, Akiko Takahashi, Yoichi Tokai
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Patent number: 5412952Abstract: The present invention provides a pulse tube refrigerator, comprising a regenerator having an inlet port and an outlet port, a pulse tube having one end portion connected in series to the outlet port of the regenerator, a gas compressor connected to the inlet port of the regenerator, a first valve disposed between the discharge port of the gas compressor and the inlet port of the regenerator, a second valve disposed between the suction port of the gas compressor and the inlet port of the regenerator, a first valve controller for selectively opening/closing alternately the first and second valves to permit a high pressure coolant gas discharged from the discharge port of the gas compressor to be guided into the pulse tube through the regenerator and, then, to permit said coolant gas to be sucked into the gas compressor through the suction port thereof via the reverse passageway so as to generate coldness, a third valve disposed between the other end portion of the pulse tube and the discharge port of the gas coType: GrantFiled: June 1, 1994Date of Patent: May 9, 1995Assignee: Kabushiki Kaisha ToshibaInventors: Yasumi Ohtani, Hideo Hatakeyama, Toru Kuriyama, Hideki Nakagome, Yoichi Matsubara
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Patent number: 5339650Abstract: A cryostat housing an ultra-low temperature medium includes a container for storing the ultra-low temperature medium, a pipe for communication between the inner and outer sections of the container, at least one tubular member interposedly arranged inside the pipe between the pipe and an opening, a heat anchor section for cooling the pipe, and a plate-shaped member positioned so that a gas layer of the ultra-low temperature medium inside the tubular member divides the tubular member longitudinally.Type: GrantFiled: December 30, 1992Date of Patent: August 23, 1994Assignee: Kabushiki Kaisha ToshibaInventors: Ryuichi Hakamada, Masahiko Takahashi, Toru Kuriyama, Hideki Nakagome
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Patent number: 5335505Abstract: The present invention provides a pulse tube refrigerator, comprising a regenerator having an inlet port and an outlet port, a pulse tube having one end portion connected in series to the outlet port of the regenerator, a gas compressor connected to the inlet port of the regenerator, a first valve disposed between the discharge port of the gas compressor and the inlet port of the regenerator, a second valve disposed between the suction port of the gas compressor and the inlet port of the regenerator, a first valve controller for selectively opening/closing alternately the first and second valves to permit a high pressure coolant gas discharged from the discharge port of the gas compressor to be guided into the pulse tube through the regenerator and, then, to permit said coolant gas to be sucked into the gas compressor through the suction port thereof via the reverse passageway so as to generate coldness, a third valve disposed between the other end portion of the pulse tube and the discharge port of the gas coType: GrantFiled: May 25, 1993Date of Patent: August 9, 1994Assignee: Kabushiki Kaisha ToshibaInventors: Yasumi Ohtani, Hideo Hatakeyama, Toru Kuriyama, Hideki Nakagome, Yoichi Matsubara
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Patent number: 5224657Abstract: A cryogenic refrigerator comprising a closed cylinder provided with an inlet and an outlet for introducing and discharging a coolant gas into and out of the cylinder, a displacer slidably housed in the closed cylinder and housing a cooling member therein and having a passage through which the coolant gas flows, a device coaxially arranged in and along the passage of the displacer in which the cooling member is housed to divide the passage into outer and inner ones, a device for reciprocating the displacer in the cylinder, and a device for repeating the process of introducing the high pressure coolant gas into the cylinder through the inlet and discharging it out of the cylinder, synchronizing with the reciprocating displacer.Type: GrantFiled: October 17, 1991Date of Patent: July 6, 1993Assignee: Kabushiki Kaisha ToshibaInventors: Toru Kuriyama, Hideki Nakagome, Yoichi Tokai
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Patent number: 4790147Abstract: A helium cooling apparatus includes a liquid helium container which stores liquid helium and a condensation chamber incorporating a condensation heat exchanger for condensing a gas helium into liquid helium. A transfer tube allows the liquid helium container to communicate with the condensation chamber. The transfer tube has a gas flow path and a liquid helium flow path independently thereof. When the liquid helium in the liquid helium container is evaporated into gas helium, the gas helium is guided to the condensation chamber through the gas helium flow path. The gas helium is condensed by a condensation heat exchanger into liquid helium. The liquid helium is guided to the liquid helium container through the liquid helium flow path.Type: GrantFiled: November 13, 1987Date of Patent: December 13, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Toru Kuriyama, Ryuichi Hakamada
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Patent number: D998769Type: GrantFiled: January 30, 2020Date of Patent: September 12, 2023Assignee: Mitsubishi Electric CorporationInventors: Takahiro Akizuki, Katsunori Horiuchi, Yuji Tarumi, Shoichi Hirano, Toru Kuriyama, Takuya Ito, Yoshio Yamano, Takahito Hikone, Shohei Takenaka, Takenori Matsumoto, Naoya Mukaitani, Junichi Miyai