Patents by Inventor Tetsuya Okamoto
Tetsuya Okamoto 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).
-
Publication number: 20130215370Abstract: A thin film transistor substrate (20) includes: an insulating substrate (10a); a gate insulating layer (12) provided on the insulating substrate (10a); a connection layer (25) provided on the gate insulating layer (12), and made of indium gallium zinc oxide (IGZO); a drain electrode (16b) provided on the connection layer (25), and made of titanium; a contact hole (Ca) formed in the connection layer (25) and the drain electrode (16b); and a pixel electrode (19a) provided on a surface of the contact hole (Ca), and contacting the connection layer (25). The drain electrode (16b) and the pixel electrode (19a) are electrically connected together through the connection layer (25).Type: ApplicationFiled: May 11, 2011Publication date: August 22, 2013Applicant: Sharp Kabushiki KaishaInventors: Yudai Takanishi, Yohsuke Kanzaki, Tetsuya Okamoto, Yuhichi Saitoh, Yoshiki Nakatani
-
Publication number: 20130208207Abstract: An active matrix substrate (20) includes: a gate electrode (11) provided on an insulating substrate (10a); a gate insulating layer (12) covering the gate electrode (11); an oxide semiconductor layer (13) provided on the gate insulating layer (12); and a protective layer (17) covering the oxide semiconductor layer (13). The active matrix substrate (20) has a display region (D) where an image is displayed and a gate terminal region (Ts) located around the display region (D) and including a gate terminal (26) for connection to an external circuit. The gate terminal (26) includes a terminal line (21) provided on the insulating substrate (10a). The terminal line (26) is made of a conductive material different from a material constituting the oxide semiconductor layer (13).Type: ApplicationFiled: May 24, 2011Publication date: August 15, 2013Applicant: Sharp Kabushiki KaishaInventors: Tetsuya Okamoto, Yoshiki Nakatani, Yudai Takanishi, Yohsuke Kanzaki, Yuhichi Saitoh
-
Publication number: 20130175521Abstract: A TFT 20 includes a gate electrode 21, a gate insulating film 22, a semiconductor layer 23, a source electrode 24, a drain electrode 25, etc. The semiconductor layer 23 is comprised of a metal oxide semiconductor (IGZO), and has a source portion 23a that contacts the source electrode 24, a drain electrode 23b that contacts the drain electrode 25, and a channel portion 23c that is located between the source and drain portions 23a, 23b. A reduced region 30 is formed at least in the channel portion 23c of the semiconductor layer 23, and the reduced region 30 has a higher content of a simple substance of a metal such as In than the remaining portion of the semiconductor layer 23.Type: ApplicationFiled: May 23, 2011Publication date: July 11, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Masao Moriguchi, Michiko Takei, Yohsuke Kanzaki, Tsuyoshi Inoue, Tetsuo Fukaya, Yudai Takanishi, Takatsugu Kusumi, Yoshiki Nakatani, Tetsuya Okamoto, Kenji Nakanishi
-
Patent number: 8483637Abstract: A radio receiver converts received RF signals in a predetermined frequency band into digital RF signals, converts the digital RF signals into IF signals corresponding to RF signals whose carrier frequencies are different from one another, converts one of the digital RF signals into an IF signal corresponding to an RF signal whose carrier frequency matches a selection input made by a user, outputs audio data included in the converted IF signal corresponding to the RF signal whose carrier frequency meets the selection input made by the user, extracts sets of program information, respectively, from the converted IF signals corresponding to the RF signals, generates an electronic program guide by listing the extracted sets of program information in association with the carrier frequencies of the RF signals from which the sets of program information are extracted, and displays an image representing the electronic program guide.Type: GrantFiled: December 13, 2011Date of Patent: July 9, 2013Assignee: JVC KENWOOD CorporationInventors: Yotetsu Nakayama, Tetsuya Okamoto
-
Patent number: 8353180Abstract: An on-off valve (70) is provided in an oil feed path (43). When liquid refrigerant enters the oil feed pipe (43) from the oil separator (22), the temperature of the liquid refrigerant whose pressure has been reduced in the on-off valve (70) dramatically decreases. When the amount of such a decrease in temperature detected by a temperature sensor (73) exceeds a specified amount, it is determined that the liquid refrigerant enters the oil feed pipe (43), and the on-off valve (70) is closed.Type: GrantFiled: February 28, 2008Date of Patent: January 15, 2013Assignee: Daikin Industries, Ltd.Inventors: Masakazu Okamoto, Tetsuya Okamoto
-
Publication number: 20130011290Abstract: A rotary compressor includes a cylinder having an annular cylinder space, a piston eccentrically disposed relative to the cylinder, and a drive shaft (53) connected to the piston. The piston has a piston portion eccentrically rotatable relative to the cylinder, and a piston end plate closing the cylinder space. The cylinder has an end plate storage space storing the piston end plate in an eccentrically rotatable manner. The cylinder space forms a main cylinder chamber, and the end plate storage space forms a sub-cylinder chamber.Type: ApplicationFiled: March 18, 2011Publication date: January 10, 2013Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tetsuya Okamoto, Yoshitaka Shibamoto, Kazuhiro Furusho, Takazou Sotojima, Takayuki Kawano, Hiroshi Yoh
-
Patent number: 8312732Abstract: A compressor and an expander are provided in a refrigerant circuit of an air conditioner. In the compressor, refrigerator oil is supplied from an oil reservoir to a compression mechanism. In the expander, the refrigerator oil is supplied from an oil reservoir to an expansion mechanism. Internal spaces of a compressor casing and an expander casing communicate with each other through an equalizing pipe. An oil pipe connecting the compressor casing and the expander casing is provided with an oil amount adjusting valve operated on the basis of an output signal of an oil level sensor. When the oil amount adjusting valve is opened, the oil reservoir in the compressor casing and the oil reservoir in the expander casing communicate with each other to allow the refrigerator oil to flow through the oil pipe.Type: GrantFiled: April 16, 2007Date of Patent: November 20, 2012Assignee: Daikin Industries, Ltd.Inventors: Katsumi Sakitani, Masakazu Okamoto, Eiji Kumakura, Tetsuya Okamoto
-
Patent number: 8245528Abstract: In a compression/expansion unit (30) serving as a fluid machine, both of a compression mechanism (50) and an expansion mechanism (60) are contained in a single casing (31). A shaft (40) coupling the compression mechanism (50) to the expansion mechanism (60) has an oil feeding channel (90) formed therein. Refrigerating machine oil accumulated at the bottom of the casing (31) is sucked up into the oil feeding channel (90) and fed to the compression mechanism (50) and the expansion mechanism (60). The refrigerating machine oil fed to the expansion mechanism (60) is discharged from the expansion mechanism (60) together with the refrigerant after expansion, flows through the refrigerant circuit and then flows back to the compression mechanism (50) in the compression/expansion unit (30).Type: GrantFiled: March 5, 2007Date of Patent: August 21, 2012Assignee: Daikin Industries, Ltd.Inventors: Katsumi Sakitani, Masakazu Okamoto, Eiji Kumakura, Tetsuya Okamoto
-
Publication number: 20120149318Abstract: A radio receiver converts received RF signals in a predetermined frequency band into digital RF signals, converts the digital RF signals into IF signals corresponding to RF signals whose carrier frequencies are different from one another, converts one of the digital RF signals into an IF signal corresponding to an RF signal whose carrier frequency matches a selection input made by a user, outputs audio data included in the converted IF signal corresponding to the RF signal whose carrier frequency meets the selection input made by the user, extracts sets of program information, respectively, from the converted IF signals corresponding to the RF signals, generates an electronic program guide by listing the extracted sets of program information in association with the carrier frequencies of the RF signals from which the sets of program information are extracted, and displays an image representing the electronic program guide.Type: ApplicationFiled: December 13, 2011Publication date: June 14, 2012Applicant: JVC KENWOOD CORPORATIONInventors: Yotetsu NAKAYAMA, Tetsuya OKAMOTO
-
Publication number: 20120052877Abstract: A radio receiver includes a position detecting unit, a broadcasting tower extracting portion, a reception determining portion and an information notifying portion. The position detecting unit detects a plane position of the radio receiver. The broadcasting tower extracting portion calculates a relative distance between the radio receiver and each of broadcasting towers which exist within a relative region, based on the plane position of the radio receiver and plan positions of the broadcasting towers indicated by plural pieces of position information on broadcasting towers, and extracts the predetermined number of broadcasting towers or less in order of increasing relative distance. The reception determining portion determines whether or not the radio receiver can receive a radio broadcast signal from each extracted broadcasting tower. If a radio broadcast signal is received, the information notifying portion notifies a user of information included in the received radio broadcast signal.Type: ApplicationFiled: August 26, 2011Publication date: March 1, 2012Applicant: J&K CAR ELECTRONICS CORPORATIONInventors: Shinya TANAKA, Tetsuya OKAMOTO, Katsuya TAKAHASHI
-
Patent number: 8122735Abstract: A refrigerant circuit (11) of an air conditioner (10) includes a compressor (20) and an expander (30). In the compressor (20), refrigerator oil is supplied from an oil reservoir (27) to a compression mechanism (21). In the expander (30), the refrigerator oil is supplied from an oil reservoir (37) to an expansion mechanism (31). The inner pressures of the compressor casing (24) and the expander casing (34) are the high pressure and the low pressure of the refrigeration cycle, respectively. An oil adjusting valve (52) is provided in an oil pipe (42) connecting the compressor casing (24) and the expander casing (34). The oil amount adjusting valve (52) is operated on the basis of an output signal of an oil level sensor (51). When the oil amount adjusting valve (52) is opened, the refrigerator oil flows from the oil reservoir (27) in the compressor casing (24) toward the oil reservoir (37) in the expander casing (34) through the oil pipe (42).Type: GrantFiled: April 16, 2007Date of Patent: February 28, 2012Assignee: Daikin Industries, Ltd.Inventors: Katsumi Sakitani, Tetsuya Okamoto, Masakazu Okamoto, Eiji Kumakura
-
Patent number: 8104299Abstract: An air conditioner includes an indoor heat exchanger (radiator) and a controller. The radiator causes heat radiation to be performed with respect to air from a supercritical refrigerant during heating operation. The controller controls a room temperature by causing a high-pressure side pressure and a refrigerant outlet temperature of the radiator to reach respective target values. Preferably, the controller detects a refrigerant outlet temperature of the radiator with an outlet temperature sensor and detects a room temperature with a room temperature sensor. The controller increases or decreases a target value of the high-pressure side pressure when the controller has judged that there is an excess or a deficiency of capacity in view of the room temperature inside a room that is to be heated even when the refrigerant outlet temperature of the radiator has reached a target value during heating.Type: GrantFiled: July 24, 2007Date of Patent: January 31, 2012Assignee: Daikin Industries, Ltd.Inventors: Tetsuya Okamoto, Shinichi Kasahara
-
Publication number: 20110221697Abstract: A light shielding film includes a protrusion for a touch sensor, which is formed to protrude further than a color filter layer toward the side of a first substrate, and a spacer portion, which is formed to protrude further than the protrusion for a touch sensor toward the side of a first substrate and defines the thickness of a liquid crystal layer. A counter electrode, which covers the protrusion for a touch sensor and the color filter layer, is formed on a second substrate.Type: ApplicationFiled: July 21, 2009Publication date: September 15, 2011Applicant: Sharp Kabushiki KaishaInventors: Tetsuya Okamoto, Makoto Ohue, Manabu Abiru
-
Patent number: 7918096Abstract: In a refrigerant circuit (11), a compressor (20) and an expander (30) are provided separately. An expander casing (34) is connected to a delivery pipe (26) of the compressor (20) and high pressure refrigerant passes through the inside of the expander casing (34). Therefore, the compressor casing (24) and the expander casing (34) are equalized in their internal pressure. An oil distribution pipe (41) for connection of an oil sump (27) of the compressor (20) and an oil sump (37) of the expander (30) is provided with an oil regulating valve (52). The oil regulating valve (52) is controlled in response to a signal outputted from an oil level sensor (51). When the oil regulating valve (52) is opened, the oil sump (27) within the compressor casing (24) and the oil sump (37) within the expander casing (34) fluidly communicate with each other whereby refrigeration oil travels through the oil distribution pipe (41).Type: GrantFiled: April 16, 2007Date of Patent: April 5, 2011Assignee: Daikin Industries, Ltd.Inventors: Katsumi Sakitani, Tetsuya Okamoto, Masakazu Okamoto, Eiji Kumakura
-
Patent number: 7896627Abstract: A rotary type expander is provided with two rotary mechanism parts which differ from each other in displacement volume. The outflow side of the first rotary mechanism part of small displacement volume is fluidly connected to the inflow side of the second rotary mechanism part of large displacement volume. The processes by which the volume of a first low-pressure chamber in the first rotary mechanism part decreases and the volume of a second high-pressure chamber in the second rotary mechanism part increases are respectively in sync. Refrigerant at high pressure is first introduced into a first high-pressure chamber of the first rotary mechanism part. Thereafter, this high-pressure refrigerant passes through a communicating passage and then flows by way of the first low-pressure chamber into the second high-pressure chamber while expanding. The after-expansion refrigerant flows out to an outflow port from a second low-pressure chamber of the second rotary mechanism part.Type: GrantFiled: September 3, 2004Date of Patent: March 1, 2011Assignee: Daikin Industries, Ltd.Inventors: Masakazu Okamoto, Michio Moriwaki, Eiji Kumakura, Tetsuya Okamoto, Katsumi Sakitani
-
Publication number: 20110000239Abstract: An air conditioner (1) includes a refrigerant circuit (10) configured to perform a supercritical refrigeration cycle and including: an outdoor circuit (21) including a compressor (22), an outdoor heat exchanger (23), and an outdoor expansion valve (24); and two indoor circuits (31a, 31b) including indoor heat exchangers (33a, 33b) and indoor expansion valves (34a, 34b). The air conditioner (1) further includes a controller (50) configured to control outlet refrigerant temperatures of the indoor heat exchangers (33a, 33b).Type: ApplicationFiled: February 27, 2009Publication date: January 6, 2011Inventors: Tetsuya Okamoto, Shinichi Kasahara
-
Publication number: 20100281895Abstract: An air conditioner includes an indoor heat exchanger (radiator) and a controller. The radiator causes heat radiation to be performed with respect to air from a supercritical refrigerant during heating operation. The controller controls a room temperature by causing a high-pressure side pressure and a refrigerant outlet temperature of the radiator to reach respective target values. Preferably, the controller detects a refrigerant outlet temperature of the radiator with an outlet temperature sensor and detects a room temperature with a room temperature sensor. The controller increases or decreases a target value of the high-pressure side pressure when the controller has judged that there is an excess or a deficiency of capacity in view of the room temperature inside a room that is to be heated even when the refrigerant outlet temperature of the radiator has reached a target value during heating.Type: ApplicationFiled: July 24, 2007Publication date: November 11, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tetsuya Okamoto, Shinichi Kasahara
-
Publication number: 20100275634Abstract: A refrigerant circuit (11) includes an oil separator (60) configured to separate oil from high pressure refrigerant, and an oil feed circuit (70) configured to feed the oil separated in the oil separator (60) to a compression mechanism (20) so as to cool the refrigerant in the course of a compression phase of the compression mechanism (20). The oil feed circuit (70) includes a recovery mechanism (40) configured to recover energy of the oil separated in the oil separator (60). In the compression mechanism (20), the refrigerant is cooled by the oil, thereby reducing power of the compression mechanism (20). Simultaneously, in the recovery mechanism (40), power required to increase pressure of the oil in the compression mechanism (20) is recovered.Type: ApplicationFiled: February 3, 2009Publication date: November 4, 2010Inventors: Tetsuya Okamoto, Kazuhiro Furusho, Takayuki Kawano, Shinichi Kasahara, Masakazu Okamoto, Takahiro Yamaguchi, Michio Moriwaki, Syuuji Furui, Atsushi Yoshimi, Shuuji Fujimoto
-
Patent number: 7802447Abstract: A casing (31) houses therein an expansion mechanism (60) and a compression mechanism (50). The expansion mechanism (60) has a rear head (62) in which a pressure snubbing chamber (71) is provided. The pressure snubbing chamber (71) is divided by a piston (77) into an inflow/outflow chamber (72) which fluidly communicates with an inflow port (34) and a back pressure chamber (73) which fluidly communicates with the inside of the casing (31). The piston (77) is displaced in response to suction pressure variation whereby the volume of the inflow/outflow chamber (72) varies. This enables the inflow/outflow chamber (72) to directly perform supply of refrigerant to or suction of refrigerant from the inflow port (34) which is a source of pressure variation, thereby making it possible to effectively inhibit suction pressure variation.Type: GrantFiled: September 30, 2005Date of Patent: September 28, 2010Assignee: Daikin Industries, Ltd.Inventors: Eiji Kumakura, Masakazu Okamoto, Tetsuya Okamoto, Katsumi Sakitani
-
Patent number: 7784303Abstract: A positive displacement expander includes a volume change mechanism (90) for changing the volume of a first fluid chamber (72) of an expansion mechanism (60). The expansion mechanism (60) includes a first rotary mechanism (70) and a second rotary mechanism (80) each having a cylinder (71, 81) containing a rotor (75, 85). The first fluid chamber (72) of the first rotary mechanism (70) and a second fluid chamber (82) of the second rotary mechanism (80) are in fluid communication with each other to form an actuation chamber (66). Meanwhile, the first fluid chamber (72) of the first rotary mechanism (70) is smaller than the second fluid chamber (82) of the second rotary mechanism (80). The volume change mechanism (90) includes an auxiliary chamber (93) fluidly communicating with the first fluid chamber (72) and an auxiliary piston (92) for changing the volume of the auxiliary chamber (93). The auxiliary chamber (93) is in fluid communication with the first fluid chamber (72) of the first rotary mechanism (70).Type: GrantFiled: August 5, 2005Date of Patent: August 31, 2010Assignee: Daikin Industries, Ltd.Inventors: Katsumi Sakitani, Michio Moriwaki, Masakazu Okamoto, Eiji Kumakura, Yume Inokuchi, Tetsuya Okamoto, Yoshinari Sasaki