Patents by Inventor Osamu Hosokawa
Osamu Hosokawa 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: 20140366364Abstract: A stationary induction electric apparatus includes a porcelain tube, a connection conductor, a conductor, a casing, a lead, a terminal, a spacer, an electric connection member and a first and a second insulating medium. The connection conductor is disposed at one end of the porcelain tube. The conductor is disposed in the porcelain tube, and connected to the connection conductor. The casing covers a stationary induction electric apparatus main body, and has an opening part. The lead extends from the main body to the opening part. The terminal is disposed at an end part of the lead. The spacer seals the other end of the porcelain tube and the opening part. The member includes an electrode connected to the terminal and a joint part connected to the conductor, and penetrates the spacer. The first and second insulating media are respectively filled in the porcelain tube and the casing.Type: ApplicationFiled: September 4, 2014Publication date: December 18, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kei TAKANO, Shin YAMADA, Osamu HOSOKAWA, Takeshi CHIGIRI, Kiyokatsu AKIMOTO
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Patent number: 8860540Abstract: A stationary induction electric apparatus includes a porcelain tube, a connection conductor, a conductor, a casing, a lead, a terminal, a spacer, an electric connection member and a first and a second insulating medium. The connection conductor is disposed at one end of the porcelain tube. The conductor is disposed in the porcelain tube, and connected to the connection conductor. The casing covers a stationary induction electric apparatus main body, and has an opening part. The lead extends from the main body to the opening part. The terminal is disposed at an end part of the lead. The spacer seals the other end of the porcelain tube and the opening part. The member includes an electrode connected to the terminal and a joint part connected to the conductor, and penetrates the spacer. The first and second insulating media are respectively filled in the porcelain tube and the casing.Type: GrantFiled: July 12, 2012Date of Patent: October 14, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kei Takano, Shin Yamada, Osamu Hosokawa, Takeshi Chigiri, Kiyokatsu Akimoto
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Patent number: 8385038Abstract: The system of the invention includes a circuit breaker switching control section (100) and a setting control section (700) connected therewith through a communication network (500). The circuit breaker switching control section (100) transmits a circuit breaker state quantity acquired by a signal input section (120) through the communication network to a set value calculation section (740) of the setting control section (700). The set value calculation section (740) of the setting control section calculates a set value to be set in the switching control section (100) of the circuit breaker, using the state quantity of the circuit breaker that was transmitted thereto. The setting control section (700) transmits to the circuit breaker switching control section the set value calculated by the set value calculation section (730) through the communication network.Type: GrantFiled: March 26, 2010Date of Patent: February 26, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Minoru Saito, Hiroyuki Maehara, Osamu Hosokawa
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Publication number: 20130033349Abstract: A stationary induction electric apparatus includes a porcelain tube, a connection conductor, a conductor, a casing, a lead, a terminal, a spacer, an electric connection member and a first and a second insulating medium. The connection conductor is disposed at one end of the porcelain tube. The conductor is disposed in the porcelain tube, and connected to the connection conductor. The casing covers a stationary induction electric apparatus main body, and has an opening part. The lead extends from the main body to the opening part. The terminal is disposed at an end part of the lead. The spacer seals the other end of the porcelain tube and the opening part. The member includes an electrode connected to the terminal and a joint part connected to the conductor, and penetrates the spacer. The first and second insulating media are respectively filled in the porcelain tube and the casing.Type: ApplicationFiled: July 12, 2012Publication date: February 7, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Kei TAKANO, Shin Yamada, Osamu Hosokawa, Takeshi Chigiri, Kiyokatsu Akimoto
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Patent number: 8085637Abstract: A DPD tracking error signal detection apparatus includes the following. Four differentiators remove DC components and differentiate four signal with varying differential phases. The signals are then sampled and quantized by four A/D converters, and output to a non-inverting unit and an inverting unit. A phase inverter/compositor then leaves as-is or phase-inverts the output signals, according to a control signal. The non-inverting and the inverting unit each include two Hilbert transformers that phase-shift the output from the A/D converters, two delay units that delay the output of the other A/D converters to match the delay of the Hilbert transformers, two cross-correlators that calculate the cross-correlation between pairs of Hilbert transformers and delay units, and an adding unit that combines the cross-correlator results and outputs the combined result to the phase inverter/compositor.Type: GrantFiled: September 29, 2009Date of Patent: December 27, 2011Assignee: Sony CorporationInventors: Osamu Hosokawa, Nobuyoshi Kobayashi
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Publication number: 20100254060Abstract: The system of the invention includes a circuit breaker switching control section (100) and a setting control section (700) connected therewith through a communication network (500). The circuit breaker switching control section (100) transmits a circuit breaker state quantity acquired by a signal input section (120) through the communication network to a set value calculation section (740) of the setting control section (700). The set value calculation section (740) of the setting control section calculates a set value to be set in the switching control section (100) of the circuit breaker, using the state quantity of the circuit breaker that was transmitted thereto. The setting control section (700) transmits to the circuit breaker switching control section the set value calculated by the set value calculation section (730) through the communication network.Type: ApplicationFiled: March 26, 2010Publication date: October 7, 2010Applicant: Kabushiki Kaisha ToshibaInventors: Minoru Saito, Hiroyuki Maehara, Osamu Hosokawa
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Patent number: 7720180Abstract: The objective of this invention is to perform high-precision tracking error detection and tracking control using digital circuitry at relatively low speed and with a small circuit scale. Tracking servo circuit is formed as a single-chip circuit. Low-pass filters (LPF) and gain control amplifiers (GCA) of the input portion are analog circuits, while the circuits after analog-digital (A/D) converters, that is, offset cancellation circuits, equalizers (EQ), first and second phase difference detectors, adder, low-pass filter (LPF), gain control amplifier (GCA), and servo DSP are all digital circuits.Type: GrantFiled: March 15, 2006Date of Patent: May 18, 2010Assignee: Texas Instruments IncorporatedInventors: Hiromichi Oshikubo, Shoji Kobayashi, Osamu Hosokawa
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Publication number: 20100080100Abstract: A DPD tracking error signal detection apparatus includes the following. Four differentiators remove DC components and differentiate four signal with varying differential phases. The signals are then sampled and quantized by four A/D converters, and output to a non-inverting unit and an inverting unit. A phase inverter/compositor then leaves as-is or phase-inverts the output signals, according to a control signal. The non-inverting and the inverting unit each include two Hilbert transformers that phase-shift the output from the A/D converters, two delay units that delay the output of the other A/D converters to match the delay of the Hilbert transformers, two cross-correlators that calculate the cross-correlation between pairs of Hilbert transformers and delay units, and an adding unit that combines the cross-correlator results and outputs the combined result to the phase inverter/compositor.Type: ApplicationFiled: September 29, 2009Publication date: April 1, 2010Applicant: Sony CorporationInventors: Osamu Hosokawa, Nobuyoshi Kobayashi
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Patent number: 7650875Abstract: To quickly suppress a detected decrease in engine speed in a direct injection internal combustion engine (10), a fuel injection quantity is increased by performing a supplementary fuel injection in addition to a normal fuel injection.Type: GrantFiled: December 23, 2005Date of Patent: January 26, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanao Idogawa, Osamu Hosokawa
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Patent number: 7591243Abstract: In a direct injection internal combustion engine which switches a fuel injection mode between a batch injection in which fuel is injected once and a split injection in which fuel is injected at a plurality of timings, a fuel increase amount is set larger for the split injection than for the batch injection when increase-correcting a fuel injection quantity set based on an engine operating state.Type: GrantFiled: December 23, 2005Date of Patent: September 22, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanao Idogawa, Osamu Hosokawa, Jun Maemura
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Patent number: 7447586Abstract: A valve characteristic control apparatus is provided in an internal combustion engine including a variable valve mechanism that can change at the least, among valve characteristics of an exhaust valve, a closing timing of the exhaust valve, and in which a number of injections of fuel is changed during one engine cycle. The valve characteristic control apparatus sets the closing timing of the exhaust valve to a retard side during an engine warming up operation. When setting to the retard side is performed, if two injections are performed, an exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a dual injection use map. On the other hand, if one injection is performed, the exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a single injection use map.Type: GrantFiled: December 16, 2005Date of Patent: November 4, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanao Idogawa, Osamu Hosokawa
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Publication number: 20080243363Abstract: A valve characteristic control apparatus is provided in an internal combustion engine including a variable valve mechanism that can change at the least, among valve characteristics of an exhaust valve, a closing timing of the exhaust valve, and in which a number of injections of fuel is changed during one engine cycle. The valve characteristic control apparatus sets the closing timing of the exhaust valve to a retard side during an engine warming up operation. When setting to the retard side is performed, if two injections are performed, an exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a dual injection use map. On the other hand, if one injection is performed, the exhaust side target displacement angle VTTex of the exhaust valve is calculated based on a single injection use map.Type: ApplicationFiled: December 16, 2005Publication date: October 2, 2008Inventors: Masanao Idogawa, Osamu Hosokawa
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Publication number: 20080114524Abstract: To quickly suppress a detected decrease in engine speed in a direct injection internal combustion engine (10), a fuel injection quantity is increased by performing a supplementary fuel injection in addition to a normal fuel injection.Type: ApplicationFiled: December 23, 2005Publication date: May 15, 2008Inventors: Masanao Idogawa, Osamu Hosokawa
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Publication number: 20080087251Abstract: In a direct injection internal combustion engine (10) which switches a fuel injection mode between a batch injection in which fuel is injected once and a split injection in which fuel is injected at a plurality of timings, a fuel increase amount is set larger for the split injection than for the batch injection when increase-correcting a fuel injection quantity set based on an engine operating state.Type: ApplicationFiled: December 23, 2005Publication date: April 17, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Osamu Hosokawa, Jun Maemura
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Patent number: 7322342Abstract: A requested injection amount of fuel necessary during ignition cut-off at the time of start at an extremely low temperature is calculated (step ST2), injection start timing and injection end timing between which wetting of a spark plug by fuel is less likely are set (step ST3), and the number of times of ignition cut-off is calculated based on the injection start timing and the injection end timing and the requested injection amount (step ST4). The injection start timing and the injection end timing are thus restricted to timings between which plug wetting is less likely, and the number of times of ignition cut-off is calculated based on the injection start timing and the injection end timing and the requested injection amount, so that wetting of the spark plug by fuel at the extremely low temperature can be avoided even in an in-cylinder direct-injection engine.Type: GrantFiled: July 11, 2006Date of Patent: January 29, 2008Assignees: Toyota Jidosha Kabushiki Kaisha, Yamaha Hatsudoki Kabushiki KaishaInventors: Jun Maemura, Masanao Idogawa, Masahiko Teraoka, Osamu Hosokawa, Takeyasu Muraishi
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Publication number: 20070012295Abstract: A requested injection amount of fuel necessary during ignition cut-off at the time of start at an extremely low temperature is calculated (step ST2), injection start timing and injection end timing between which wetting of a spark plug by fuel is less likely are set (step ST3), and the number of times of ignition cut-off is calculated based on the injection start timing and the injection end timing and the requested injection amount (step ST4). The injection start timing and the injection end timing are thus restricted to timings between which plug wetting is less likely, and the number of times of ignition cut-off is calculated based on the injection start timing and the injection end timing and the requested injection amount, so that wetting of the spark plug by fuel at the extremely low temperature can be avoided even in an in-cylinder direct-injection engine.Type: ApplicationFiled: July 11, 2006Publication date: January 18, 2007Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Jun Maemura, Masanao Idogawa, Masahiko Teraoka, Osamu Hosokawa, Takeyasu Muraishi
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Publication number: 20060209991Abstract: The objective of this invention is to perform high-precision tracking error detection and tracking control using digital circuitry at relatively low speed and with a small circuit scale. Tracking servo circuit is formed as a single-chip circuit. Low-pass filters (LPF) and gain control amplifiers (GCA) of the input portion are analog circuits, while the circuits after analog-digital (A/D) converters, that is, offset cancellation circuits, equalizers (EQ), first and second phase difference detectors, adder, low-pass filter (LPF), gain control amplifier (GCA), and servo DSP are all digital circuits.Type: ApplicationFiled: March 15, 2006Publication date: September 21, 2006Inventors: Hiromichi Oshikubo, Shoji Kobayashi, Osamu Hosokawa
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Patent number: 6647948Abstract: An engine has an injector, which directly injects fuel into a combustion chamber. When the coolant temperature during the cranking of the engine is low, an ECU controls the injector such that the engine is operated in a compression stroke injection mode. When the engine is operated in the compression stroke injection mode, the ECU controls the injector to advance the fuel injection timing in accordance with an increase of the coolant temperature. As a result, the engine reduces the amount of unburned discharge gas, provides improved ignition and combustion, and provides stable idling.Type: GrantFiled: October 17, 2001Date of Patent: November 18, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takahide Kyuuma, Noboru Takagi, Osamu Hosokawa
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Patent number: 6647949Abstract: A fuel-injected engine is operated in a compression stroke injection mode or an intake stroke injection mode. The intake flow rate appropriate for the compression stroke injection mode is greater than that of the intake stroke injection mode. When the engine is cold, the ECU determines the amount of fuel injected in accordance with the actual intake flow rate. The ECU controls a throttle valve such that the intake flow rate is appropriate for the selected fuel injection mode before the fuel injection mode is actually switched. As a result, fluctuations of the engine speed caused by switching the fuel injection mode are reduced.Type: GrantFiled: October 23, 2001Date of Patent: November 18, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventors: Osamu Hosokawa, Noboru Takagi, Takahide Kyuuma
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Patent number: 6647952Abstract: A control apparatus for a cylinder injection type internal combustion engine in which the fuel injection mode of the engine is switched between a compression stroke injection and an intake stroke injection. When the engine is cold, the compression stroke injection is selected for the fuel injection mode so that injected fuel collides with the top surface of a piston and is directed toward the vicinity of a spark plug. When the fuel injection mode is switched from the compression stroke injection to the intake stroke injection, the ignition timing is delayed during the execution of the intake stroke injection from when the fuel injection mode is switched until a predetermined period elapses compared with a case when the fuel injection mode is not switched.Type: GrantFiled: January 2, 2002Date of Patent: November 18, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masanao Idogawa, Hirohisa Kishi, Noboru Takagi, Osamu Hosokawa