Patents by Inventor Tatsuya Ninomiya
Tatsuya Ninomiya 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: 20240124685Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition, a pyrazine compound represented by Formula (1) (component A1), and a polymerization inhibitor (Component B1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.Type: ApplicationFiled: December 4, 2023Publication date: April 18, 2024Applicant: Mitsubishi Chemical CorporationInventors: Yu Kurihara, Tatsuya Suzuki, Yuki Kato, Wataru Ninomiya, Maiko Kakimoto
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Patent number: 11218624Abstract: An image sensor includes a pixel array including multiple pixels. A lens is provided on an optical path of incident light to the image sensor. An actuator includes a coil, and supports positioning of the lens according to a driving signal applied to the coil. A position detection coil is arranged such that it magnetically couples with the coil of the actuator. An actuator driver supplies a pulse-shaped driving signal to the coil of the actuator driver. A position detection circuit generates a position detection signal that indicates the position of the lens based on an induced electromotive force that occurs in the position detection coil according to the driving signal, and feeds back the position detection signal to the actuator driver.Type: GrantFiled: August 10, 2020Date of Patent: January 4, 2022Assignees: ROHM CO., LTD., SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Akihito Saito, Tatsuya Ninomiya, Nobuo Kohmura, Kento Nishizawa, Tatsuro Shimizu, Takahiro Akahane, Go Asayama, Yuki Urano
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Publication number: 20200374428Abstract: An image sensor includes a pixel array including multiple pixels. A lens is provided on an optical path of incident light to the image sensor. An actuator includes a coil, and supports positioning of the lens according to a driving signal applied to the coil. A position detection coil is arranged such that it magnetically couples with the coil of the actuator. An actuator driver supplies a pulse-shaped driving signal to the coil of the actuator driver. A position detection circuit generates a position detection signal that indicates the position of the lens based on an induced electromotive force that occurs in the position detection coil according to the driving signal, and feeds back the position detection signal to the actuator driver.Type: ApplicationFiled: August 10, 2020Publication date: November 26, 2020Inventors: Akihito SAITO, Tatsuya NINOMIYA, Nobuo KOHMURA, Kento NISHIZAWA, Tatsuro SHIMIZU, Takahiro AKAHANE, Go ASAYAMA, Yuki URANO
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Patent number: 10200642Abstract: A camera module of the disclosure includes: an imaging unit that includes a plurality of pixels, acquires a first detection value in one of the pixels in a second term out of a first term, the second term, a third term, and a fourth term that are set in order, acquires a second detection value in the relevant one of the pixels in the fourth term, and obtains a pixel value of the relevant one of the pixels on the basis of a difference between the first and second detection values; a lens unit including a lens and an actuator that drives the lens; and a driver unit that generates a drive signal and drives the actuator using the drive signal, in which the drive signal makes a transition in each of the first and third terms.Type: GrantFiled: March 1, 2016Date of Patent: February 5, 2019Assignees: SONY CORPORATION, ROHM CO., LTD.Inventors: Takahiro Akahane, Ken Koseki, Kenichi Shigenami, Go Asayama, Rei Takamori, Tatsuya Ninomiya, Masato Nishinouchi, Masanori Onodera, Tatsuro Shimizu
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Patent number: 10141880Abstract: With a driving current as IDRV, with a reference voltage as VREF, and with a gain as k, a current detection circuit generates a detection voltage VS represented by VS=VREF+k×IDRV. An error amplifier amplifies a difference between the detection voltage VS and a control voltage that indicates a position of the VCM so as to generate an error voltage VERR. A first driver switches the driving current IDRV between a source current and a sink current with respect to one end of the coil according to the error voltage VERR. A second driver switches the driving current IDRV between a sink current and a source current with respect to the other end of the coil according to the error voltage VERR. The driving circuit allows an external circuit to set the level of the reference voltage VREF.Type: GrantFiled: October 22, 2015Date of Patent: November 27, 2018Assignee: ROHM CO., LTD.Inventor: Tatsuya Ninomiya
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Publication number: 20180220088Abstract: A camera module of the disclosure includes: an imaging unit that includes a plurality of pixels, acquires a first detection value in one of the pixels in a second term out of a first term, the second term, a third term, and a fourth term that are set in order, acquires a second detection value in the relevant one of the pixels in the fourth term, and obtains a pixel value of the relevant one of the pixels on the basis of a difference between the first and second detection values; a lens unit including a lens and an actuator that drives the lens; and a driver unit that generates a drive signal and drives the actuator using the drive signal, in which the drive signal makes a transition in each of the first and third terms.Type: ApplicationFiled: March 1, 2016Publication date: August 2, 2018Inventors: TAKAHIRO AKAHANE, KEN KOSEKI, KENICHI SHIGENAMI, GO ASAYAMA, REI TAKAMORI, TATSUYA NINOMIYA, MASATO NISHINOUCHI, MASANORI ONODERA, TATSURO SHIMIZU
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Patent number: 9338369Abstract: A driving circuit for controlling a driving current is provided. A D/A converter has a precision of N bits and outputs a control signal for a driving current to a current driver. A logic unit receives input control data of M bits (M>N) and outputs intermediate control data of N bits to the D/A converter. A data extraction unit divides the input control data into a first data having N bits from the MSB and a second data having (M?N) bits from the LSB. A counter accumulatively adds the second data to generate a count. A carry detection unit asserts a carry signal when a carry at the MSB of the count is generated by the counter. An output control unit 66 converts the intermediate control data into the first data or a third data, in which 1 LSB is added to the first data, according to the carry signal.Type: GrantFiled: January 23, 2015Date of Patent: May 10, 2016Assignee: ROHM CO., LTD.Inventor: Tatsuya Ninomiya
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Publication number: 20160043680Abstract: With a driving current as IDRV, with a reference voltage as VREF, and with a gain as k, a current detection circuit generates a detection voltage VS represented by VS=VREF+k×IDRV. An error amplifier amplifies a difference between the detection voltage VS and a control voltage that indicates a position of the VCM so as to generate an error voltage VERR. A first driver switches the driving current IDRV between a source current and a sink current with respect to one end of the coil according to the error voltage VERR. A second driver switches the driving current IDRV between a sink current and a source current with respect to the other end of the coil according to the error voltage VERR. The driving circuit allows an external circuit to set the level of the reference voltage VREF.Type: ApplicationFiled: October 22, 2015Publication date: February 11, 2016Inventor: Tatsuya NINOMIYA
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Publication number: 20150256731Abstract: A driving circuit for controlling a driving current is provided. A D/A converter has a precision of N bits and outputs a control signal for a driving current to a current driver. A logic unit receives input control data of M bits (M>N) and outputs intermediate control data of N bits to the D/A converter. A data extraction unit divides the input control data into a first data having N bits from the MSB and a second data having (M?N) bits from the LSB. A counter accumulatively adds the second data to generate a count. A carry detection unit asserts a carry signal when a carry at the MSB of the count is generated by the counter. An output control unit 66 converts the intermediate control data into the first data or a third data, in which 1 LSB is added to the first data, according to the carry signal.Type: ApplicationFiled: January 23, 2015Publication date: September 10, 2015Inventor: Tatsuya NINOMIYA
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Patent number: 8896746Abstract: A driving circuit drives a voice coil motor having a spring return mechanism. A driving current generating unit supplies, to a coil of the voice coil motor, a driving current that corresponds to an analog control signal. Waveform memory stores digital waveform data which indicates the time waveform of a driving current to be supplied to the voice coil motor. A predetermined frequency component is removed from the frequency components of the waveform data. A control unit reads out the waveform data from the waveform memory at a rate that corresponds to the resonance frequency of the voice coil motor, and outputs the waveform data thus read out as a digital code. A D/A converter converts a digital code into an analog control signal, and outputs the analog control signal to the driving current generating unit.Type: GrantFiled: August 10, 2011Date of Patent: November 25, 2014Assignee: Rohm Co., Ltd.Inventor: Tatsuya Ninomiya
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Publication number: 20120233398Abstract: The present invention comprises a CHA 110 which transmits/receives data to/from an external device, a DKA 140 which transmits/receives data to/from an HDD unit 200, a primary cache unit 120 which has a primary cache memory 124, a secondary cache unit 130 which is installed between the primary cache unit 120 and the DKA 140 and has a secondary cache memory 134, a CCP 121 which stores write target data received by the CHA 110 in the primary cache memory 124, and a CCP 131 which stores the write target data in the secondary cache memory 134, and transfers the write target data stored in the secondary cache memory 134 to the DKA 140.Type: ApplicationFiled: May 24, 2012Publication date: September 13, 2012Applicant: HITACHI, LTD.Inventors: Tatsuya NINOMIYA, Kazuo TANAKA
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Publication number: 20120200763Abstract: A driving circuit drives a voice coil motor having a spring return mechanism. A driving current generating unit supplies, to a coil of the voice coil motor, a driving current that corresponds to an analog control signal. Waveform memory stores digital waveform data which indicates the time waveform of a driving current to be supplied to the voice coil motor. A predetermined frequency component is removed from the frequency components of the waveform data. A control unit reads out the waveform data from the waveform memory at a rate that corresponds to the resonance frequency of the voice coil motor, and outputs the waveform data thus read out as a digital code. A D/A converter converts a digital code into an analog control signal, and outputs the analog control signal to the driving current generating unit.Type: ApplicationFiled: August 10, 2011Publication date: August 9, 2012Applicant: ROHM CO., LTD.Inventor: Tatsuya NINOMIYA
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Patent number: 8200897Abstract: The present invention comprises a CHA 110 which transmits/receives data to/from an external device, a DKA 140 which transmits/receives data to/from an HDD unit 200, a primary cache unit 120 which has a primary cache memory 124, a secondary cache unit 130 which is installed between the primary cache unit 120 and the DKA 140 and has a secondary cache memory 134, a CCP 121 which stores write target data received by the CHA 110 in the primary cache memory 124, and a CCP 131 which stores the write target data in the secondary cache memory 134, and transfers the write target data stored in the secondary cache memory 134 to the DKA 140.Type: GrantFiled: July 8, 2011Date of Patent: June 12, 2012Assignee: Hitachi, Ltd.Inventors: Tatsuya Ninomiya, Kazuo Tanaka
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Publication number: 20110271066Abstract: The present invention comprises a CHA 110 which transmits/receives data to/from an external device, a DKA 140 which transmits/receives data to/from an HDD unit 200, a primary cache unit 120 which has a primary cache memory 124, a secondary cache unit 130 which is installed between the primary cache unit 120 and the DKA 140 and has a secondary cache memory 134, a CCP 121 which stores write target data received by the CHA 110 in the primary cache memory 124, and a CCP 131 which stores the write target data in the secondary cache memory 134, and transfers the write target data stored in the secondary cache memory 134 to the DKA 140.Type: ApplicationFiled: July 8, 2011Publication date: November 3, 2011Applicant: HITACHI, LTD.Inventors: Tatsuya NINOMIYA, Kazuo Tanaka
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Patent number: 8006036Abstract: The present invention comprises a CHA 110 which transmits/receives data to/from an external device, a DKA 140 which transmits/receives data to/from an HDD unit 200, a primary cache unit 120 which has a primary cache memory 124, a secondary cache unit 130 which is installed between the primary cache unit 120 and the DKA 140 and has a secondary cache memory 134, a CCP 121 which stores write target data received by the CHA 110 in the primary cache memory 124, and a CCP 131 which stores the write target data in the secondary cache memory 134, and transfers the write target data stored in the secondary cache memory 134 to the DKA 140.Type: GrantFiled: January 24, 2008Date of Patent: August 23, 2011Assignee: Hitachi, Ltd.Inventors: Tatsuya Ninomiya, Kazuo Tanaka
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Publication number: 20080222359Abstract: The present invention comprises a CHA 110 which transmits/receives data to/from an external device, a DKA 140 which transmits/receives data to/from an HDD unit 200, a primary cache unit 120 which has a primary cache memory 124, a secondary cache unit 130 which is installed between the primary cache unit 120 and the DKA 140 and has a secondary cache memory 134, a CCP 121 which stores write target data received by the CHA 110 in the primary cache memory 124, and a CCP 131 which stores the write target data in the secondary cache memory 134, and transfers the write target data stored in the secondary cache memory 134 to the DKA 140.Type: ApplicationFiled: January 24, 2008Publication date: September 11, 2008Applicant: HITACHI, LTD.Inventors: Tatsuya NINOMIYA, Kazuo TANAKA