Patents by Inventor Masami Nakamura
Masami Nakamura 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: 20240109874Abstract: The present invention provides a compound having a cholinergic muscarinic M1 receptor positive allosteric modulator activity and useful as an agent for the prophylaxis or treatment of Alzheimer's disease, schizophrenia, pain, sleep disorder, Parkinson's disease dementia, dementia with Lewy bodies, and the like. The present invention relates to a compound represented by the formula (I) or a salt thereof. wherein each symbol is as described in the specification, or a salt thereof.Type: ApplicationFiled: November 8, 2023Publication date: April 4, 2024Inventors: Masami YAMADA, Shinkichi SUZUKI, Takahiro SUGIMOTO, Minoru NAKAMURA, Hiroki SAKAMOTO, Makoto KAMATA
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Publication number: 20240105796Abstract: A semiconductor device includes an insulating layer, a semiconductor layer and a control electrode. The semiconductor layer is provided on the insulating layer and includes a first semiconductor region of a first conductivity type, a second semiconductor region of the first conductivity type and a third semiconductor region of a second conductivity type. The third semiconductor region is located between the first semiconductor region and the second semiconductor region. The first to third semiconductor regions are arranged in a first direction along an interface between the insulating layer and the semiconductor layer. The control electrode is provided on the semiconductor layer and includes first to third control parts arranged in the first direction. The first control part is located between the second control part and the third control part. The third semiconductor region is positioned between the insulating layer and the first control part.Type: ApplicationFiled: March 3, 2023Publication date: March 28, 2024Inventors: Mitsutoshi NAKAMURA, Masami NAGAOKA, Kazuya NISHIHORI, Keita MASUDA
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Patent number: 11193444Abstract: An actuator is energized to cause a valve body of a fuel injection valve to perform fuel injection. The actuator includes a driving body to drive to open and close the valve body. Boundary energization is performed that ends energization of the actuator at a timing when the driving body is moved in an opening direction of the valve body and is assumed to have reached an end of its movement range to measure a relationship between the energization time until the energization ends and the fuel injection amount. A correspondence relationship between the energization time of the actuator and the fuel injection amount is determined by using the measured relationship. An energization time corresponding to a target injection amount is obtained with reference to the determined correspondence relationship. The actuator is energized to cause the fuel injection valve to perform fuel injection.Type: GrantFiled: November 23, 2020Date of Patent: December 7, 2021Assignee: DENSO CORPORATIONInventor: Masami Nakamura
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Patent number: 11193445Abstract: A fuel pump pressure-feeds fuel to an accumulation container that accumulates high-pressure fuel. A fuel injection valve injects high-pressure fuel accumulated in the accumulation container to an internal combustion engine. A fuel pressure sensor detects a fuel pressure in the accumulation container. A fuel pressure acquisition unit acquires the fuel pressure detected with the fuel pressure sensor. A reference computation unit computes a required injection quantity and an injection start timing based on an operation state of the internal combustion engine at a predetermined reference computation timing, which is set for each combustion cycle of the internal combustion engine, and further to compute an injection time period based on a fuel pressure acquired by the fuel pressure acquisition unit at the reference computation timing. A correction unit corrects the injection time period based on the fuel pressure acquired by the fuel pressure acquisition unit at the injection start timing.Type: GrantFiled: April 22, 2020Date of Patent: December 7, 2021Assignee: DENSO CORPORATIONInventor: Masami Nakamura
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Publication number: 20210071613Abstract: An actuator is energized to cause a valve body of a fuel injection valve to perform fuel injection. The actuator includes a driving body to drive to open and close the valve body. Boundary energization is performed that ends energization of the actuator at a timing when the driving body is moved in an opening direction of the valve body and is assumed to have reached an end of its movement range to measure a relationship between the energization time until the energization ends and the fuel injection amount. A correspondence relationship between the energization time of the actuator and the fuel injection amount is determined by using the measured relationship. An energization time corresponding to a target injection amount is obtained with reference to the determined correspondence relationship. The actuator is energized to cause the fuel injection valve to perform fuel injection.Type: ApplicationFiled: November 23, 2020Publication date: March 11, 2021Inventor: Masami NAKAMURA
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Patent number: 10796710Abstract: A noise elimination device includes a first converter, a second converter, and a signal processing unit. The first converter is configured to convert an input signal input from a microphone into digital data to generate input digital data. The second converter is configured to convert an internal noise signal into digital data. The signal processing unit is configured to use, as reference data, digital data corresponding to an output signal output to a speaker and digital data having been converted by the second converter, and eliminate a component corresponding to the reference data from the input digital data.Type: GrantFiled: October 9, 2019Date of Patent: October 6, 2020Assignee: JVCKENWOOD CorporationInventor: Masami Nakamura
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Publication number: 20200248644Abstract: A fuel pump pressure-feeds fuel to an accumulation container that accumulates high-pressure fuel. A fuel injection valve injects high-pressure fuel accumulated in the accumulation container to an internal combustion engine. A fuel pressure sensor detects a fuel pressure in the accumulation container. A fuel pressure acquisition unit acquires the fuel pressure detected with the fuel pressure sensor. A reference computation unit computes a required injection quantity and an injection start timing based on an operation state of the internal combustion engine at a predetermined reference computation timing, which is set for each combustion cycle of the internal combustion engine, and further to compute an injection time period based on a fuel pressure acquired by the fuel pressure acquisition unit at the reference computation timing. A correction unit corrects the injection time period based on the fuel pressure acquired by the fuel pressure acquisition unit at the injection start timing.Type: ApplicationFiled: April 22, 2020Publication date: August 6, 2020Inventor: Masami NAKAMURA
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Publication number: 20200043510Abstract: A noise elimination device includes a first converter, a second converter, and a signal processing unit. The first converter is configured to convert an input signal input from a microphone into digital data to generate input digital data. The second converter is configured to convert an internal noise signal into digital data. The signal processing unit is configured to use, as reference data, digital data corresponding to an output signal output to a speaker and digital data having been converted by the second converter, and eliminate a component corresponding to the reference data from the input digital data.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Inventor: Masami Nakamura
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Patent number: 10347787Abstract: A conductive paste for forming a solar cell electrode, including: a conductive powder containing silver as a main component; glass frit; and an organic vehicle, wherein the glass frit contains tellurium glass frit having tellurium oxide as a network-forming component. The conductive paste of the present invention makes it possible to form a solar cell electrode having a low dependence on firing temperature without causing problems due to fire-through into the substrate, and to thereby obtain a solar cell having good solar cell characteristics.Type: GrantFiled: August 24, 2017Date of Patent: July 9, 2019Assignees: Shoei Chemical Inc., Heraeus Precious Metals North American Conshohocken LLCInventors: Masami Nakamura, Naoto Shindo, Tadashi Kanasaku
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Patent number: 10142756Abstract: A first level converter performs level conversion for a first digital signal into a second digital signal. A second level converter performs level conversion for a third digital signal into a fourth digital signal. An arithmetic unit generates a fifth digital signal obtained by subtracting the fourth digital signal from the second digital signal, and a sixth digital signal obtained by adding the first digital signal and the fourth digital signal to each other. A first DA converter performs DA conversion for the fifth digital signal into a first analog signal. A second DA converter performs DA conversion for the sixth digital signal into a second analog signal. An adder adds the first analog signal and the second analog signal to each other to generate a third analog signal.Type: GrantFiled: February 13, 2017Date of Patent: November 27, 2018Assignee: JVC KENWOOD CORPORATIONInventor: Masami Nakamura
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Patent number: 10084100Abstract: A solar cell element containing: a semiconductor substrate; an antireflection film disposed in a first region on one main surface of the semiconductor substrate; and a front surface electrode disposed in a second region on the one main surface of the semiconductor substrate and containing silver as a main component and a tellurium-based glass containing tellurium, tungsten, and bismuth. The solar cell element is manufactured by forming the antireflection film on the one main substrate surface; printing on the antireflection film a conductive paste containing a conductive powder mainly containing silver, a tellurium-based glass frit containing tellurium, tungsten, and bismuth, and an organic vehicle; and disposing the antireflection film in the first region and forming the front surface electrode in the second region, by firing the paste and eliminating the antireflection film positioned under the paste.Type: GrantFiled: October 4, 2011Date of Patent: September 25, 2018Assignees: SHOEI CHEMICAL INC., KYOCERA CORPORATIONInventors: Masami Nakamura, Naoto Shindo, Tadashi Kanasaku, Junichi Atobe
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Publication number: 20170352773Abstract: A conductive paste for forming a solar cell electrode, including: a conductive powder containing silver as a main component; glass frit; and an organic vehicle, wherein the glass frit contains tellurium glass frit having tellurium oxide as a network-forming component. The conductive paste of the present invention makes it possible to form a solar cell electrode having a low dependence on firing temperature without causing problems due to fire-through into the substrate, and to thereby obtain a solar cell having good solar cell characteristics.Type: ApplicationFiled: August 24, 2017Publication date: December 7, 2017Applicants: SHOEI CHEMICAL INC., HERAEUS PRECIOUS METALS NORTH AMERICA CONSHOHOCKEN LLCInventors: Masami NAKAMURA, Naoto SHINDO, Tadashi KANASAKU
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Publication number: 20170156014Abstract: A first level converter performs level conversion for a first digital signal into a second digital signal. A second level converter performs level conversion for a third digital signal into a fourth digital signal. An arithmetic unit generates a fifth digital signal obtained by subtracting the fourth digital signal from the second digital signal, and a sixth digital signal obtained by adding the first digital signal and the fourth digital signal to each other. A first DA converter performs DA conversion for the fifth digital signal into a first analog signal. A second DA converter performs DA conversion for the sixth digital signal into a second analog signal. An adder adds the first analog signal and the second analog signal to each other to generate a third analog signal.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Inventor: Masami NAKAMURA
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Publication number: 20160192071Abstract: With an acoustic device according to an embodiment, an acquiring unit acquires a frequency characteristic of external noise caused by road noise or the like and a converting unit converts a frequency characteristic of the acquired external noise to an auditory sensitivity characteristic in accordance with a frequency characteristic of auditory sensitivity. In the acoustic device, a setting unit sets a parameter that is in accordance with an auditory sensitivity characteristic in an equalizer. The equalizer corrects, in accordance with the parameter that is set by the setting unit, a frequency characteristic of an audio signal that is played back by a playback unit.Type: ApplicationFiled: March 10, 2016Publication date: June 30, 2016Inventor: Masami Nakamura
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Patent number: 9214162Abstract: Sequential digital audio signals are received to calculate a difference between each currently sampled digital audio signal and another digital audio signal sampled at one sampling period before each currently sampled digital audio signal. Differences for the sequential digital audio signals are stored. The number of digital audio signals consecutively clipped is counted in the received sequential digital audio signals. A specific difference is retrieved, from the stored differences, for a digital audio signal sampled at a specific number of sampling periods before each clipped digital audio signal. The specific number of sampling periods is determined based on the counted number of digital audio signals consecutively clipped. Each clipped digital audio signal is corrected based on the specific difference.Type: GrantFiled: March 2, 2012Date of Patent: December 15, 2015Assignee: JVC KENWOOD CorporationInventor: Masami Nakamura
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Publication number: 20150122326Abstract: A solar cell device including an electrode formed by applying a conductive paste containing at least a conductive powder, glass frit and an organic vehicle onto a semiconductor substrate provided with a silicon nitride layer on a surface thereof and firing the applied conductive paste, wherein the electrode has a structure with a front electrode layer containing silver as a main component, a glass layer containing tellurium glass as a main component, and a silicon oxide layer containing plural silver particles precipitated by the firing. The solar cell device is provided with an electrode formed using a conductive paste not containing lead glass and has good solar cell characteristics.Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Inventors: Yuji AKIMOTO, Masami NAKAMURA, Naoto SHINDO, Tadashi KANASAKU
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Patent number: 8989405Abstract: A first differential value is acquired between first current data and first previous data in an i number (i being a natural number) of sampling periods before the current data. A second differential value is acquired between second current data and second previous data in a j number (j being a natural number) of sampling periods before the current data. Both first data and both second data are of a first and a second digital audio signal, respectively, having a sound level of a digital stereo audio signal in the left and right channels, respectively. A first and a second correction coefficient are acquired by adding the first and second differential values at a first and a second ratio, respectively. The first signal is corrected by multiplying the first signal by the first correction coefficient. The second signal is corrected by multiplying the second signal by the second correction coefficient.Type: GrantFiled: January 9, 2012Date of Patent: March 24, 2015Assignee: JVC KENWOOD CorporationInventor: Masami Nakamura
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Patent number: 8962981Abstract: A solar cell device including an electrode formed by applying a conductive paste containing at least a conductive powder, glass frit and an organic vehicle onto a semiconductor substrate provided with a silicon nitride layer on a surface thereof and firing the applied conductive paste, wherein the electrode has a structure with a front electrode layer containing silver as a main component, a glass layer containing tellurium glass as a main component, and a silicon oxide layer containing plural silver particles precipitated by the firing. The solar cell device is provided with an electrode formed using a conductive paste not containing lead glass and has good solar cell characteristics.Type: GrantFiled: October 20, 2010Date of Patent: February 24, 2015Assignee: Shoei Chemical Inc.Inventors: Yuji Akimoto, Masami Nakamura, Naoto Shindo, Tadashi Kanasaku
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Patent number: 8854238Abstract: An asynchronous sampling frequency conversion device includes: a storage unit configured to store input digital signals; a data specifying unit configured to specify first data and second data based on a ratio of a sampling frequency of the input digital signal to a sampling frequency of an output digital signal, the first data being sampled at a sampling timing immediately before an ith (where i is a natural number) sampling timing of the output digital signal among the input digital signals stored in the storage unit, the second data being sampled at the sampling timing immediately after the ith sampling timing of the output digital signal; and an output data value calculator configured to calculate a value of ith data of the output digital signal based on the first data and the second data specified by the data specifying unit and the ratio.Type: GrantFiled: January 25, 2013Date of Patent: October 7, 2014Assignee: JVC KENWOOD CorporationInventor: Masami Nakamura
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Publication number: 20140004649Abstract: A conductive paste for forming a solar cell electrode, including: a conductive powder comprising silver as a main component; glass frit; and an organic vehicle, wherein the glass frit contains tellurium glass frit having tellurium oxide as a network-forming component. The conductive paste of the present invention makes it possible to form a solar cell electrode having a low dependence on firing temperature without causing problems due to fire-through into the substrate, and to thereby obtain a solar cell having good solar cell characteristics.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Inventors: Masami NAKAMURA, Naoto SHINDO, Tadashi KANASAKU