Patents by Inventor Masaaki Morikawa
Masaaki Morikawa 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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Patent number: 11101780Abstract: According to an embodiment, a comparator circuit includes first and second PMOS transistors that compose a differential pair, a first switching transistor with a main current path that is connected between an input terminal and a gate of the first PMOS transistor, a voltage source that applies a reference voltage to a gate of the second PMOS transistor, and a first bias circuit that applies a first bias voltage to a control electrode of the first switching transistor.Type: GrantFiled: July 23, 2019Date of Patent: August 24, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventor: Masaaki Morikawa
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Publication number: 20200244238Abstract: According to an embodiment, a comparator circuit includes first and second PMOS transistors that compose a differential pair, a first switching transistor with a main current path that is connected between an input terminal and a gate of the first PMOS transistor, a voltage source that applies a reference voltage to a gate of the second PMOS transistor, and a first bias circuit that applies a first bias voltage to a control electrode of the first switching transistor.Type: ApplicationFiled: July 23, 2019Publication date: July 30, 2020Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventor: Masaaki MORIKAWA
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Patent number: 9515503Abstract: A battery monitoring system includes a clock input terminal, a data input terminal, a communication control circuit receiving the clock signal and the data signal from the clock input terminal and the data input terminal, respectively, a main power regulator controlled by the communication control circuit to supply and stop supplying main power, a charge circuit charged by the clock signal, and a sub power regulator started by a charge voltage of the charge circuit to supply a sub power to the communication control circuit. The communication control circuit controls the main power regulator with the data signal when the sub power is received from the sub power regulator.Type: GrantFiled: March 2, 2014Date of Patent: December 6, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Masaaki Morikawa
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Patent number: 9101911Abstract: Provided is a method for producing a functional material, including the steps of: bringing a polyvalent metal cation aqueous solution into contact with a base material; bringing a polyanion aqueous solution containing a functional component into contact with the base material previously in contact with the polyvalent metal cation aqueous solution to bond the polyvalent metal cations and the polyanions to each other, and thereby forming an insoluble compound containing the functional component; and drying the base material including the insoluble compound.Type: GrantFiled: April 15, 2013Date of Patent: August 11, 2015Assignees: Unicharm Corporation, Ehime Prefectural GovernmentInventors: Hideaki Ichiura, Masaaki Morikawa, Masaki Takahashi, Noriyoshi Nishida, Takamitsu Igaue, Takayoshi Konishi
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Publication number: 20150077059Abstract: A battery monitoring system includes a clock input terminal, a data input terminal, a communication control circuit receiving the clock signal and the data signal from the clock input terminal and the data input terminal, respectively, a main power regulator controlled by the communication control circuit to supply and stop supplying main power, a charge circuit charged by the clock signal, and a sub power regulator started by a charge voltage of the charge circuit to supply a sub power to the communication control circuit. The communication control circuit controls the main power regulator with the data signal when the sub power is received from the sub power regulator.Type: ApplicationFiled: March 2, 2014Publication date: March 19, 2015Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Masaaki MORIKAWA
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Patent number: 8823444Abstract: A reference voltage generating circuit comprises a pair of variable resistors connected to a pair of bipolar transistors. A differential amplifier amplifies the band gap voltage difference between the bipolar transistors and outputs a reference voltage to an output terminal. An output stage resistor is connected to the output terminal and a resistance dividing circuit. The generating circuit includes temperature compensating circuits that receive tap voltages from resistance dividing circuit and a current proportional to the temperature, then output correction currents. The generating circuit additionally includes a current mirror circuit that outputs a mirror current depending on each correction current. The reference voltage generating circuit thus corrects the temperature dependence of the reference voltage.Type: GrantFiled: March 8, 2013Date of Patent: September 2, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Ryuji Fujime, Masaaki Morikawa
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Publication number: 20140084989Abstract: A reference voltage generating circuit comprises a pair of variable resistors connected to a pair of bipolar transistors. A differential amplifier amplifies the band gap voltage difference between the bipolar transistors and outputs a reference voltage to an output terminal. An output stage resistor is connected to the output terminal and a resistance dividing circuit. The generating circuit includes temperature compensating circuits that receive tap voltages from resistance dividing circuit and a current proportional to the temperature, then output correction currents. The generating circuit additionally includes a current mirror circuit that outputs a mirror current depending on each correction current. The reference voltage generating circuit thus corrects the temperature dependence of the reference voltage.Type: ApplicationFiled: March 8, 2013Publication date: March 27, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Ryuji FUJIME, Masaaki MORIKAWA
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Publication number: 20130330990Abstract: Provided is a method for producing a functional material, including the steps of: bringing a polyvalent metal cation aqueous solution into contact with a base material; bringing a polyanion aqueous solution containing a functional component into contact with the base material previously in contact with the polyvalent metal cation aqueous solution to bond the polyvalent metal cations and the polyanions to each other, and thereby forming an insoluble compound containing the functional component; and drying the base material including the insoluble compound.Type: ApplicationFiled: April 15, 2013Publication date: December 12, 2013Inventors: Hideaki ICHIURA, Masaaki MORIKAWA, Masaki TAKAHASHI, Noriyoshi NISHIDA, Takamitsu IGAUE, Takayoshi Konishi
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Patent number: 8484792Abstract: A cleaning tool includes a cleaning unit including a water-disintegrable cleaning substrate which is dispersible in water, and which holds a microcapsule encapsulating a cleaning component.Type: GrantFiled: September 24, 2008Date of Patent: July 16, 2013Assignee: Unicharm CorporationInventors: Takayoshi Konishi, Hideaki Ichiura, Masaaki Morikawa, Masaki Takahashi, Noriyoshi Nishida
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Patent number: 8440731Abstract: Provided is a method for producing a functional material, including the steps of: bringing a polyvalent metal cation aqueous solution into contact with a base material; bringing a polyanion aqueous solution containing a functional component into contact with the base material previously in contact with the polyvalent metal cation aqueous solution to bond the polyvalent metal cations and the polyanions to each other, and thereby forming an insoluble compound containing the functional component; and drying the base material including the insoluble compound.Type: GrantFiled: January 22, 2008Date of Patent: May 14, 2013Assignee: Unicharm CorporationInventors: Hideaki Ichiura, Masaaki Morikawa, Masaki Takahashi, Noriyoshi Nishida, Takamitsu Igaue, Takayoshi Konishi
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Publication number: 20130026994Abstract: According to one embodiment, a battery cell monitoring circuit detects an abnormity in the cell balancing and terminals of each battery cell. One end of the first switch is connected to the first cell balancing terminal, and the other end of the first switch is connected to the second cell balancing terminal, so that the first switch is turned on/off based on a first control signal to perform cell balancing. The current source and the second switch are arranged in parallel with the first switch, and are connected in series between the one end and the other end of the first switch. The current source supplies a current. The second switch is turned on/off based on a second control signal. The first detection unit receives a first cell voltage measuring terminal voltage and a first cell balancing terminal voltage, and detects a terminal open state. The second detection unit receives a second cell voltage measuring terminal voltage and a second cell balancing terminal voltage, and detects a terminal open state.Type: ApplicationFiled: March 15, 2012Publication date: January 31, 2013Applicant: Kabushiki Kaisha ToshibaInventor: Masaaki MORIKAWA
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Patent number: 7896410Abstract: Thickness T in a vehicle longitudinal direction of a first energy-absorbing member 18, which is disposed at a front portion of a vehicle 10, tapers from a middle portion of a vehicle lateral direction (thickness Tc) toward an end portion (thickness Ts). For at least one (preferably both) of the first energy-absorbing member 18 and a second energy-absorbing member, rigidity in the vehicle longitudinal direction is made smaller from the vehicle lateral direction end portion toward the middle. Hence, loads acting on an impact body 102 when the vehicle 10 impacts with the impact body 102 are equalized in the vehicle lateral direction.Type: GrantFiled: June 6, 2006Date of Patent: March 1, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masaaki Morikawa, Osamu Nagasaka
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Publication number: 20110027844Abstract: A method for conveniently and efficiently producing quinones, and particularly menaquinone, from a microorganism is provided. The present invention relates to a method for producing quinones, comprising culturing a microorganism that produces quinones in the presence of a porous carrier.Type: ApplicationFiled: March 3, 2010Publication date: February 3, 2011Applicant: NISSHIN PHARMA INC.Inventors: Masaaki Morikawa, Yasushi Oogo, Yoshio Suzuki
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Publication number: 20100306937Abstract: A cleaning tool includes a cleaning unit including a water-disintegrable cleaning substrate which is dispersible in water, and which holds a microcapsule encapsulating a cleaning component.Type: ApplicationFiled: September 24, 2008Publication date: December 9, 2010Inventors: Takayoshi Konishi, Hideaki Ichiura, Masaaki Morikawa, Masaki Takahashi, Noriyoshi Nishida
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Publication number: 20100144909Abstract: Provided is a method for producing a functional material, including the steps of: bringing a polyvalent metal cation aqueous solution into contact with a base material; bringing a polyanion aqueous solution containing a functional component into contact with the base material previously in contact with the polyvalent metal cation aqueous solution to bond the polyvalent metal cations and the polyanions to each other, and thereby forming an insoluble compound containing the functional component; and drying the base material including the insoluble compound.Type: ApplicationFiled: January 22, 2008Publication date: June 10, 2010Inventors: Hideaki Ichiura, Masaaki Morikawa, Masaki Takahashi, Noriyoshi Nishida, Takamitsu Igaue, Takayoshi Konishi
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Publication number: 20090267367Abstract: Thickness T in a vehicle longitudinal direction of a first energy-absorbing member 18, which is disposed at a front portion of a vehicle 10, tapers from a middle portion of a vehicle lateral direction (thickness Tc) toward an end portion (thickness Ts). For at least one (preferably both) of the first energy-absorbing member 18 and a second energy-absorbing member, rigidity in the vehicle longitudinal direction is made smaller from the vehicle lateral direction end portion toward the middle. Hence, loads acting on an impact body 102 when the vehicle 10 impacts with the impact body 102 are equalized in the vehicle lateral direction.Type: ApplicationFiled: June 6, 2006Publication date: October 29, 2009Inventors: Masaaki Morikawa, Osamu Nagasaka
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Patent number: 7481488Abstract: A vehicle hood structure of the present invention has: a hood outer panel structuring a vehicle body outer side surface of a hood; a hood inner panel disposed along an entire region of a reverse surface of the hood outer panel, a cross-sectional configuration of the hood inner panel as seen from a vehicle longitudinal direction being a wavy configuration; and shelf portions formed along the vehicle longitudinal direction at side wall portions of the wavy cross-sectional configuration, wherein the cross-sectional configuration of a wavy configuration, of the hood inner panel, is formed along the vehicle longitudinal direction.Type: GrantFiled: September 22, 2004Date of Patent: January 27, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ikeda, Masaaki Morikawa, Hideki Ishitobi
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Publication number: 20080272618Abstract: A vehicle hood structure of the present invention has: a hood outer panel structuring a vehicle body outer side surface of a hood; a hood inner panel disposed along an entire region of a reverse surface of the hood outer panel, a cross-sectional configuration of the hood inner panel as seen from a vehicle longitudinal direction being a wavy configuration; and shelf portions formed along the vehicle longitudinal direction at side wall portions of the wavy cross-sectional configuration, wherein the cross-sectional configuration of a wavy configuration, of the hood inner panel, is formed along the vehicle longitudinal direction.Type: ApplicationFiled: June 30, 2008Publication date: November 6, 2008Inventors: Koki Ikeda, Masaaki Morikawa, Hideki Ishitobi
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Patent number: 7425032Abstract: A seal structure includes a frame arranged on an outer periphery of a window portion of a vehicle; a division bar which is connected to the frame by tightening and divides the window portion; a seal member which provides a seal between a vehicle outer side and a vehicle inner side, between the frame and the division bar; and a transmitting portion which transmits a tightening force applied to the frame and the division bar to the seal member.Type: GrantFiled: June 27, 2006Date of Patent: September 16, 2008Assignees: Toyota Jidosha Kabushiki Kaisha, VTEC Co., Ltd.Inventors: Masaaki Morikawa, Yasuaki Kawakami
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Patent number: 7322522Abstract: The present invention provides identification functional paper which allows secure measurement of a change in signal caused by a magnetic material and excels in waveform reproducibility when measuring a single specimen two or more times, and an identification card including the identification functional paper. The identification functional paper includes a magnetized fiber obtained by filling the fiber inner cavity with a magnetic material, and the identification card includes the identification functional paper.Type: GrantFiled: November 17, 2004Date of Patent: January 29, 2008Assignees: Lintec Corporation, Ehime Prefectural GovernmentInventors: Katsuhisa Fujiwara, Masaaki Morikawa, Satoshi Yamamoto, Kousaku Nagashima, Taiga Matsushita, Tatsuo Senba