Patents by Inventor Masaki Izawa
Masaki Izawa 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: 20240060058Abstract: An object of the present invention is to provide a novel modified thermostable DNA polymerase having a reverse transcription activity. According to the present invention, there is provided a DNA polymerase having an activity to catalyze a reverse transcription reaction in the presence of Mg2+ and comprising an amino acid sequence having an identity of 90% or higher to the amino acid sequence of SEQ ID NO: 5 and amino acid substitutions at both positions 744 and 745 with positively charged amino acids.Type: ApplicationFiled: December 24, 2021Publication date: February 22, 2024Applicant: NIPPON GENE CO., LTD.Inventors: Shizuko ASANO, Ryota KOKUTANI, Yasutaka MINEGISHI, Fuminori MAKI, Masaki IZAWA, Yuko YONEDA
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Patent number: 11548344Abstract: It is an object of the present invention to improve accuracy in estimation of a state of a vehicle in order to achieve excellent ride comfort. An ECU (600) includes a reference vehicle model computation section (1100), which is configured to calculate a reference output by carrying out computation with respect to at least one of a plurality of state amounts in a planar direction and at least one of a plurality of state amounts in an up-down direction in an inseparable manner.Type: GrantFiled: October 14, 2019Date of Patent: January 10, 2023Assignee: HITACHI ASTEMO, LTD.Inventors: Yuichiro Minakuchi, Masaki Izawa
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Patent number: 11318804Abstract: It is an object of the present invention to suitably estimate a state of a vehicle. A vehicle state estimation section (1200) includes: a main computation section (1210) configured to carry out linear computation with respect to a state amount related to a state of a vehicle; and a tire model computation section (1240) configured to carry out nonlinear computation with direct or indirect reference to at least part of a result of the linear computation carried out by the main computation section (1210).Type: GrantFiled: October 14, 2019Date of Patent: May 3, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Yuichiro Minakuchi, Masaki Izawa
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Publication number: 20210201034Abstract: Realized is a technique for estimating a state quantity of a vehicle, which technique is applicable to estimation of a vehicle weight and allows an increase in accuracy and speed of the estimation. A state quantity estimating device includes a data storing section (101), a predictive quantity computing section (102), an obtaining section (107), a Kalman gain computing section (103), an estimated quantity computing section (104) which calculates an estimated state quantity and estimated covariance, and a process noise covariance correcting section (106) which corrects process noise covariance. The estimated state quantity, the estimated covariance, and the process noise covariance, each of which has been calculated or corrected, are written in the data storing section (101) as a state quantity, state covariance, and process noise covariance, respectively, and are used in a next computation for estimating a state quantity.Type: ApplicationFiled: March 12, 2021Publication date: July 1, 2021Inventors: Masaki IZAWA, Shubham GUPTA
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Patent number: 10703162Abstract: A suspension control system allows a state variable of a vehicle used for the damper damping force control to be computed at a high precision without regards to the caster angle given to the suspension geometry. A suspension control system for a vehicle provided with a variable damper that can adjust a damping force according to an input signal comprises a wheel rotational speed sensor for detecting a wheel rotational speed, a gain circuit for computing the unsprung load of each wheel according to the wheel rotational speed variation detected by the wheel speed sensor, a single wheel model computing unit for computing the sprung velocity and the stroke speed by inputting the unsprung load to a single wheel model representing the behavior of the vehicle, and a damper control unit for controlling a damping force of the variable damper according to the computed sprung velocity and stroke speed.Type: GrantFiled: June 20, 2013Date of Patent: July 7, 2020Assignee: Honda Motor Co., Ltd.Inventors: Ryoma Kanda, Masaki Izawa
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Publication number: 20200039314Abstract: It is an object of the present invention to suitably estimate a state of a vehicle. A vehicle state estimation section (1200) includes: a main computation section (1210) configured to carry out linear computation with respect to a state amount related to a state of a vehicle; and a tire model computation section (1240) configured to carry out nonlinear computation with direct or indirect reference to at least part of a result of the linear computation carried out by the main computation section (1210).Type: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Inventors: Yuichiro MINAKUCHI, Masaki IZAWA
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Publication number: 20200039315Abstract: It is an object of the present invention to improve accuracy in estimation of a state of a vehicle in order to achieve excellent ride comfort. An ECU (600) includes a reference vehicle model computation section (1100), which is configured to calculate a reference output by carrying out computation with respect to at least one of a plurality of state amounts in a planar direction and at least one of a plurality of state amounts in an up-down direction in an inseparable manner.Type: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Inventors: Yuichiro MINAKUCHI, Masaki Izawa
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Patent number: 10442345Abstract: Disclosed is a vehicular lamp including a light source unit equipped with a plurality of LEDs having different optical axes; and a reflector configured to reflect light emitted from the plurality of LEDs. The light source unit includes a base including a plurality of board mounting surfaces, in which the base is formed to be foldable around an axis formed between each two adjacent board mounting surfaces as a boundary; and a plurality of printed circuit boards attached to the plurality of board mounting surfaces, respectively, in which each printed circuit board has a light source mounted on a surface opposite to the board mounting surface thereof.Type: GrantFiled: April 8, 2015Date of Patent: October 15, 2019Assignee: Koito Manufacturing Co., Ltd.Inventors: Makoto Ito, Takayuki Machida, Masaki Izawa, Masayoshi Kuroda
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Patent number: 9958124Abstract: Disclosed is a vehicular lamp. The vehicular lamp includes an LED, a light guide guiding light emitted from the LED, and a light transmissive cover disposed in front of the light guide. The light guide includes a first end surface, a second end surface, a rear side surface with a plurality of steps, and a front side surface. A notched portion is formed on the front side surface. A notched surface is formed in the notched portion to cross the extension direction of the light guide. The steps reflect first light toward the front side surface and second light toward the notched surface. The light transmissive cover includes first and second emission portions causing the first and second lights to pass therethrough, respectively. An angle formed by the notched surface and the incidence surface of the second emission portion is within a range of 0 to 45 degrees.Type: GrantFiled: March 8, 2016Date of Patent: May 1, 2018Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Masaki Izawa
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Patent number: 9871904Abstract: An information transmission device includes an information transmission unit configured to tactilely transmit text information, and at least one processor configured to control the information transmission unit. The information transmission unit includes a plurality of stimulation applying units configured to apply tactile stimulation to a touched part of a human body. The at least one processor is configured to control the information transmission unit such that stimulation applying units selected for forming a letter from among the plurality of stimulation applying units produce the tactile stimulation and the tactile stimulation produced by each of the selected stimulation applying units varies in a predetermined order.Type: GrantFiled: May 18, 2016Date of Patent: January 16, 2018Assignee: KYOCERA CORPORATIONInventor: Masaki Izawa
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Publication number: 20160312972Abstract: Disclosed is a vehicle lamp. In the vehicle lamp, a light emitting surface of a light transmitting member includes five light emitting areas and one light emitting area that are arranged to be positioned at the front side toward the outer periphery. Accordingly, the light from the light source may be emitted toward the front side without partially and extremely increasing the thickness of the light transmitting member. The five light emitting areas are divided into multiple rectangular shapes when viewed from the front side of the lamp, and each of the light emitting areas is divided into a plurality of light emitting elements. Accordingly, the mutual boundaries of the respective light emitting elements may be set in straight line shapes when viewed from the front side of the lamp so that the accuracy in diffusion-controlling the light emitted from each of the light emitting elements is improved.Type: ApplicationFiled: April 11, 2016Publication date: October 27, 2016Inventor: Masaki Izawa
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Publication number: 20160273728Abstract: Disclosed is a vehicular lamp. The vehicular lamp includes an LED, a light guide guiding light emitted from the LED, and a light transmissive cover disposed in front of the light guide. The light guide includes a first end surface, a second end surface, a rear side surface with a plurality of steps, and a front side surface. A notched portion is formed on the front side surface. A notched surface is formed in the notched portion to cross the extension direction of the light guide. The steps reflect first light toward the front side surface and second light toward the notched surface. The light transmissive cover includes first and second emission portions causing the first and second lights to pass therethrough, respectively. An angle formed by the notched surface and the incidence surface of the second emission portion is within a range of 0 to 45 degrees.Type: ApplicationFiled: March 8, 2016Publication date: September 22, 2016Inventor: Masaki Izawa
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Publication number: 20160269528Abstract: An information transmission device includes an information transmission unit configured to tactilely transmit text information, and at least one processor configured to control the information transmission unit. The information transmission unit includes a plurality of stimulation applying units configured to apply tactile stimulation to a touched part of a human body. The at least one processor is configured to control the information transmission unit such that stimulation applying units selected for forming a letter from among the plurality of stimulation applying units produce the tactile stimulation and the tactile stimulation produced by each of the selected stimulation applying units varies in a predetermined order.Type: ApplicationFiled: May 18, 2016Publication date: September 15, 2016Inventor: Masaki IZAWA
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Publication number: 20160053309Abstract: By establishing a simple method for extracting a nucleic acid from a human specimen, and using the LAMP method, which is an isothermal gene amplification method showing superior quickness and convenience, with a concept of measurement different from the conventional ones, there is established a test method including steps up to detection with a measurement apparatus.Type: ApplicationFiled: March 26, 2014Publication date: February 25, 2016Applicant: NIPPON GENE CO., LTD.Inventors: Masakazu Kitani, Fuminori Maki, Masaki Izawa, Shinji Kanayama, Yuko Yoneda
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Publication number: 20150298599Abstract: Disclosed is a vehicular lamp including a light source unit equipped with a plurality of LEDs having different optical axes; and a reflector configured to reflect light emitted from the plurality of LEDs. The light source unit includes a base including a plurality of board mounting surfaces, in which the base is formed to be foldable around an axis formed between each two adjacent board mounting surfaces as a boundary; and a plurality of printed circuit boards attached to the plurality of board mounting surfaces, respectively, in which each printed circuit board has a light source mounted on a surface opposite to the board mounting surface thereof.Type: ApplicationFiled: April 8, 2015Publication date: October 22, 2015Inventors: Makoto Ito, Takayuki Machida, Masaki Izawa, Masayoshi Kuroda
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Publication number: 20150290995Abstract: A suspension control system allows a state variable of a vehicle used for the damper damping force control to be computed at a high precision without regards to the caster angle given to the suspension geometry. A suspension control system for a vehicle provided with a variable damper that can adjust a damping force according to an input signal comprises a wheel rotational speed sensor for detecting a wheel rotational speed, a gain circuit for computing the unsprung load of each wheel according to the wheel rotational speed variation detected by the wheel speed sensor, a single wheel model computing unit for computing the sprung velocity and the stroke speed by inputting the unsprung load to a single wheel model representing the behavior of the vehicle, and a damper control unit for controlling a damping force of the variable damper according to the computed sprung velocity and stroke speed.Type: ApplicationFiled: June 20, 2013Publication date: October 15, 2015Inventors: Ryoma Kanda, Masaki Izawa
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Publication number: 20130260836Abstract: A mobile electronic device and methods are disclosed. A display module is disposed on a first surface of a housing. A sound output module generates vibrations based on received sounds and transfers the vibrations to a second surface of the housing opposed to the first surface. A touch detection module detects a touch operation performed by a user on the display module. An operation determination module determines the kind of the touch operation during the telephone communications with another device. A function execution module executes a function assigned to the determined kind of the touch operation. The function relates to the telephone communications.Type: ApplicationFiled: March 18, 2013Publication date: October 3, 2013Applicant: KYOCERA CORPORATIONInventors: Hiroshi TSUNODA, Masaki IZAWA, Takashi OSANAI
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Patent number: 8351929Abstract: A mobile station is provided. The mobile station includes: a wireless communication unit which establishes wireless communication with a base station; a storage unit which stores a roaming list used when roaming to a mobile communication network other than a specific mobile communication network; a communication network selecting unit which selects a mobile communication network with which the mobile station is capable of communicating wirelessly, by using the roaming list; and an update unit which requests update of the roaming list through the wireless communication unit at a time of starting the mobile station, and updates the roaming list stored in the storage unit if changed.Type: GrantFiled: June 24, 2009Date of Patent: January 8, 2013Assignee: KYOCERA CorporationInventors: Masaki Izawa, Keiichi Hirata
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Patent number: 8311704Abstract: A control apparatus of a variable damping force damper used to suspend a vehicle body of a vehicle is configured to set a target control quantity of the variable damping force damper based on a plurality of dynamic state quantities of the vehicle, wherein the plurality of dynamic state quantities include a vertical dynamic state quantity of the vehicle.Type: GrantFiled: March 19, 2008Date of Patent: November 13, 2012Assignee: Honda Motor Co., Ltd.Inventors: Takafumi Kato, Toshimitsu Kaji, Masaki Izawa
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Patent number: 8165749Abstract: A control system for an adjustable damping force damper of a suspension apparatus of a vehicle, includes a lateral acceleration detecting unit detecting a lateral acceleration of the vehicle at a gravity point thereof, a yaw rate detecting unit detecting a yaw rate of the vehicle and a control unit controlling a damping force of the damper. The control unit calculates a first target damping force based on an output of the lateral acceleration detecting unit, calculates a second target damping force based on a lateral acceleration at an axel position which is estimated by an output of the yaw rate detecting unit, compares an absolute value of the first target damping force with that of the second target damping force and sets a target controlling value of the damping force in accordance with the first or second target damping force which has a larger absolute value.Type: GrantFiled: March 29, 2006Date of Patent: April 24, 2012Assignee: Honda Motor Co., LtdInventors: Masaki Izawa, Takafumi Kato