Patents by Inventor Yuji Saito
Yuji Saito 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: 20240248085Abstract: Disclosed are a norovirus detection method and a device for the detection that enable detection of the major norovirus epidemic strains, GII.2 and GII.4, with high sensitivity. The immunoassay of norovirus utilizes the antigen-antibody reaction between norovirus in a sample and an antibody or an antigen-binding fragment thereof that recognizes the shell domain of the norovirus capsid. The novel immunoassay of norovirus and immunoassay device therefor were provided, which enable detection of GII.2 and GII.4 noroviruses with high sensitivity.Type: ApplicationFiled: May 20, 2022Publication date: July 25, 2024Applicant: Denka Company LimitedInventors: Yuji SAITO, Koji HIRAOKA, Shinya OGASAWARA
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Publication number: 20240244754Abstract: A circuit device includes: a heat sink having an upper surface orthogonal to a first direction; a plurality of first partition plates attached to the upper surface and extending in a second direction orthogonal to the first direction; a plurality of second partition plates attached to the upper surface and extending in a third direction orthogonal to the first direction and the second direction; a circuit component; a substrate electrically connected to the circuit component; and a first heat transfer member. The circuit component is housed in a space surrounded by two adjacent first partition plates, two adjacent second partition plates, and the upper surface. The first heat transfer member is disposed between the first partition plate and the circuit component.Type: ApplicationFiled: June 14, 2022Publication date: July 18, 2024Applicant: Mitsubishi Electric CorporationInventors: Yoshimichi SAITO, Yoshikazu TSUNODA, Kenta FUJII, Takashi KUMAGAI, Tomohito FUKUDA, Yuji SHIRAKATA
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Publication number: 20240241122Abstract: Disclosed is an anti-norovirus antibody that reacts with noroviruses of many genotypes and can collectively detect the noroviruses. The anti-norovirus antibody or an antigen-binding fragment thereof undergoes antigen-antibody reaction with the peptides composed of the amino acid sequences of SEQ ID NO: 1 and SEQ ID NO: 2, respectively. The anti-norovirus antibody, which can broadly bind to noroviruses and detect a wide range of human noroviruses with high specificity and sensitivity, and a norovirus immunoassay and a norovirus immunoassay device, both using the anti-norovirus antibody, are provided.Type: ApplicationFiled: May 20, 2022Publication date: July 18, 2024Applicant: Denka Company LimitedInventors: Yuji SAITO, Koji HIRAOKA, Shinya OGASAWARA
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Publication number: 20240230649Abstract: Disclosed is an anti-norovirus antibody that reacts with noroviruses of many genotypes and can collectively detect the noroviruses. The anti-norovirus antibody or an antigen-binding fragment thereof undergoes antigen-antibody reaction with the peptides composed of the amino acid sequences of SEQ ID NO: 1 and SEQ ID NO: 2, respectively. The anti-norovirus antibody, which can broadly bind to noroviruses and detect a wide range of human noroviruses with high specificity and sensitivity, and a norovirus immunoassay and a norovirus immunoassay device, both using the anti-norovirus antibody, are provided.Type: ApplicationFiled: May 20, 2022Publication date: July 11, 2024Applicant: Denka Company LimitedInventors: Yuji SAITO, Koji HIRAOKA, Shinya OGASAWARA
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Publication number: 20240236565Abstract: A controller calculates individual parameters, including nonlinear parameters of a speaker model, based on a measured displacement of a vibration system of a speaker. A sound generator outputs an audio signal, and an output flattening filter adjusts gains of individual bands of an audio signal so that a frequency characteristic of a volume of sound output by the speaker is flattened in accordance with a speaker model obtained by linearizing calculated parameters and outputs a resultant audio signal. A nonlinear inverse filter corrects the resultant audio signal by signal processing adapted to the gains of the output flattening filter so that the nonlinear distortion of the speaker is suppressed in accordance with the speaker model including the nonlinear parameters and outputs the corrected audio signal as an output audio signal to the speaker via an amplifier.Type: ApplicationFiled: October 4, 2023Publication date: July 11, 2024Applicant: Alps Alpine Co., LTD.Inventor: Yuji SAITO
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Patent number: 12035115Abstract: In a speaker distortion correction device, an input signal passes through a nonlinear-portion correction filter and is input into a linear inverse filter. An output signal from the linear inverse filter is output into a speaker through an amplifier. For the nonlinear-portion correction filter, transfer characteristics (filter coefficients) are set that eliminate distortion due to nonlinear characteristics of the speaker. With a difference, as an error, between vibration of the speaker without distortion relative to an input signal and vibration of a vibration system of the speaker measured by a vibration measurement unit, an adaptive-algorithm execution unit performs an adaptive operation that adaptively updates filter coefficients of the linear inverse filter.Type: GrantFiled: July 8, 2022Date of Patent: July 9, 2024Assignee: ALPS ALPINE CO., LTD.Inventors: Yuji Saito, Hiroki Toita, Hiroyuki Taguchi, Ryosuke Tachi, Tatsuya Mashiko
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Publication number: 20240187793Abstract: A magnetic circuit section having a main magnetic gap and sub-magnetic gaps is used. A vibrator is vibrated by an electromagnetic force generated by a voice current, which flows through a voice coil and a magnetic flux crossing the main magnetic gap. When the voice coil approaches or enters a sub-magnetic gap, the voice current which flows through the voice coil is reversed, temporarily cut-off or attenuated.Type: ApplicationFiled: November 27, 2023Publication date: June 6, 2024Applicant: Alps Alpine Co., Ltd.Inventors: Ryo Ito, Yuji Saito, Katsuhiko Egami, Hiroki Toita
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Patent number: 11970015Abstract: A printer configured to print on a printing medium having an RFID, comprising a communication unit configured to communicate with the RFID, and a search unit configured to move the communication unit to a position with respect to the RFID to search for a position communicable with the RFID, wherein the search unit determines communication success/failure between the RFID and the communication unit at a plurality of positions with respect to the RFID, and on the basis of a region including a plurality of positions determined as the communication being successful, identifying a communication position between the RFID and the communication unit.Type: GrantFiled: February 3, 2020Date of Patent: April 30, 2024Assignee: SATO HOLDINGS KABUSHIKI KAISHAInventors: Hidekazu Arai, Yuji Saito
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Publication number: 20240137698Abstract: A controller calculates individual parameters, including nonlinear parameters of a speaker model, based on a measured displacement of a vibration system of a speaker. A sound generator outputs an audio signal, and an output flattening filter adjusts gains of individual bands of an audio signal so that a frequency characteristic of a volume of sound output by the speaker is flattened in accordance with a speaker model obtained by linearizing calculated parameters and outputs a resultant audio signal. A nonlinear inverse filter corrects the resultant audio signal by signal processing adapted to the gains of the output flattening filter so that the nonlinear distortion of the speaker is suppressed in accordance with the speaker model including the nonlinear parameters and outputs the corrected audio signal as an output audio signal to the speaker via an amplifier.Type: ApplicationFiled: October 3, 2023Publication date: April 25, 2024Applicant: Alps Alpine Co., LTD.Inventor: Yuji SAITO
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Publication number: 20240064462Abstract: In implementations of an audio system, when overheating of a speaker is detected, a controller controls first and second selectors to input an audio signal output by an audio source device to a cooling processing section and cause output of the cooling processing section to be output to the speaker. In the cooling processing section, a mixer mixes an audio signal obtained by removing a low-frequency component from the input audio signal by a high-pass filter with a cooling signal at an infrasonic frequency generated by a cooling signal generator and adjusted with a gain by a gain adjuster. An audio signal obtained by mixing the audio signal with the cooling signal is output from the cooling processing section via a nonlinear inverse filter. A gain setting section sets the gain such that power of the cooling signal matches power of the low-frequency component extracted by a low-pass filter.Type: ApplicationFiled: August 1, 2023Publication date: February 22, 2024Applicant: ALPS ALPINE CO., LTD.Inventors: Yuji SAITO, Hiroyuki TAGUCHI, Katsuhiko EGAMI, Hiroki TOITA
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Patent number: 11865560Abstract: A liquid ejection device includes: a nozzle including a nozzle opening through which a liquid is ejected; a liquid transfer tube through which the liquid is transferred to the nozzle; and a first tube with the nozzle and the liquid transfer tube being provided therein, having a first end and a second end, and having a first opening at the first end, in which the nozzle opening is positioned closer to a second end side than the first opening of the first tube, and when a position where the liquid ejected from the nozzle becomes a droplet is set as a droplet formation position, and a distance from the nozzle opening to the droplet formation position is set as a droplet formation distance, a distance between the nozzle opening and the first opening is equal to or greater than the droplet formation distance.Type: GrantFiled: July 30, 2020Date of Patent: January 9, 2024Inventors: Yuji Saito, Hirokazu Sekino, Takeshi Seto, Hideki Kojima, Takahiro Matsuzaki
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Patent number: 11870355Abstract: The present disclosure includes a conversion circuit (10) having a switching element and converting DC voltage into AC voltage by switching operation of the switching element, an isolation transformer (3) for which an input side is connected to the conversion circuit (10), a rectifier circuit (4) connected to an outside of the isolation transformer (3), a resonance circuit connected to the output side of the isolation transformer (3), and a control circuit (100) for controlling the switching element, wherein the control circuit (100) turning on the switching element in a period when current flowing through resonance circuit flows from a low potential side terminal to a high potential side terminal of the switching element via the isolation transformer (3).Type: GrantFiled: September 13, 2018Date of Patent: January 9, 2024Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.Inventors: Yusuke Zushi, Yosuke Tomita, Yuji Saito, Keisuke Takemoto, Shigeharu Yamagami
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Publication number: 20230389232Abstract: An optical transceiver includes a case including a heat sink, one or more heat generating bodies disposed in the case, one or more heat conducting portions protruding from an inner wall surface of the case and thermally contacting the one or more heat generating bodies, and a heat pipe that transfers heat from the one or more heat conducting portions to the heat sink.Type: ApplicationFiled: October 26, 2021Publication date: November 30, 2023Applicant: Fujikura Ltd.Inventors: Mohammad Shahed Ahamed, Yuji Saito, Akihiro Takamiya, Tsuyoshi Ogawa
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Patent number: 11822075Abstract: A display device according to one aspect of the present invention includes: a display unit configured to have display information and emits visible light having a continuous spectrum; an infrared cut-off part configured to transmit the visible light from the display unit and to reduce the amount of infrared light striking the display unit; and a reflecting part configured to reflect the visible light having passed through the infrared cut-off part. The infrared cut-off part includes a first polymer film and a second polymer film, the first polymer film includes an infrared cut-off layer configured to reduce infrared light transmission, and the second polymer film includes a high-retardation polyester film and is disposed between the first polymer film and the display unit.Type: GrantFiled: July 27, 2018Date of Patent: November 21, 2023Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Yuji Saito, Noboru Iwata, Atsushi Ono, Kentaro Tamura
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Publication number: 20230339230Abstract: A liquid ejection device includes: a head unit having at least one nozzle and configured to eject a liquid containing a solvent and a cleaning agent from the nozzle; and a liquid transport tube configured to transport the liquid to the head unit. A content of the cleaning agent in the liquid is 1% by weight or more. The liquid is ejected from the head unit in a continuous flow, and the continuous flow is converted into droplets to collide with the object in a form of droplets.Type: ApplicationFiled: April 20, 2023Publication date: October 26, 2023Inventors: Hirokazu SEKINO, Yuji SAITO, Masaki KATO
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Patent number: 11780221Abstract: A liquid ejection device includes: an ejecting unit configured to eject a liquid from a nozzle in a first direction; and a light source unit configured to emit light in a first optical path and a second optical path which are arranged such that the first optical path and the second optical path intersect on an extension line in the first direction from the nozzle. With the liquid ejection device having such a configuration, it becomes easy to eject the liquid at a position having a preferable interval with respect to an object.Type: GrantFiled: February 1, 2021Date of Patent: October 10, 2023Assignee: SEIKO EPSON CORPORATIONInventors: Yuji Saito, Yasuyoshi Hama, Hideki Kojima
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Patent number: 11745211Abstract: Provided is a liquid ejection device that includes a nozzle that ejects a liquid, a liquid conveying tube that conveys the liquid to the nozzle, an outer tube that is internally provided with the nozzle and the liquid conveying tube, and a first vibration applying unit that applies vibration to the nozzle or the liquid conveying tube. The first vibration applying unit is provided between the nozzle and the outer pipe or between the liquid conveying tube and the outer pipe.Type: GrantFiled: July 30, 2020Date of Patent: September 5, 2023Inventors: Takahiro Matsuzaki, Hirokazu Sekino, Hideki Kojima, Takeshi Seto, Yuji Saito
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Publication number: 20230276185Abstract: A speaker has a magnetic angle sensor that detects the displacement of the vibration system of the speaker. A non-linearity compensation filter compensates for output distortion due to a non-linear parameter of the speaker. A transfer function of a linear inverse filter is applied so that output distortion is eliminated from the displacement, detected by the magnetic angle sensor, of the vibration system. A controller drives the speaker by using a test signal, and measures a response from the detected displacement of the vibration system. If error between the measured response and the theoretical value, theoretically determined from the design specifications, of the response is small, the controller uses the theoretical value, theoretically determined from the design specifications, of the non-linear parameter as an active non-linear parameter and sets, in the non-linearity compensation filter, a transfer function that compensates for distortion in an output due to the active non-linear parameter.Type: ApplicationFiled: January 31, 2023Publication date: August 31, 2023Applicant: Alps Alpine Co., LTDInventors: Yuji SAITO, Katsuhiko EGAMI, Hiroyuki TAGUCHI
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Patent number: 11701886Abstract: A liquid ejection device includes: a nozzle through which a liquid is ejected; a liquid transfer tube through which the liquid is transferred to the nozzle; and a vibration generation unit configured to generate vibration, in which the vibration generation unit is in contact with one of the liquid, the nozzle, and the liquid transfer tube, and when the liquid ejected from the nozzle flies as a plurality of droplets in a state where the vibration generation unit does not generate vibration, and the number of the droplets passing through a predetermined position in a unit time is defined as a droplet frequency, a frequency of the vibration generated by the vibration generation unit is equal to or less than the droplet frequency.Type: GrantFiled: December 8, 2021Date of Patent: July 18, 2023Inventors: Hirokazu Sekino, Takeshi Seto, Hideki Kojima, Takahiro Matsuzaki, Yuji Saito
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Publication number: 20230203252Abstract: A silicone rubber composition is provided. The composition comprises: (A) a straight chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) a resinous organopolysiloxane containing: SiO4/2 unit, R12R2SiO1/2 unit and R13SiO1/2 unit, wherein R1 independently represents an alkyl group having 1 to 12 carbon atoms and R2 represents an alkenyl group having 2 to 12 carbon atoms, and containing 0.1 to 5.0 mass % of the alkenyl groups; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; (E) a reinforcing silica fine powder; and (F) an intumescent flame retardant. When the composition is coated on a woven material, such as a base material for an airbag or the like, the composition can provide the woven material with sufficient flame retardance even with a low coating amount, and the composition can suppress an aperture of the woven material.Type: ApplicationFiled: April 27, 2021Publication date: June 29, 2023Inventors: Tomoko TASAKI, Yuji SAITO