Patents Assigned to Toyohashi University of Technology
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Patent number: 11926246Abstract: In a local cart traveling system, a frame track includes first and second metal rails each with an L-shaped cross section and facing each other. A local cart is within the frame track, and includes a first electricity receiving tire and a second electricity receiving tire to travel on horizontal travel surfaces of the rails. A voltage supplier supplies an AC voltage to the travel surfaces, so that the first metal rail and a first electricity receiving tire define a first capacitor and the second metal rail and the second electricity receiving tire define a second capacitor. The local cart includes a power receiver to receive AC power, and a travel motor that receives power after the AC power is rectified. The frame track includes a connecting plate as an electrical insulator covering portions of the surfaces of vertical walls of the first metal rail and the second metal rail.Type: GrantFiled: June 1, 2018Date of Patent: March 12, 2024Assignees: MURATA MACHINERY, LTD., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Minoru Mizutani, Kazuhiro Ishikawa, Masafumi Hayakawa, Takashi Ohira, Naoki Sakai, Hiroki Kuniyoshi, Makoto Teramoto
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Patent number: 11921081Abstract: A smell sensor includes an ion sensor in which a sensing section provided with a sensitive film configured to change a potential in accordance with a state of a measurement target is formed on a semiconductor substrate; a substance adsorption film disposed on the sensitive film and configured to change the state with adsorption of a smell substance; and a reference electrode configured to apply a reference voltage to the substance adsorption film. The reference electrode is disposed to be separated from the sensitive film and not to overlap the sensing section when viewed in a thickness direction of the semiconductor substrate.Type: GrantFiled: May 27, 2019Date of Patent: March 5, 2024Assignees: HAMAMATSU PHOTONICS K.K., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Toshiki Wakamori, Shinichi Nakahigashi, Kazuaki Sawada
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Patent number: 11902428Abstract: A key exchange system in which a shared key is generated for executing encrypted communication between communication apparatuses according to an authenticated key exchange protocol using ID-based encryption, wherein each communication apparatus includes a memory and a processor configured to generate a short-term private key by using a private key of the communication apparatus; generate a short-term public key of the communication apparatus by using the short-term private key; generate private information on the communication apparatus by using the short-term private key, a short-term public key generated by another communication apparatus, and public information generated by the communication apparatus and said another communication apparatus or public information generated by a key delivering center; and generate the shared key for executing encrypted communication with said another communication apparatus by executing a pairing operation using the private key of the communication apparatus and the privateType: GrantFiled: July 16, 2020Date of Patent: February 13, 2024Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Junichi Tomida, Fumitaka Hoshino, Akira Nagai, Atsushi Fujioka, Koutarou Suzuki
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Publication number: 20230408400Abstract: A gas measuring device includes a gas chamber into which a sample gas containing a target gas is introduced, a gas detection unit configured to detect the target gas contained in the sample gas introduced into the gas chamber, an irradiation unit configured to apply polarized light to the sample gas introduced into the gas chamber using a polarizer, an optical rotation measurement unit configured to measure optical rotation between the polarized light applied from the irradiation unit to the sample gas and the polarized light that has been transmitted through the sample gas using an analyzer, and an output unit configured to output information on the target gas detected by the gas detection unit and information on the optical rotation of the polarized light detected by the optical rotation measurement unit in association with each other.Type: ApplicationFiled: May 16, 2023Publication date: December 21, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Manase MIZUTANI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230378814Abstract: A wireless power transmission system includes a structure entirely surrounded by an electromagnetic wave shielding member having appropriate electrical conductivity and appropriate frequency selectivity; at least one power receiving unit; at least one power transmission unit; and at least one resonance frequency adjuster. The resonance frequency adjuster includes at least one conductive protrusion having an open end and a transmission line connected to another end of the conductive protrusion at one end of the transmission line, wherein the open end of the conductive protrusion is arranged inside the structure, and the transmission line is electrically connected to the electromagnetic wave shielding member defining a wall surface of the structure at another end not connected to the conductive protrusion.Type: ApplicationFiled: August 1, 2023Publication date: November 23, 2023Applicants: Murata Manufacturing Co., Ltd., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Hiromasa SAEKI, Masaya TAMURA, Suzuka AKAI
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Publication number: 20230324727Abstract: An isolator includes a substrate, a waveguide and an electronic circuit disposed above the substrate, and a non-reciprocal member disposed above the waveguide and the electronic circuit. The non-reciprocal member includes a first portion in contact with the waveguide and a second portion disposed within a predetermined range from the electronic circuit. Non-reciprocity in the second portion is weaker than non-reciprocity in the first portion.Type: ApplicationFiled: March 27, 2023Publication date: October 12, 2023Applicants: KYOCERA Corporation, Toyohashi University of TechnologyInventors: Taichi GOTO, Tomoya SUGITA, Yasuyuki TAMBA, Hiroaki INOUE
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Publication number: 20230314375Abstract: A gas measuring device includes: a magnetic field generation unit configured to generate a magnetic field; and a gas sensor configured to detect a gas that has passed through the magnetic field generated by the magnetic field generation unit.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Manase MIZUTANI, Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230314289Abstract: A gas measuring device includes: a gas rectification unit configured to rectify gas to control traveling directions and traveling speeds of gas molecules based on molecular weights of the gas molecules; and a gas sensor configured to absorb the gas molecules of the gas rectified by the gas rectification unit, and to detect absorption positions and absorption amounts.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Manase MIZUTANI, Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230314354Abstract: A gas measuring device includes: a filter to which a power supply that applies a voltage or current is connected, which generates resistance heat, and which combusts a predetermined combustible gas in contact therewith; and a gas sensor configured to detect the combustible gas that has passed through the filter.Type: ApplicationFiled: March 31, 2023Publication date: October 5, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Manase MIZUTANI, Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230288633Abstract: An isolator includes a substrate having a substrate surface, a waveguide, a groove, a mask, and a non-reciprocal member. The waveguide is disposed above the substrate surface and has a first surface facing the substrate surface, a second surface opposite the first surface, and a side face connecting the first surface to the second surface. The groove includes a bottom portion and a side portion configured to expose at least part of the side face of the waveguide. The mask is disposed above and overlaps at least a region of the second surface of the waveguide, as viewed in a direction normal to the substrate surface. The region of the second surface of the waveguide is in contact with the groove. The non-reciprocal member is disposed in the groove and is in contact with the side face of the waveguide.Type: ApplicationFiled: March 2, 2023Publication date: September 14, 2023Applicants: KYOCERA Corporation, Toyohashi University of TechnologyInventors: Tomoya Sugita, Taichi Goto
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Publication number: 20230096909Abstract: The gas measurement device includes a plurality of electrodes arranged apart from each other so as to have a gap through which gas can pass, each electrode connected to a power source for applying voltage or current, and a gas sensor configured to detect gas molecules passing between the electrodes.Type: ApplicationFiled: February 3, 2021Publication date: March 30, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230091525Abstract: The gas measurement device includes a gas sensor disposed in a gas chamber, a filter configured to control passing gas molecules to the gas chamber, and a driving unit configured to move at least a part of a member defining the gas chamber.Type: ApplicationFiled: February 3, 2021Publication date: March 23, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230078944Abstract: The gas measurement device includes a filter having a plurality of openings, each opening being variable in size, an adjustment mechanism configured to vary size of the plurality of openings, a first gas sensor configured to detect gas molecules passing through an opening of the filter and output a first measurement value corresponding to the detected gas molecules, and a second gas sensor configured to detect the gas molecules passing through the opening of the filter, output a second measurement value corresponding to the detected gas molecules, and detect gas molecules of a gas species different from the gas molecules detected by the second gas sensor.Type: ApplicationFiled: February 3, 2021Publication date: March 16, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Publication number: 20230079310Abstract: The gas measurement device includes a catalyst member connected to a power source applying voltage or current, performing a reaction of a first gas and a second gas contained in a mixed gas contacted with the catalyst member to generate a third gas, and exhibiting a catalytic action in which the reaction changes in response to temperature, and a gas sensor configured to detect gas molecules contacted with the catalyst member.Type: ApplicationFiled: February 3, 2021Publication date: March 16, 2023Applicants: SINTOKOGIO, LTD., National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Yoshihisa SUZUKI, Toshihiko NODA, Kazuaki SAWADA
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Patent number: 11580638Abstract: This invention provides a signal-processing method that makes it possible to acquire, relatively easily and surely, a highly reliable normalized impulse-response signal without relying on the signal-correction processing after normalization. The signal-processing method of this invention includes a low-frequency extraction step, a high-frequency extraction step and a synthesizing step. In the low-frequency extraction step, only the low-frequency component is extracted from the spectrum of the first normalized signal NS1 obtained by normalizing the target signal Stgt in the time domain. In the high-frequency extraction step, only the high-frequency component is extracted from the spectrum of the second normalized signal NS2 obtained by normalizing the target signal Stgt in the frequency domain using the reference signal Sref.Type: GrantFiled: November 13, 2020Date of Patent: February 14, 2023Assignees: HONDA ELECTRONICS CO., LTD., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Kazuto Kobayashi, Naohiro Hozumi
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Publication number: 20220303124Abstract: A key exchange system in which a shared key is generated for executing encrypted communication between communication apparatuses according to an authenticated key exchange protocol using ID-based encryption, wherein each communication apparatus includes a memory and a processor configured to generate a short-term private key by using a private key of the communication apparatus; generate a short-term public key of the communication apparatus by using the short-term private key; generate private information on the communication apparatus by using the short-term private key, a short-term public key generated by another communication apparatus, and public information generated by the communication apparatus and said another communication apparatus or public information generated by a key delivering center; and generate the shared key for executing encrypted communication with said another communication apparatus by executing a pairing operation using the private key of the communication apparatus and the privateType: ApplicationFiled: July 16, 2020Publication date: September 22, 2022Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Junichi TOMIDA, Fumitaka HOSHINO, Akira NAGAI, Atsushi FUJIOKA, Koutarou SUZUKI
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Patent number: 11387794Abstract: In each E-class inverter, an internal voltage detection circuit detects an internal voltage of a resonant type power supply circuit or a matching circuit and adjusts a phase of a driving signal of a MOSFET based on a detected voltage. It is thus possible to match a phase of a current voltage of a sine waveform of each inverter and combine power highly efficiently. Since power combining is performed highly efficiently without using a variable capacitor and variable inductor, it is possible to suppress upsizing of elements and achieve downsizing of a power amplifier circuit.Type: GrantFiled: December 30, 2019Date of Patent: July 12, 2022Assignees: DENSO CORPORATION, National University Corporation Toyohashi University of TechnologyInventors: Takanari Sasaya, Tetsuo Hirano, Takashi Ohira, Naoki Sakai, Takaaki Masaki
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Patent number: 11371936Abstract: A multiwavelength-light-radiating apparatus (1) includes: a light source (11) that radiates continuous light (Lc); a diffracting part (12) that diffracts the continuous light (Lc) into numerous monochromatic lights (Lm), whose wavelengths differ from one another, and emits the numerous monochromatic lights (Lm); numerous optical waveguides (2) that respectively transmit the numerous monochromatic lights (Lm) emitted from the diffracting part (12) from incident ends (21) to output ends (22) where the numerous monochromatic lights (Lm) are respectively emitted; and a sample-placement part (3) that holds numerous samples such that the output ends (22) of the numerous optical waveguides (2) respectively oppose the samples. The numerous monochromatic irradiation lights, whose wavelengths differ from one another, are arranged to be radiated simultaneously onto the numerous samples, one light per sample.Type: GrantFiled: April 4, 2018Date of Patent: June 28, 2022Assignee: NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventor: Yuu Hirose
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Publication number: 20220173430Abstract: The solid electrolyte of the present disclosure includes at least one compound selected from a group including (A) a compound in which a part of Li atom in Li3PS4 is substituted with a polyvalent atom (provided that Mg is excluded); (B) a compound in which a part of Li atom in Li6PS5X (X: Cl, Br or I) is substituted with a polyvalent atom; and (C) a compound in which a part of Li atom in Li7P3S11 is substituted with a polyvalent atom.Type: ApplicationFiled: March 6, 2020Publication date: June 2, 2022Applicant: NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Atsunori MATSUDA, Hiroyuki MUTO, Phuc Huu Huy NGUYEN
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Publication number: 20220163485Abstract: An ultrasonic testing device having a packaged semiconductor device as a testing target, the device including: an ultrasonic oscillator disposed to face the semiconductor device; a pulse generator generating a driving signal that is used in the generation of an ultrasonic wave to be output from the ultrasonic oscillator; and an analysis unit analyzing an output signal that is output from the semiconductor device in accordance with the irradiation of the ultrasonic wave from the ultrasonic oscillator, in which the pulse generator sets an optimal frequency of the driving signal such that the absorption of the ultrasonic wave in the semiconductor device is maximized.Type: ApplicationFiled: January 28, 2020Publication date: May 26, 2022Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, HAMAMATSU PHOTONICS K.K.Inventors: Naohiro HOZUMI, Takuto MATSUI, Toru MATSUMOTO, Shigeru EURA