Patents by Inventor Toru Sakai
Toru Sakai 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).
-
Patent number: 12157796Abstract: A method for producing a decolorized polyester according to the present invention includes: a step of preparing a polyester colored with a colorant, and a decolorizing agent containing a glycol ether-type compound having a boiling point at atmospheric pressure of 160° C. or higher; and a step of removing the colorant, by bringing the decolorizing agent into contact at least once with the colored polyester while heating the decolorizing agent to a temperature equal to or lower than a melting point of the polyester, to thereby obtain the decolorized polyester.Type: GrantFiled: April 15, 2019Date of Patent: December 3, 2024Assignees: SHINTECH CORPORATION, JEPLAN, INC.Inventors: Masaki Takao, Toru Sakai, Hiroshi Fujita, Shuji Inada
-
Patent number: 12152132Abstract: Provide is a rubber composition for a tire that improves mechanical properties beyond conventional levels. The rubber composition for a tire according to an embodiment of the present invention contains from 1 to 50 parts by mass of oxidized cellulose nanofibers blended in 100 parts by mass of diene rubber containing 5% by mass or greater of modified diene rubber having 0.1% by mol or greater of a polar group.Type: GrantFiled: February 25, 2019Date of Patent: November 26, 2024Assignees: The Yokohama Rubber Co., Ltd., Shinshu UniversityInventors: Tomoyuki Sakai, Masayuki Kawazoe, Toru Noguchi
-
Publication number: 20240385117Abstract: The present invention relates to a reagent for measurement of a percarboxylic acid concentration of a percarboxylic acid-containing aqueous solution with high accuracy using an optical method, and a method for measuring and a device capable of measuring using the reagent. As an indicator solution to be used for measuring a percarboxylic acid concentration in a percarboxylic acid-containing aqueous solution (test sample), the indicator solution is used that contains Brilliant Blue FCF as an internal standard substance and an iodide salt as a coloring substance.Type: ApplicationFiled: November 30, 2021Publication date: November 21, 2024Applicant: SARAYA CO., LTD.Inventors: Satomi SAKAI, Tadashi MATSUMOTO, Emiko KAWAMUKAI, Toru YASUHARA
-
Patent number: 12141635Abstract: A method of manufacturing a smartcard inlay the method comprising: providing a dielectric sheet; depositing, on a first major surface of the dielectric sheet, an active matrix TFT array comprising at least one conductive layer; wherein the at least one conductive layer is deposited on regions of the dielectric sheet outside the active matrix TFT array to provide electrical connections of the inlay.Type: GrantFiled: September 10, 2021Date of Patent: November 12, 2024Assignee: TOUCH BIOMETRIX LIMITEDInventors: Michael Cowin, Henricus Derckx, Wilhelmus Van Lier, Toru Sakai
-
Patent number: 12125307Abstract: A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: a contact sensing area comprising an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and an analog to digital converter configured to provide a digital signal based on said read-out currents; wherein the sensor is configured to coType: GrantFiled: September 7, 2021Date of Patent: October 22, 2024Assignee: TOUCH BIOMETRIX LIMITEDInventors: Henricus Derckx, Michael Cowin, Wilhelmus Van Lier, Toru Sakai
-
Publication number: 20240337604Abstract: An appearance inspection apparatus includes a shape measurement unit configured to measure the three-dimensional shape of a weld and a data processor configured to process shape data acquired by the shape measurement unit. The data processor includes a shape data processor configured to correct a resolution of the shape data, a learning data set generator configured to generate a plurality of learning data sets by performing data augmentation on multiple pieces of sample shape data acquired in advance, a determination model generator configured to generate a determination model using the plurality of learning data sets, and a first determination unit configured to determine whether the shape of the weld is good or bad based on the shape data having the corrected resolution and the determination model.Type: ApplicationFiled: June 17, 2024Publication date: October 10, 2024Inventors: Toru SAKAI, Masashi YOSHIDA, Michio SAKURAI, Daichi HIGASHI
-
Publication number: 20240337608Abstract: An appearance inspection apparatus includes a shape measurement unit configured to measure the three-dimensional shape of a weld and a data processor configured to process sample shape data and shape data acquired by the shape measurement unit. The data processor includes a first learning data set generator configured to generate a plurality of first learning data sets based on the sample shape data, a second learning data set generator configured to generate a plurality of second learning data sets based on the first learning data sets, a determination model generator configured to generate multiple types of determination models using the second learning data sets, and a first determination unit configured to determine whether the shape of the weld is good or bad based on the shape data and one of the determination models.Type: ApplicationFiled: June 17, 2024Publication date: October 10, 2024Inventors: Toru SAKAI, Michio SAKURAI, Daichi HIGASHI
-
Patent number: 12100238Abstract: A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and a current mirror assembly connected to the multiplexer to receive an input current therefrom and to provide a selected gain to the input current; wherein the sensor is configuType: GrantFiled: September 7, 2021Date of Patent: September 24, 2024Assignee: TOUCH BIOMETRIX LIMITEDInventors: Henricus Derckx, Michael Cowin, Wilhelmus Van Lier, Toru Sakai
-
Patent number: 12076817Abstract: A laser welding device is configured to switch an irradiation position of a measurement beam between a position of a keyhole coaxial with the optical axis of a laser beam and a position of a weld bead behind the center of an optical axis of the laser beam in a welding direction. The laser welding device determines whether there is a gap between an upper metal plate and a lower metal plate based on a measured value of a recess depth measured at the position of the weld bead.Type: GrantFiled: October 9, 2020Date of Patent: September 3, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toru Sakai, Atsuhiro Kawamoto, Junji Fujiwara, Michio Sakurai
-
Publication number: 20240290814Abstract: A first light-receiving device of an embodiment of the disclosure includes: a first semiconductor substrate having first and second surfaces opposed to each other, receiving application of a first potential, and including light-receiving elements arranged two-dimensionally in matrix; a second semiconductor substrate having third and fourth surfaces opposed to each other, with the first surface and the third surface being disposed to be opposed to each other, receiving application of a second potential lower than the first potential, and including a logic circuit that processes a light-receiving signal based on electric charge outputted from the plurality of light-receiving elements; and an interlayer insulating layer provided between the first and second semiconductor substrates, in which the second semiconductor substrate has a side surface recessed more inward than a side surface of the first semiconductor substrate, and the side surface of the second semiconductor substrate is coated with a protective filmType: ApplicationFiled: March 16, 2022Publication date: August 29, 2024Inventors: TORU SHIRAKATA, HIKARU IWATA, MASANARI YAMAGUCHI, KAZUNOBU OTA, ATSUHIRO ANDO, DAIKI SAKAI, AKIRA MAEHARA
-
Publication number: 20240207970Abstract: A laser welding device includes: an irradiator configured to overlap laser light and measurement light coaxially with each other and apply the laser light and the measurement light to a weld part, a wavelength of the measurement light being different from a wavelength of the laser light; a measuring instrument configured to repeatedly measure a weld penetration depth of the weld part based on the measurement light that is emitted from the irradiator and reflected on the weld part so as to generate measured values; and a determiner configured to determine the weld penetration depth of the weld part based on: (i) one or more of the measured values; or (ii) an average value of the one or more measured values, the one or more measured values being included within a predetermined range with reference to a greatest side measured value of the measured values.Type: ApplicationFiled: March 8, 2024Publication date: June 27, 2024Inventors: Toru SAKAI, Michio Sakurai
-
Patent number: 12017299Abstract: Laser welding is performed while moving irradiation positions of a laser beam and a measurement beam in forward, rightward, rearward and leftward directions, and the penetration depth of a weld portion is measured during laser welding in each of the directions. Then, a direction in which a value smaller than a reference value is measured is determined to be an optical axis deviation direction, and a correction value is added to the values measured during the laser welding when the laser welding is performed in the optical axis deviation direction.Type: GrantFiled: October 9, 2020Date of Patent: June 25, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Michio Sakurai, Toru Sakai, Kenta Kubota, Takashi Urashima, Daichi Higashi
-
Patent number: 11999008Abstract: A laser welding device (10) for welding a weld part (35) with laser light (L) includes: a laser emitting head (20) overlapping the laser light (L) and a measurement light (S) coaxially with each other and applying the laser light (L) and the measurement light (S) to the weld part (35), the measurement light (S) having a wavelength different from a wavelength of the laser light (L); a first parallel plane plate and a second parallel plane plate, changing an irradiation position of the measurement light (S) such that the irradiation position orbitally move around a center of rotation that moves on a predetermined welding path in a radius of rotation that is smaller than ½ of a spot diameter of the laser light (L); a measuring instrument (14) repeatedly measuring a weld penetration depth of the weld part (35) based on the measurement light (S) that is emitted from the laser emitting head (20) and is reflected on the weld part (35) while the measurement light (S) is being orbitally moved; and a determiner (17) deType: GrantFiled: August 4, 2020Date of Patent: June 4, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toru Sakai, Michio Sakurai, Takashi Urashima, Daichi Higashi
-
Patent number: 11964339Abstract: A laser welding device includes: an irradiator configured to overlap laser light and measurement light coaxially with each other and apply the laser light and the measurement light to a weld part, a wavelength of the measurement light being different from a wavelength of the laser light; a measuring instrument configured to repeatedly measure a weld penetration depth of the weld part based on the measurement light that is emitted from the irradiator and reflected on the weld part so as to generate measured values; and a determiner configured to determine the weld penetration depth of the weld part based on (i) one or more measured values; or (ii) an average value of the one or more measured values, the one or more measured values being included within a predetermined range with reference to a greatest side measured value of the plurality of measured values.Type: GrantFiled: August 4, 2020Date of Patent: April 23, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Toru Sakai, Michio Sakurai
-
Publication number: 20240128824Abstract: A dynamo-electric machine comprising: a stator core with plurality of slots, a coil covered with insulated conductor wire, wherein the coil comprising plurality of storages stored in the slots and plurality of coil ends that are outside of the slots, conductor of coil end close to the conductor of the heterophase coil having insulating materials at only one of the surfaces, either the inner diameter surface close to the conductor of the heterophase coil or outer diameter surface of the heterophase coil.Type: ApplicationFiled: December 16, 2021Publication date: April 18, 2024Inventors: Kenji IKEDA, Yuji ENOMOTO, Hirooki TOKOI, Mizuki NAKAHARA, Hiroyuki MIKAMI, Toshifumi SUZUKI, Toru SAKAI, Masaru AMAIKE, Yuji TSUJI
-
Patent number: 11961321Abstract: A biometric skin contact sensor comprising an array of sensor pixels, wherein each sensor pixel comprises: a capacitive sensing electrode for accumulating a charge in response to proximity of a conductive object to be sensed; a reference capacitor connected to the capacitive sensing electrode; a sense voltage-controlled impedance, VCI, having a control terminal connected to a connection between the capacitive sensing electrode and the reference capacitor, the sense VCI having an impedance controlled by its control terminal voltage, and wherein the pixel is arranged so that, in response to a select voltage being applied to the pixel, the control terminal voltage of the sense VCI indicates the proximity of the conductive object to be sensed; and biasing circuitry comprising a one-way conduction path from a bias voltage connection to the control terminal of the sense VCI so that current flows from the bias voltage towards the control terminal of the sense VCI in response to the control terminal voltage of the seType: GrantFiled: August 27, 2021Date of Patent: April 16, 2024Assignee: TOUCH BIOMETRIX LIMITEDInventors: Henricus Derckx, Wilhelmus Van Lier, Toru Sakai
-
Publication number: 20240097508Abstract: A rotary electric machine (1000) including: a rotor (200); a stator (100) surrounding a periphery of the rotor (200); a first recessed portion (133) disposed in an inner circumferential surface of a back yoke (130) of the stator (100), and extending in an axial direction of the stator (100); and a tooth (120) having one end fitted in the first recessed portion (133), a clearance formed between the first recessed portion (133) and the one end of the tooth (120) fitted in the first recessed portion (133) being smaller in a circumferential direction of the stator (100) than in a radial direction of the stator (100).Type: ApplicationFiled: November 24, 2021Publication date: March 21, 2024Inventors: Hirooki TOKOI, Mizuki NAKAHARA, Toshifumi SUZUKI, Masaru AMAIKE, Shuuichi TAKAHASHI, Yasuei YONEOKA, Toru SAKAI
-
Publication number: 20240021007Abstract: A biometric skin contact sensor comprising an array of sensor pixels, wherein each sensor pixel comprises: a capacitive sensing electrode for accumulating a charge in response to proximity of a conductive object to be sensed; a reference capacitor connected to the capacitive sensing electrode; a sense voltage-controlled impedance, VCI, having a control terminal connected to a connection between the capacitive sensing electrode and the reference capacitor, the sense VCI having an impedance controlled by its control terminal voltage, and wherein the pixel is arranged so that, in response to a select voltage being applied to the pixel, the control terminal voltage of the sense VCI indicates the proximity of the conductive object to be sensed; and biasing circuitry comprising a one-way conduction path from a bias voltage connection to the control terminal of the sense VCI so that current flows from the bias voltage towards the control terminal of the sense VCI in response to the control terminal voltage of the seType: ApplicationFiled: August 27, 2021Publication date: January 18, 2024Inventors: Henricus DERCKX, Wilhelmus VAN LIER, Toru SAKAI
-
Patent number: 11872657Abstract: A welding system includes a welding apparatus and an appearance inspection apparatus. The appearance inspection apparatus includes: a shape measurement unit that measures the shape of a weld; an image processor that generates image data based on data of the shape; a determination unit that determines whether the shape of the weld is good or bad based on the image data and a determination model; and a feedback unit that extracts shape defect information if the result of the determination by the determination unit is negative. An output controller of the welding apparatus corrects a welding condition for a workpiece based on the shape defect information extracted by the feedback unit.Type: GrantFiled: June 21, 2021Date of Patent: January 16, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Michio Sakurai, Narumi Atsuta, Toru Sakai, Masashi Yoshida
-
Publication number: 20230377365Abstract: A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and a current mirror assembly connected to the multiplexer to receive an input current therefrom and to provide a selected gain to the input current; wherein the sensor is configuType: ApplicationFiled: September 7, 2021Publication date: November 23, 2023Inventors: Henricus DERCKX, Michael COWIN, Wilhelmus VAN LIER, Toru SAKAI