Patents by Inventor Masahiro Matsumoto

Masahiro Matsumoto 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).

  • Publication number: 20230285300
    Abstract: It is an object of the present invention to provide a Janus fine particle, in which only the hemisphere on the porous side can be efficiently impregnated with a drug aqueous solution/suspension at a high content, and a method for producing the same. According to the present invention, provided is a Janus fine particle having a particle diameter of 0.01 to 5000 ?m, which is composed of a porous hemisphere portion and a non-porous hemisphere portion, wherein the wettability of the porous hemisphere portion to water is better than the wettability of the non-porous hemisphere portion to water.
    Type: Application
    Filed: July 21, 2021
    Publication date: September 14, 2023
    Inventors: Akihiro MATSUMOTO, Masahiro MURAKAMI
  • Publication number: 20230286032
    Abstract: Provided is a machining jig on which a carbon film (3) is formed on a machining surface of a rigid substrate (1), in which the carbon film (3) indicates a Raman spectroscopy spectrum with an intensity ratio, represented by the formula: ID/IG (where ID is the maximum peak intensity at 1333±10 cm?1 in the Raman spectroscopy spectrum of the carbon film surface, and IG is the maximum peak intensity at 1500±100 cm?1 in the Raman spectroscopy spectrum of the carbon film surface), exceeding 0.6. Also provided is a method of manufacturing seamless can bodies, the method including a step of using a mold machining member, on which a diamond film is formed on a machining surface, to press work a metal material onto the machining surface of the mold machining member in a state where a coolant is interposed.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 14, 2023
    Inventors: Ryozo SHIROISHI, Naoya MATSUMOTO, Masahiro SHIMAMURA, Takuho KUMAGAI, Tomohiro OGAWA
  • Publication number: 20230291334
    Abstract: With the aim of improving the reliability of a power conversion device for driving a motor, this power conversion device is provided with a rectifying portion for rectifying an AC voltage and outputting a DC voltage, a smoothing capacitor for smoothing the DC voltage, an inverter portion into which the DC voltage is input and which outputs AC power, an inverter drive portion for outputting a gate signal to the inverter portion, a regenerative braking portion connected in parallel with the smoothing capacitor, a regenerative braking drive portion for outputting a gate signal to the regenerative braking portion, a control portion for outputting drive signals to the inverter drive portion and the regenerative braking drive portion, a regenerative braking overcurrent detecting portion for outputting an overcurrent detection signal if the current flowing through the regenerative braking portion exceeds a determination value, and a latch portion into which the overcurrent detection signal output from the regenerati
    Type: Application
    Filed: October 29, 2021
    Publication date: September 14, 2023
    Inventors: Fumihiro SATO, Keisuke TANABE, Naoki TAKATA, Daisuke MATSUMOTO, Shigetoshi YAGIHARA, Masahiro HIRAGA
  • Publication number: 20230266225
    Abstract: There is provided a fine-particle sorting apparatus, including: a determination unit that performs sorting determination of a particle, the determination unit performing the determination using rule data defining, in accordance with a particle population to which a particle that is a sorting-determination target belongs and a particle population to which a different particle within a predetermined range around the particle belongs, a relationship between the particles, particle populations to which the particle that is a sorting-determination target and the different particle within the predetermined range may belong including the following particle populations of (a) a particle population of particles to be sorted, (b) a particle population of particles that are not to be sorted but are ignorable in the determination, and (c) a particle population of particles that are neither the particles to be sorted nor the ignorable particles, the ignorable particles including red blood cells.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 24, 2023
    Applicant: Sony Group Corporation
    Inventors: Yudai Yanashita, Yasunobu Kato, Kazuya Takahashi, Masahiro Matsumoto, Hirotaka Yoshida
  • Publication number: 20230268823
    Abstract: Provided are a power conversion device and a remote monitoring system capable of calculating the life of a power semiconductor device with high accuracy. In order to achieve the above purpose, a power conversion device, which controls the flow or interruption of a current with an inverter having a power semiconductor device and performs desired power conversion, comprises: a motor control unit which calculates a gate signal on the basis of a current value, a speed command, and a carrier frequency detected by a current sensor and controls the inverter; a temperature history calculator which estimates the loss of the power semiconductor device and calculates a temperature history; a temperature history storage device which stores the calculation result of the temperature history; and a damage calculator which calculates damage to the power semiconductor device from the temperature history read from the temperature history storage device.
    Type: Application
    Filed: July 20, 2021
    Publication date: August 24, 2023
    Inventors: Daisuke MATSUMOTO, Keisuke TANABE, Kazushige HOTTA, Fumihiro SATO, Masahiro HIRAGA
  • Publication number: 20230257338
    Abstract: The present invention provides a technique that enables introduction of active ingredients, in particular, nucleic acids, into cells with superior efficiency; and cationic lipids, etc., for use in the technique. The compound or a salt thereof according to the present invention is a compound represented by formula (I) or a salt thereof. In formula (I), n represents an integer of 2 to 5, R represents a linear C1-5 alkyl group, a linear C7-11 alkenyl group, or a linear C11 alkadienyl group, and wavy lines each independently represent a cis-bond or a trans-bond.
    Type: Application
    Filed: August 31, 2022
    Publication date: August 17, 2023
    Inventors: Satoru Matsumoto, Yoshimasa Omori, Masahiro Mineno, Yasutaka Hoashi
  • Publication number: 20230242983
    Abstract: An object of the present technology is to improve analysis efficiency in single cell analysis using a barcoding technique. The present technology provides a bioparticle analysis method including: a capture step of capturing a bioparticle on a surface, on which a molecule including a bioparticle capturing part, a barcode sequence, and a cleavable linker is immobilized via the linker, via the bioparticle capturing part; a cleavage step of cleaving the linker to release the bioparticle from the surface; and an isolation step of isolating the bioparticle into a microspace. Furthermore, the present technology also provides a bioparticle analysis system that performs the bioparticle analysis method.
    Type: Application
    Filed: June 17, 2021
    Publication date: August 3, 2023
    Applicant: Sony Group Corporation
    Inventor: Masahiro Matsumoto
  • Publication number: 20230226034
    Abstract: A medicament for treating or preventing a condition that is treatable or preventable by promotion of melanin production, such as photodermatoses (excluding porphyria), hypopigmentary disease (excluding vitiligo vulgaris), adverse effects of phototherapy, or gray hair, said medicament comprising a compound represented by general formula [I], or a pharmaceutically acceptable salt or cocrystal thereof, as an active ingredient.
    Type: Application
    Filed: June 10, 2021
    Publication date: July 20, 2023
    Inventors: Tsuyoshi SUZUKI, Masahiro KONDO, Yuko KAWANO, Atsuhiro MATSUMOTO
  • Publication number: 20230220217
    Abstract: An oil repellent agent including a modified natural product having at least one hydroxyl group, wherein a hydrogen atom of the hydroxyl group is replaced with an R group represented by —Y—Z, wherein Y represents a direct bond, —C(?O)—, —C(?O)—NR?— or —C(?S)—NR?—, where R? represents a hydrogen atom or a C1 to C4 alkyl group); and Z represents a hydrocarbon group having 1 to 40 carbon atoms and optionally having a substituent or a polysiloxane. The natural material is a natural product other than starch and preferably is a monosaccharide, a polysaccharide, glycerin or polyglycerin. Also disclosed is a textile product to which the oil-resistant agent is attached, an oil-resistant paper and a method of treating paper with the oil-resistant agent.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 13, 2023
    Inventors: Ryou AKUTA, Akane Matsumoto, Tatsunori Sakamaki, Masahiro Higashi, Hirokazu Aoyama, Yosuke Kishikawa, Yoshito Tanaka, Yuko Shiotani, Marina Aihara, Yukinori Tougo, Wakako Dewa, Mayumi IIDA
  • Publication number: 20230215784
    Abstract: A preferred aim of the invention is to provide technique for improving reliability of semiconductor devices when using a low-dielectric-constant film having a lower dielectric constant than a silicon oxide film to a part of an interlayer insulating film. More specifically, to achieve the preferred aim, an interlayer insulating film IL1 forming a first fine layer is formed of a middle-Young's-modulus film, and thus it is possible to separate an integrated high-Young's-modulus layer (a semiconductor substrate 1S and a contact interlayer insulating film CIL) and an interlayer insulating film (a low-Young's-modulus film; a low-dielectric-constant film) IL2 forming a second fine layer not to let them directly contact with each other, and stress can be diverged. As a result, film exfoliation of the interlayer insulating film IL2 formed of a low-Young's-modulus film can be prevented and thus reliability of semiconductor devices can be improved.
    Type: Application
    Filed: March 13, 2023
    Publication date: July 6, 2023
    Inventors: Masahiro MATSUMOTO, Masahiko FUJISAWA, Akihiko OSAKI, Atsushi ISHII
  • Publication number: 20230174688
    Abstract: An iodine-containing (meth)acrylate compound represented by formula (1): wherein R1 represents a hydrogen atom, methyl, or halogen; each R2 independently represents a hydrogen atom, a linear organic group having 1 to 20 carbon atoms, a branched organic group having 3 to 20 carbon atoms, or a cyclic organic group having 3 to 20 carbon atoms; A represents an organic group having 1 to 30 carbon atoms; A contains at least one acyl group; n1 represents 0 or 1; and n2 represents an integer of 1 to 20.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 8, 2023
    Inventors: Tadashi OMATSU, Masahiro MATSUMOTO, Michihiro YURI, Kentaro KATAOKA, Takashi SATO, Masatoshi Echigo
  • Publication number: 20230096137
    Abstract: An object of the present invention is to provide a composition for lithography capable of obtaining a film in contact with a resist layer or an underlayer film capable of forming a pattern excellent in exposure sensitivity the like. The object can be achieved by a composition for lithography containing a compound having at least one element selected from the group consisting of iodine, tellurium, and fluorine, or a resin having a constituent unit derived from the compound, wherein a total mass of the atoms in the compound is 15% by mass or more and 75% by mass or less.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 30, 2023
    Inventors: Tadashi OMATSU, Masahiro MATSUMOTO, Takashi SATO, Masatoshi ECHIGO
  • Publication number: 20230080617
    Abstract: There is a possibility that unauthorized writing of adjustment information occurs in a sensor device in which the adjustment information of the sensor device can be written from outside.
    Type: Application
    Filed: December 28, 2020
    Publication date: March 16, 2023
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Masahiro MATSUMOTO, Akira KOTABE, Akeo SATOH
  • Publication number: 20230066282
    Abstract: An object is to provide a method capable of associating position information of a cell with a cell constituent at a single-cell resolution. That is, the present technology provides an analysis method including: an imaging step of imaging a specimen in a state in which the specimen is being overlapped with a surface to which a molecule having a linker cleavable by stimulation, a barcode sequence, and a target capture portion is immobilized via the linker; an association step of associating a position of a cell with the barcode sequence of the molecule at the position by using a specimen image obtained by the imaging; a cleavage step of selectively stimulating the position of the cell to cleave the linker of the molecule at the position; and a binding step of binding the molecule released from the surface by the cleavage with a constituent of the cell via the target capture portion of the molecule.
    Type: Application
    Filed: February 4, 2021
    Publication date: March 2, 2023
  • Publication number: 20220396757
    Abstract: Provided is a new method for more efficiently generating emulsion particles each containing one fine particle.
    Type: Application
    Filed: July 20, 2020
    Publication date: December 15, 2022
    Applicant: Sony Group Corporation
    Inventors: Masahiro Matsumoto, Tatsumi Ito
  • Publication number: 20220348698
    Abstract: Provided is a compound having one or more halogens and an unsaturated double bond. Provided is a method for producing an iodine-containing vinyl monomer comprising: a) a step of providing an iodine-containing alcohol substrate having a general structure represented by the formula (1-1): (the definitions of the variables in the formula (1-1) are as described in the specification); and b) a step of dehydrating the iodine-containing alcohol substrate to obtain the iodine-containing vinyl monomer having a general structure represented by the formula (1): (the definitions of the variables in the formula (1) are as described in the specification).
    Type: Application
    Filed: August 7, 2020
    Publication date: November 3, 2022
    Inventors: Tadashi OMATSU, Kentaro KATAOKA, Masahiro MATSUMOTO, Yushi NIIMI, Takashi MAKINOSHIMA, Masatoshi ECHIGO
  • Patent number: 11467016
    Abstract: Provided are a semiconductor device and a sensor system capable of achieving improvement of noise resistance. Thus, an output circuit 106a in the semiconductor device includes: input terminals 207n, 207p; and an output terminal 208; an output amplifier 201 connecting the input terminals 207n, 207p to the output terminal 208; a feedback element 203 returning the output terminal 208 to the input terminal 207n; a switching transistor 204; and a resistance element 206. A drain of the switching transistor 204 is connected to the input terminal 207n. The resistance element 206 is provided between a back gate of the switching transistor 204 and a power source Vdd and has impedance of a predetermined value or more for suppressing noise of a predetermined frequency generated at the input terminal 207n.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: October 11, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Tatsuo Nakagawa, Akeo Satoh, Akira Kotabe, Masahiro Matsumoto
  • Patent number: 11440004
    Abstract: A microparticle sorting microchip for a flow cytometer is provided to enable sorting of microparticles at higher speed, higher purity, and higher acquisition rate. The microparticle sorting microchip includes a main channel through which a microparticle-containing fluid flows, a trap channel coaxially communicating with the main channel, a trap chamber communicating with the trap channel, and a gate channel intersecting the trap channel. The trap channel has an opening intersecting the gate channel. The trap channel has a smaller cross-sectional area upstream of the opening than downstream of the opening along a direction in which the microparticle-containing fluid flows.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 13, 2022
    Assignee: Sony Corporation
    Inventors: Tatsumi Ito, Kazuya Takahashi, Masahiro Matsumoto
  • Patent number: 11422016
    Abstract: Provided is a thermal flow rate meter capable of individually correcting different pulsation errors generated in an upstream side temperature sensor and a downstream side temperature sensor. A thermal flow rate meter 1 which measures a flow rate of a gas based on a temperature difference between an upstream side temperature sensor 12 and a downstream side temperature sensor 13, which are arranged on the upstream side and the downstream side of a heating element 11. The thermal flow rate meter includes: a detection element 10 that individually outputs an output signal of the upstream side temperature sensor 12 and an output signal of the downstream side temperature sensor 13; and compensator 20 that individually performs response compensation of the output signal of the upstream side temperature sensor 12 and the output signal of the downstream side temperature sensor 13.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: August 23, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Masahiro Matsumoto, Hiroshi Nakano, Akira Uenodan, Akira Kotabe
  • Patent number: 11385165
    Abstract: According to some aspects, a sample isolation kit is provided. The sample isolation kit includes a housing configured to detachably couple to a sample fluid channel of a microchip and provide a sample to the microchip. The housing and the microchip are coupled using a hermetic seal. The sample isolation kit further includes a storage housing configured to detachably couple to an isolation channel of the microchip and receive a target biological sample isolated from the sample by the microchip. The storage housing and the microchip are coupled using a hermetic seal.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 12, 2022
    Assignee: Sony Corporation
    Inventors: Yoichi Katsumoto, Masahiro Matsumoto, Kazuya Takahashi