Patents by Inventor Hirofumi Yamashita

Hirofumi Yamashita 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: 20220271070
    Abstract: There is provided a solid-state imaging device including: a first semiconductor layer including a photoelectric converter and an electric charge accumulation section for each pixel, the electric charge accumulation section in which a signal electric charge generated in the photoelectric converter is accumulated; a pixel separation section that is provided in the first semiconductor layer, and partitions a plurality of the pixels from each other; a second semiconductor layer that is provided with a pixel transistor and is stacked on the first semiconductor layer, the pixel transistor that reads the signal electric charge of the electric charge accumulation section; and a first shared coupling section that is provided between the second semiconductor layer and the first semiconductor layer, and is provided to straddle the pixel separation section and is electrically coupled to a plurality of the electric charge accumulation sections.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 25, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Keiichi NAKAZAWA, Koichiro ZAITSU, Nobutoshi FUJII, Yohei HIURA, Shigetaka MORI, Shintaro OKAMOTO, Keiji OHSHIMA, Shuji MANDA, Junpei YAMAMOTO, Yui YUGA, Shinichi MIYAKE, Tomoki KAMBE, Ryo OGATA, Tatsuki MIYAJI, Shinji NAKAGAWA, Hirofumi YAMASHITA, Yasushi HAMAMOTO, Naohiko KIMIZUKA
  • Publication number: 20220241569
    Abstract: The present invention solves a problem that it is difficult for a microneedle located in a central portion of a microneedle array to be inserted into a skin. A microneedle array including a substrate and a plurality of microneedles arranged vertically and horizontally on one face of the substrate, wherein a needle interval of the microneedles is different in a peripheral portion and in a central portion of the substrate, and a needle density of the microneedles is different in the peripheral portion and in the central portion of the substrate. It is preferable that the needle density of the microneedles is sparser in the central portion than in the peripheral portion of the substrate, and the needle interval of the microneedles is wider in the central portion than in the peripheral portion of the substrate.
    Type: Application
    Filed: June 24, 2020
    Publication date: August 4, 2022
    Inventors: Ying-shu Quan, Ying-zhe Li, Hirofumi Yamashita, Kenji Kajiyama, Fumio Kamiyama
  • Publication number: 20220231072
    Abstract: Provided is an imaging apparatus including an imaging unit having a plurality of pixels, the pixels each having: a conversion element converting incident light into photoelectrons; a floating diffusion layer electrically connected to the conversion element and converting the photoelectrons into a voltage signal; a differential amplifier circuit electrically connected to the floating diffusion layer, including an amplifier transistor to which a potential of the floating diffusion layer is input, and amplifying the potential of the floating diffusion layer; a feedback transistor electrically connected to the amplifier transistor and initializing the differential amplifier circuit; a clamp capacitance connected in series between the floating diffusion layer and the amplifier transistor; and a reset transistor connected in parallel between the floating diffusion layer and the clamp capacitance and initializing the potential of the floating diffusion layer.
    Type: Application
    Filed: February 17, 2022
    Publication date: July 21, 2022
    Inventor: Hirofumi Yamashita
  • Publication number: 20220181364
    Abstract: An imaging element according to an embodiment of the present disclosure includes a first semiconductor substrate, and a second semiconductor substrate stacked over the first semiconductor substrate with an insulating layer interposed therebetween. The first semiconductor substrate includes a photoelectric conversion section, and a charge-holding section that holds charges transferred from the photoelectric conversion section. The second semiconductor substrate includes an amplification transistor that generates a signal of a voltage corresponding to a level of charges held in the charge-holding section. The amplification transistor includes a channel region, a source region, and a drain region in a plane intersecting a front surface of the second semiconductor substrate, and includes a gate electrode being opposed to the channel region with a gate insulating film interposed therebetween and being electrically coupled to the charge-holding section.
    Type: Application
    Filed: March 13, 2020
    Publication date: June 9, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Shinichi MIYAKE, Hirofumi YAMASHITA
  • Patent number: 11289528
    Abstract: Provided is an imaging apparatus including an imaging unit having a plurality of pixels, the pixels each having: a conversion element converting incident light into photoelectrons; a floating diffusion layer electrically connected to the conversion element and converting the photoelectrons into a voltage signal; a differential amplifier circuit electrically connected to the floating diffusion layer, including an amplifier transistor to which a potential of the floating diffusion layer is input, and amplifying the potential of the floating diffusion layer; a feedback transistor electrically connected to the amplifier transistor and initializing the differential amplifier circuit; a clamp capacitance connected in series between the floating diffusion layer and the amplifier transistor; and a reset transistor connected in parallel between the floating diffusion layer and the clamp capacitance and initializing the potential of the floating diffusion layer.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 29, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Hirofumi Yamashita
  • Publication number: 20220023184
    Abstract: To develop a novel administration method of a fucoidan-containing hair-growing agent and to provide a means for exerting excellent effects of a fucoidan. A hair-growing agent of the present invention is characterized in that it is composed of a combination of a fucoidan-containing microneedle and a fucoidan-containing liniment. A base of the fucoidan-containing microneedle is preferably a biosoluble polymer. A hair-growing method of the present invention is characterized in that the fucoidan-containing microneedle and the fucoidan-containing liniment are concomitantly used.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Ying-shu Quan, Hirofumi Yamashita, Fumio Kamiyama, Akira Yamamoto, Hidemasa Katsumi
  • Publication number: 20220006968
    Abstract: An imaging device includes a first section including a first semiconductor substrate, at least one first photoelectric conversion region, a first floating diffusion, a first bonding portion, a first wiring electrically connected between the first floating diffusion and the first bonding portion, at least one second photoelectric conversion region, a second floating diffusion coupled to the at least one second photoelectric conversion region, a second bonding portion, a second wiring electrically connected between the second floating diffusion and the second bonding portion, a first region coupled to a node that receives a reference voltage, and a third wiring coupled to the first region at a location that is between the first wiring and the second wiring. The imaging device includes a second section bonded to the first section via the first and second bonding portions and including readout circuitry coupled to the first bonding portion and the second bonding portion.
    Type: Application
    Filed: November 11, 2019
    Publication date: January 6, 2022
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hirofumi YAMASHITA
  • Patent number: 11065962
    Abstract: An inverter ECU is applied to a hybrid vehicle having an engine and a motor generator as drive power source and a motor generator control system. A drive control part generates drive signals for an inverter based on torque request to the motor generator. A temperature information acquiring part acquires an element temperature value and a cooling water temperature value as an inverter temperature value. An abnormality detection part detects whether the inverter temperature value is within a diagnosable temperature range, and performs abnormality detection for the motor generator control system when the inverter temperature value is within the diagnosable temperature range. When the inverter temperature value is not placed within the diagnosable temperature range, the energy supplied to the inverter is adjusted to move the inverter temperature value into the diagnosis allowable temperature range to correctly perform the abnormality detection.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: July 20, 2021
    Assignee: DENSO CORPORATION
    Inventors: Masaki Nishiyama, Hirofumi Yamashita
  • Publication number: 20210193711
    Abstract: In a solid-state imaging device, the area is reduced while the charge transfer efficiency is improved. The solid-state imaging device includes a photoelectric conversion unit, a transfer gate, a floating diffusion unit, and a transistor. The photoelectric conversion unit produces a charge according to incident light. The transfer gate has a columnar shape having an opening that is continuous in a vertical direction, and transfers the charge from the photoelectric conversion unit. The floating diffusion unit is formed extending to a region surrounded by the opening of the transfer gate, and converts the transferred charge into a voltage signal. The transistor is electrically connected to the floating diffusion unit via a diffusion layer.
    Type: Application
    Filed: September 14, 2018
    Publication date: June 24, 2021
    Inventors: HIRONOBU FUKUI, HIROFUMI YAMASHITA
  • Publication number: 20210144321
    Abstract: To provide a solid-state imaging device and an electronic apparatus capable of achieving both of a high dynamic range operation and an auto focus operation in a pixel configuration in which a plurality of unit pixels includes two or more subpixels. There is provided a solid-state imaging device including: a first pixel separation region that separates a plurality of unit pixels including two or more subpixels; a second pixel separation region that separates each of the plurality of unit pixels separated by the first pixel separation region; and an overflow region that causes signal charges accumulated in the subpixels to overflow to at least one of adjacent subpixels, in which the overflow region is formed between a first subpixel and a second subpixel.
    Type: Application
    Filed: July 8, 2019
    Publication date: May 13, 2021
    Inventors: HIROFUMI YAMASHITA, SHOHEI SHIMADA, YUSUKE OTAKE, YUSUKE TANAKA, TOSHIFUMI WAKANO
  • Publication number: 20210084249
    Abstract: An imaging element according to an embodiment of the present disclosure includes: a first substrate, a second substrate, and a third substrate that are stacked in this order. The first substrate including a sensor pixel that performs photoelectric conversion and the second substrate including a readout circuit are electrically coupled to each other by a first through wiring line provided in an interlayer insulating film. The second substrate and the third substrate including a logic circuit are electrically coupled to each other by a junction between pad electrodes or a second through wiring line penetrating through a semiconductor substrate.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 18, 2021
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Keiichi NAKAZAWA, Yoshiaki KITANO, Hirofumi YAMASHITA, Minoru ISHIDA
  • Publication number: 20200289548
    Abstract: To develop a novel administration method of a fucoidan-containing hair-growing agent and to provide a means for exerting excellent effects of a fucoidan. A hair-growing agent of the present invention is characterized in that it is composed of a combination of a fucoidan-containing microneedle and a fucoidan-containing liniment. A base of the fucoidan-containing microneedle is preferably a biosoluble polymer. A hair-growing method of the present invention is characterized in that the fucoidan-containing microneedle and the fucoidan-containing liniment are concomitantly used.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 17, 2020
    Inventors: Ying-shu Quan, Hirofumi Yamashita, Fumio Kamiyama, Akira Yamamoto, Hidemasa Katsumi
  • Publication number: 20200162685
    Abstract: Provided is an imaging apparatus including an imaging unit having a plurality of pixels, the pixels each having: a conversion element converting incident light into photoelectrons; a floating diffusion layer electrically connected to the conversion element and converting the photoelectrons into a voltage signal; a differential amplifier circuit electrically connected to the floating diffusion layer, including an amplifier transistor to which a potential of the floating diffusion layer is input, and amplifying the potential of the floating diffusion layer; a feedback transistor electrically connected to the amplifier transistor and initializing the differential amplifier circuit; a clamp capacitance connected in series between the floating diffusion layer and the amplifier transistor; and a reset transistor connected in parallel between the floating diffusion layer and the clamp capacitance and initializing the potential of the floating diffusion layer.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 21, 2020
    Inventor: Hirofumi Yamashita
  • Publication number: 20190344062
    Abstract: To provide a practical microneedle preparation which solves a problem that, even if a tip portion of the microneedle could be quantitatively coated with the drug, the drug remained in the stratum corneum when actually applying the microneedle array as a transdermal absorption preparation. A microneedle array having needles with a length of 350 ?m to 900 ?m, and a tip apex diameter of 20 ?m to 100 ?m, including drug-coated portions, and comprising a non-biosoluble polymer as a base, wherein a lower end of each drug-coated portion is 200 ?m or more away from a root of the needle.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 14, 2019
    Inventors: Ying-shu Quan, Mio Saito, Hirofumi Yamashita, Fumio Kamiyama
  • Patent number: 10173551
    Abstract: A control apparatus is provided in a rotary electric machine driving system that includes a rotary electric machine for a vehicle and a control unit that controls driving of the rotary electric machine. The apparatus includes a malfunction determination section determining whether or not a system malfunction that requires torque limitation has occurred, a to-be-avoided state determination section determining whether or not the vehicle is in a to-be-avoided state, a torque limitation section limiting an output torque outputted from the rotary electric machine to a limiting torque smaller than a command torque, when the system malfunction is determined to have occurred and the vehicle is not in the to-be-avoided state, and a torque limitation relaxation section permitting the output torque to be a limitation relaxation torque larger than the limiting torque, when the system malfunction is determined to have occurred and the vehicle is in the to-be-avoided state.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 8, 2019
    Assignee: DENSO CORPORATION
    Inventors: Masaki Nishiyama, Hirofumi Yamashita
  • Publication number: 20180345793
    Abstract: An inverter ECU is applied to a hybrid vehicle having an engine and a motor generator as drive power source and a motor generator control system. A drive control part generates drive signals for an inverter based on torque request to the motor generator. A temperature information acquiring part acquires an element temperature value and a cooling water temperature value as an inverter temperature value. An abnormality detection part detects whether the inverter temperature value is within a diagnosable temperature range, and performs abnormality detection for the motor generator control system when the inverter temperature value is within the diagnosable temperature range. When the inverter temperature value is not placed within the diagnosable temperature range, the energy supplied to the inverter is adjusted to move the inverter temperature value into the diagnosis allowable temperature range to correctly perform the abnormality detection.
    Type: Application
    Filed: May 2, 2018
    Publication date: December 6, 2018
    Applicant: DENSO CORPORATION
    Inventors: Masaki NISHIYAMA, Hirofumi YAMASHITA
  • Patent number: 9876041
    Abstract: According to one embodiment, a method of manufacturing a back-illuminated solid-state imaging device including forming a mask with apertures corresponding to a pixel pattern on the surface of a semiconductor layer, implanting second-conductivity-type impurity ions into the semiconductor layer from the front side of the layer to form second-conductivity-type photoelectric conversion parts and forming a part where no ion has been implanted into a pixel separation region, forming at the surface of the semiconductor layer a signal scanning circuit for reading light signals obtained at the photoelectric conversion parts after removing the mask, and removing the semiconductor substrate and a buried insulating layer from the semiconductor layer after causing a support substrate to adhere to the front side of the semiconductor layer.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 23, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Hirofumi Yamashita
  • Patent number: 9834702
    Abstract: The present disclosure provides a jet-black multilayer coating film having excellent properties in high appearance, water resistance, and humidity resistance and comprising a base coating film and a clear coating film formed by a coating composition containing a plant-derived aliphatic polyester mainly and a method for forming the same. A jet-black multilayer coating film comprising a base coating film layer formed by a base coating composition which contains a polyester polyol (A-1) containing a polyol having three or more functions and lactic acid as a consisting component of 80 mol % or more and having a hydroxyl value of 140 to 240 mgKOH/g wherein 70 mol % or more of the hydroxyl groups are secondary hydroxyl groups, an acrylic resin (A-2) with a hydroxyl value of 30 to 80 mgKOH/g and a glass transition point of 40 to 80° C.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 5, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Morita, Yasunori Miwa, Hirofumi Yamashita, Naoya Yabuuchi, Masahiko Ishii, Masako Hase
  • Patent number: 9806663
    Abstract: A motor-generator control part controls driving of a motor-generator, which is a drive power source of a vehicle. A torque limitation part of the MG control part limits a torque of the motor-generator when an element temperature indicating a system temperature increases to be higher than a limitation starting temperature. The torque limitation part continues the torque limitation, which was performed when the element temperature was at a peak temperature, until a limitation continuation period elapses, when the element temperature changes from increasing to decreasing as a result of limiting the torque of the motor-generator. Thus torque variation is suppressed while also suppressing overheating of a motor-generator driving system.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 31, 2017
    Assignee: DENSO CORPORATION
    Inventors: Xuezhi He, Masaki Nishiyama, Hirofumi Yamashita
  • Publication number: 20170141716
    Abstract: A motor-generator control part controls driving of a motor-generator, which is a drive power source of a vehicle. A torque limitation part of the MG control part limits a torque of the motor-generator when an element temperature indicating a system temperature increases to be higher than a limitation starting temperature. The torque limitation part continues the torque limitation, which was performed when the element temperature was at a peak temperature, until a limitation continuation period elapses, when the element temperature changes from increasing to decreasing as a result of limiting the torque of the motor-generator. Thus torque variation is suppressed while also suppressing overheating of a motor-generator driving system.
    Type: Application
    Filed: August 12, 2016
    Publication date: May 18, 2017
    Applicant: DENSO CORPORATION
    Inventors: Xuezhi HE, Masaki NISHIYAMA, Hirofumi YAMASHITA