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).
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Publication number: 20220271070Abstract: 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: ApplicationFiled: June 26, 2020Publication date: August 25, 2022Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: 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
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Publication number: 20220241569Abstract: 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: ApplicationFiled: June 24, 2020Publication date: August 4, 2022Inventors: Ying-shu Quan, Ying-zhe Li, Hirofumi Yamashita, Kenji Kajiyama, Fumio Kamiyama
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Publication number: 20220231072Abstract: 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: ApplicationFiled: February 17, 2022Publication date: July 21, 2022Inventor: Hirofumi Yamashita
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Publication number: 20220181364Abstract: 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: ApplicationFiled: March 13, 2020Publication date: June 9, 2022Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Shinichi MIYAKE, Hirofumi YAMASHITA
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Patent number: 11289528Abstract: 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: GrantFiled: June 27, 2018Date of Patent: March 29, 2022Assignee: Sony Semiconductor Solutions CorporationInventor: Hirofumi Yamashita
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Publication number: 20220023184Abstract: 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: ApplicationFiled: October 11, 2021Publication date: January 27, 2022Inventors: Ying-shu Quan, Hirofumi Yamashita, Fumio Kamiyama, Akira Yamamoto, Hidemasa Katsumi
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Publication number: 20220006968Abstract: 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: ApplicationFiled: November 11, 2019Publication date: January 6, 2022Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Hirofumi YAMASHITA
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Patent number: 11065962Abstract: 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: GrantFiled: May 2, 2018Date of Patent: July 20, 2021Assignee: DENSO CORPORATIONInventors: Masaki Nishiyama, Hirofumi Yamashita
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Publication number: 20210193711Abstract: 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: ApplicationFiled: September 14, 2018Publication date: June 24, 2021Inventors: HIRONOBU FUKUI, HIROFUMI YAMASHITA
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Publication number: 20210144321Abstract: 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: ApplicationFiled: July 8, 2019Publication date: May 13, 2021Inventors: HIROFUMI YAMASHITA, SHOHEI SHIMADA, YUSUKE OTAKE, YUSUKE TANAKA, TOSHIFUMI WAKANO
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Publication number: 20210084249Abstract: 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: ApplicationFiled: December 27, 2018Publication date: March 18, 2021Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Keiichi NAKAZAWA, Yoshiaki KITANO, Hirofumi YAMASHITA, Minoru ISHIDA
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Publication number: 20200289548Abstract: 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: ApplicationFiled: March 16, 2017Publication date: September 17, 2020Inventors: Ying-shu Quan, Hirofumi Yamashita, Fumio Kamiyama, Akira Yamamoto, Hidemasa Katsumi
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Publication number: 20200162685Abstract: 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: ApplicationFiled: June 27, 2018Publication date: May 21, 2020Inventor: Hirofumi Yamashita
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Publication number: 20190344062Abstract: 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: ApplicationFiled: December 28, 2017Publication date: November 14, 2019Inventors: Ying-shu Quan, Mio Saito, Hirofumi Yamashita, Fumio Kamiyama
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Patent number: 10173551Abstract: 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: GrantFiled: October 29, 2015Date of Patent: January 8, 2019Assignee: DENSO CORPORATIONInventors: Masaki Nishiyama, Hirofumi Yamashita
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Publication number: 20180345793Abstract: 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: ApplicationFiled: May 2, 2018Publication date: December 6, 2018Applicant: DENSO CORPORATIONInventors: Masaki NISHIYAMA, Hirofumi YAMASHITA
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Patent number: 9876041Abstract: 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: GrantFiled: January 20, 2016Date of Patent: January 23, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventor: Hirofumi Yamashita
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Patent number: 9834702Abstract: 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: GrantFiled: March 14, 2013Date of Patent: December 5, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Morita, Yasunori Miwa, Hirofumi Yamashita, Naoya Yabuuchi, Masahiko Ishii, Masako Hase
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Patent number: 9806663Abstract: 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: GrantFiled: August 12, 2016Date of Patent: October 31, 2017Assignee: DENSO CORPORATIONInventors: Xuezhi He, Masaki Nishiyama, Hirofumi Yamashita
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Publication number: 20170141716Abstract: 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: ApplicationFiled: August 12, 2016Publication date: May 18, 2017Applicant: DENSO CORPORATIONInventors: Xuezhi HE, Masaki NISHIYAMA, Hirofumi YAMASHITA