Patents by Inventor Keisuke Miyazaki

Keisuke Miyazaki 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: 11942411
    Abstract: RC-IGBT chips and RC-IGBT chips correspond to a pair of adjacent RC-IGBT chips in an X direction between the RC-IGBT chips. The RC-IGBT chips satisfy a first arrangement condition in which the chips are separately arranged without a bonding point region and a bonding point region overlapping each other in a Y direction, and a second arrangement condition in which, in the Y direction, the chips are arranged to partially overlap so that a part of emitter electrodes excluding the bonding point region and the bonding point region overlap. The RC-IGBT chips also satisfy the first and second arrangement conditions described above.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 26, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takamasa Miyazaki, Keisuke Eguchi
  • Patent number: 11923673
    Abstract: A semiconductor device includes: a switching device including a main portion and a current sensing portion for detecting a current value of the main portion; a control IC including a gate drive unit that drives the switching device; a sensing resistor connected between an emitter of the main portion and an emitter of the current sensing portion and formed inside the control IC; a comparator comparing a sense voltage applied to the sensing resistor with a reference voltage; and a shut-down circuit shutting down an energization of the switching device when the sense voltage exceeds the reference voltage, wherein the sense voltage is more than or equal to 1 V when the energization of the switching device is shut down.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: March 5, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Keisuke Eguchi, Takamasa Miyazaki
  • Patent number: 10992103
    Abstract: A laser device includes a substrate including a principal surface and a recess provided in the principal surface; a laser oscillation unit fixed to the principal surface in direct contact with the principal surface or with an adhesive interposed between the laser oscillation unit and the principal surface, the laser oscillation unit having an emission surface from which laser light that diverges as the laser light travels is emitted along the principal surface; and a reflecting member fixed to a bottom surface of the recess and having an inclined surface that is inclined with respect to the principal surface so as to reflect the laser light. At least a portion of the inclined surface is positioned in a space inside the recess.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: April 27, 2021
    Assignee: Sharp Fukuyama Laser Co., Ltd.
    Inventors: Satoshi Komada, Keisuke Miyazaki, Takashi Ono, Tetsuya Fujitani
  • Patent number: 10696707
    Abstract: The present invention is the following Amphotericin B derivative: wherein each symbol is defined in description. The compound of the present invention has 16th position (X) is urea structure, cyclic structure, hydroxyalkyl or substituted monoalkylcarbamoyl. The compound of the present invention has antifungal activity.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: June 30, 2020
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Keisuke Miyazaki, Kenji Takaya, Takafumi Ohara, Hideki Sugimoto, Manabu Fujitani, Yuki Ogata, Naoyuki Suzuki
  • Patent number: 10658812
    Abstract: Light emission efficiency is increased in an eye-safe light source by regulating light distribution properties. An eye-safe light source includes a package, a semiconductor laser that emits laser light from a left light emission end surface and a right light emission end surface, and a wire that is joined to the semiconductor laser. The semiconductor laser is joined to the package such that the laser light is emitted parallel to an upper surface of a lead frame of the package. The package includes reflection surfaces that face the left light emission end surface and the right light emission end surface and reflect the laser light. In top view, a direction in which the wire extends is perpendicular to a direction of emission of the laser light.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shin Itoh, Keisuke Miyazaki
  • Publication number: 20190144396
    Abstract: The purpose of the present invention is to provide novel compounds having ACC2 selective inhibitory activity. In addition, the present invention provides a pharmaceutical composition comprising the compound. A compound of Formula: or its pharmaceutically acceptable salt, wherein, R1 is substituted or unsubstituted fused aromatic heterocyclyl represented by Formula: wherein, ring B is 5-membered ring, ring C is 6-membered ring; ring A is substituted or unsubstituted non-aromatic carbocycle or the like; -L1- is —O—(CR6R7)m- or the like; -L2- is —O—(CR6R7)n- or the like; each R6 is independently hydrogen or the like; each R7 is independently hydrogen or the like; each m is independently an integer of 0, 1, 2 or 3; each n is independently an integer of 1, 2 or 3; R2 is substituted or unsubstituted alkyl; R3 is hydrogen or substituted or unsubstituted alkyl; R4 is substituted or unsubstituted alkylcarbonyl or the like.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 16, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Naoki OHYABU, Kana KURAHASHI, Yuji NISHIURA, Manabu KATOU, Keisuke MIYAZAKI, Yoshikazu SASAKI, Toshihiro WADA, Masafumi IWATSU
  • Publication number: 20190135847
    Abstract: The present invention is the following Amphotericin B derivative: wherein each symbol is defined in description. The compound of the present invention has 16th position (X) is urea structure, cyclic structure, hydroxyalkyl or substituted monoalkylcarbamoyl. The compound of the present invention has antifungal activity.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Applicant: Shionogi & Co., Ltd.
    Inventors: Keisuke MIYAZAKI, Kenji TAKAYA, Takafumi OHARA, Hideki SUGIMOTO, Manabu FUJITANI, Yuki OGATA, Naoyuki SUZUKI
  • Patent number: 10246478
    Abstract: The present invention is the following Amphotericin B derivative: wherein each symbol is defined in description. The compound of the present invention has 16th position (X) is urea structure, cyclic structure, hydroxyalkyl or substituted monoalkylcarbamoyl. The compound of the present invention has antifungal activity.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: April 2, 2019
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Keisuke Miyazaki, Kenji Takaya, Takafumi Ohara, Hideki Sugimoto, Manabu Fujitani, Yuki Ogata, Naoyuki Suzuki
  • Patent number: 10233156
    Abstract: The purpose of the present invention is to provide novel compounds having ACC2 selective inhibitory activity. In addition, the present invention provides a pharmaceutical composition comprising the compound. A compound of Formula: or its pharmaceutically acceptable salt, wherein, R1 is substituted or unsubstituted fused aromatic heterocyclyl represented by Formula: wherein, ring B is 5-membered ring, ring C is 6-membered ring; ring A is substituted or unsubstituted non-aromatic carbocycle or the like; —L1— is —O—(CR6R7)m— or the like; —L2— is —O—(CR6R7)n— or the like; each R6 is independently hydrogen or the like; each R7 is independently hydrogen or the like; each m is independently an integer of 0, 1, 2 or 3; each n is independently an integer of 1, 2 or 3; R2 is substituted or unsubstituted alkyl; R3 is hydrogen or substituted or unsubstituted alkyl; R4 is substituted or unsubstituted alkylcarbonyl or the like.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: March 19, 2019
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Naoki Ohyabu, Kana Kurahashi, Yuji Nishiura, Manabu Katou, Keisuke Miyazaki, Yoshikazu Sasaki, Toshihiro Wada, Masafumi Iwatsu
  • Patent number: 10150728
    Abstract: The object of the present invention is to provide novel compounds having ACC2 inhibiting activity. In addition, the object of the present invention is to provide a pharmaceutical composition comprising the compound. A compound of formula (I): wherein R1 is substituted or unsubstituted fused aromatic heterocyclyl etc., ring A is substituted or unsubstituted non-aromatic carbocycle etc., -L1- is —O—(CR6R7)m- etc., -L2- is —O—(CR6R7)n- etc., each R6 and R7 are independently hydrogen, halogen etc., R2 is substituted or unsubstituted alkyl, R3 is hydrogen or substituted or unsubstituted alkyl, R4 is substituted or unsubstituted alkylcarbonyl etc.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: December 11, 2018
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Naotake Kobayashi, Kentarou Asahi, Yutaka Tomida, Masahide Ohdan, Masataka Fumoto, Yoshikazu Sasaki, Kana Kurahashi, Takatsugu Inoue, Tomomi Urabe, Yuji Nishiura, Masafumi Iwatsu, Keisuke Miyazaki, Naoki Ohyabu, Toshihiro Wada, Manabu Katou
  • Publication number: 20180331492
    Abstract: Light emission efficiency is increased in an eye-safe light source by regulating light distribution properties. An eye-safe light source includes a package, a semiconductor laser that emits laser light from a left light emission end surface and a right light emission end surface, and a wire that is joined to the semiconductor laser. The semiconductor laser is joined to the package such that the laser light is emitted parallel to an upper surface of a lead frame of the package. The package includes reflection surfaces that face the left light emission end surface and the right light emission end surface and reflect the laser light. In top view, a direction in which the wire extends is perpendicular to a direction of emission of the laser light.
    Type: Application
    Filed: October 7, 2016
    Publication date: November 15, 2018
    Inventors: SHIN ITOH, KEISUKE MIYAZAKI
  • Publication number: 20180325427
    Abstract: Provided is an imaging device capable of improving imaging accuracy while suppressing increase in a size of the device and cost thereof. An imaging device includes: a light source which is a semiconductor laser that radiates infrared light to an imaging target; a polarizing filter that blocks light that is reflected by a surface of the imaging target and transmits light that is reflected inside the imaging target; and an image sensor that receives the light that is transmitted through the polarizing filter and captures an image of the imaging target.
    Type: Application
    Filed: September 29, 2016
    Publication date: November 15, 2018
    Inventors: SHIN ITOH, KAZUHIRO TSUCHIDA, TOHRU MURATA, HIROAKI YAMAMOTO, AKIRA ARIYOSHI, KEISUKE MIYAZAKI, YOSHIKI SOTA
  • Publication number: 20180079727
    Abstract: The purpose of the present invention is to provide novel compounds having ACC2 selective inhibitory activity. In addition, the present invention provides a pharmaceutical composition comprising the compound. A compound of Formula: or its pharmaceutically acceptable salt, wherein, R1 is substituted or unsubstituted fused aromatic heterocyclyl represented by Formula: wherein, ring B is 5-membered ring, ring C is 6-membered ring; ring A is substituted or unsubstituted non-aromatic carbocycle or the like; -L1- is —O—(CR6R7)m- or the like; -L2- is —O—(CR6R7)n- or the like; each R6 is independently hydrogen or the like; each R7 is independently hydrogen or the like; each m is independently an integer of 0, 1, 2 or 3; each n is independently an integer of 1, 2 or 3; R2 is substituted or unsubstituted alkyl; R3 is hydrogen or substituted or unsubstituted alkyl; R4 is substituted or unsubstituted alkylcarbonyl or the like.
    Type: Application
    Filed: March 30, 2016
    Publication date: March 22, 2018
    Applicant: Shionogi & Co., Ltd.
    Inventors: Naoki OHYABU, Kana KURAHASHI, Yuji NISHIURA, Manabu KATOU, Keisuke MIYAZAKI, Yoshikazu SASAKI, Toshihiro WADA, Masafumi IWATSU
  • Publication number: 20170253607
    Abstract: The present invention provides useful compounds for HIV protease inhibitor.
    Type: Application
    Filed: September 10, 2015
    Publication date: September 7, 2017
    Applicant: Shionogi & Co., Ltd.
    Inventors: Takashi KAWASUJI, Hidenori MIKAMIYAMA, Naoyuki SUZUKI, Koji MASUDA, Hideki SUGIMOTO, Azusa OKANO, Miho YOSHIDA, Shuichi SUGIYAMA, Kentarou ASAHI, Iori KOZONO, Keisuke MIYAZAKI, Hiroki OZASA, Masayoshi MIYAGAWA
  • Publication number: 20170190729
    Abstract: The present invention is the following Amphotericin B derivative: wherein each symbol is defined in description. The compound of the present invention has 16th position (X) is urea structure, cyclic structure, hydroxyalkyl or substituted monoalkylcarbamoyl. The compound of the present invention has antifungal activity.
    Type: Application
    Filed: June 12, 2015
    Publication date: July 6, 2017
    Applicant: Shionogi & Co., Ltd.
    Inventors: Keisuke MIYAZAKI, Kenji TAKAYA, Takafumi OHARA, Hideki SUGIMOTO, Manabu FUJITANI, Yuki OGATA, Naoyuki SUZUKI
  • Publication number: 20160257641
    Abstract: The object of the present invention is to provide novel compounds having ACC2 inhibiting activity. In addition, the object of the present invention is to provide a pharmaceutical composition comprising the compound. A compound of formula (I): wherein R1 is substituted or unsubstituted fused aromatic heterocyclyl etc., ring A is substituted or unsubstituted non-aromatic carbocycle etc., -L1- is —O—(CR6R7)m- etc., -L2- is —O—(CR6R7)n- etc., each R6 and R7 are independently hydrogen, halogen etc., R2 is substituted or unsubstituted alkyl, R3 is hydrogen or substituted or unsubstituted alkyl, R4 is substituted or unsubstituted alkylcarbonyl etc.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 8, 2016
    Applicant: Shionogi & Co., Ltd.
    Inventors: Naotake KOBAYASHI, Kentarou ASAHI, Yutaka TOMIDA, Masahide OHDAN, Masataka FUMOTO, Yoshikazu SASAKI, Kana KURAHASHI, Takatsugu INOUE, Tomomi URABE, Yuji NISHIURA, Masafumi IWATSU, Keisuke MIYAZAKI, Naoki OHYABU, Toshihiro WADA, Manabu KATOU
  • Patent number: 7894498
    Abstract: A semiconductor laser device including a submount having a front surface and a back surface corresponding to the opposing face that are in parallel with each other and a visible light transmittance of 60% or more; a connection electrode that is formed on the front surface; and a semiconductor laser element that is packaged on the submount through the connection electrode, and is allowed to emit a laser beam in a direction parallel to the front surface.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: February 22, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Keisuke Miyazaki
  • Publication number: 20090067466
    Abstract: A semiconductor laser device comprising: a submount having a front surface and a back surface corresponding to the opposing face that are in parallel with each other and a visible light transmittance of 60% or more; a connection electrode that is formed on the front surface; and a semiconductor laser element that is packaged on the submount through the connection electrode, and is allowed to emit a laser beam in a direction parallel to the front surface.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 12, 2009
    Inventor: Keisuke MIYAZAKI
  • Publication number: 20070165686
    Abstract: An n-type GaAs buffer layer 4, an n-type GaInP intermediate layer 6, an n-type AlGaInP cladding layer 8, a non-doped MQW active layer 10, a p-type AlGaInP cladding layer 12, a p-type AlGaInP cladding layer 14 and a p-type GaAs cap layer 16 are formed on an n-type GaAs substrate 2. The p-type cladding layer 14 and the p-type cap layer 16 are formed in a ridge portion 15, and a narrow width portion 17 is formed including an upper portion of the n-type substrate 2 and the layers there above. An SiO2 film 18 is formed on the side surfaces of the ridge portion 15, the surfaces of the narrow width portion 17 and the surface of a step portion 2a of the n-type substrate 2. A p-side electrode layer 23 is formed on the surfaces of the SiO2 film 18 formed on ridge portion 15 and the narrow width portion 17.
    Type: Application
    Filed: January 11, 2007
    Publication date: July 19, 2007
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Keisuke Miyazaki
  • Patent number: 7180925
    Abstract: A light confinement layer constructed of a semiconductor that has a refractive index different from that of p-type second cladding layers is formed to a small film thickness of not greater than 2 ?m (about 0.5 ?m) on the whole surface of ridge portions of two semiconductor lasers. Thus, the light confinement layer on the ridge portions is made roughly flat so as to be easily removable by etching. As a result, the exposure of p-type second cladding layers of the ridge portions due to deep etching is prevented to allow the confinement of light into the p-type cladding layers to be stably effected. A dielectric film is formed on the light confinement layer and reinforces the current constriction function lost by the reduction in the thickness of the light confinement layer.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: February 20, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiaki Ueda, Keisuke Miyazaki, Kazuhiko Wada, Masaki Tatsumi, Taiji Morimoto