Patents by Inventor Masakazu Watanabe

Masakazu Watanabe 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: 20240088212
    Abstract: A semiconductor device includes a semiconductor layer having an element region and a termination region located around the element region. The termination region includes a first breakdown voltage holding structure disposed in a first depth range of the semiconductor layer, and a second breakdown voltage holding structure disposed in a second depth range different from the first depth range of the semiconductor layer and arranged so as to face the first breakdown voltage holding structure in a depth direction of the semiconductor layer. At least one of the first breakdown voltage holding structure or the second breakdown voltage holding structure includes a RESURF layer. An electric field intensity distribution of the first breakdown voltage holding structure and an electric field intensity distribution of the second breakdown voltage holding structure have an opposite relationship of height from an inner peripheral side toward an outer peripheral side of the termination region.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 14, 2024
    Inventors: MASAKAZU WATANABE, YASUHIRO HIRABAYASHI
  • Patent number: 11920841
    Abstract: An air-conditioning apparatus includes a main circuit in which a compressor, a flow switching device, an indoor heat exchanger, a pressure reducing device, and a plurality of parallel heat exchangers connected in parallel with each other are connected by pipes, a bypass pipe, a flow control device provided to the bypass pipe and configured to adjust a flow rate of refrigerant flowing through the bypass pipe, an evaporating pressure sensor configured to measure an evaporating pressure of the refrigerant, and a controller. The air-conditioning apparatus is configured to operate in a normal heating operation mode and a heating-defrosting operation mode. When an operation associated with the normal heating operation mode is switched to an operation associated with the heating-defrosting operation mode, the controller adjusts an opening degree of the flow control device using the evaporating pressure in the parallel heat exchanger and a driving frequency of the compressor.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 5, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shohei Ishimura, Soshi Ikeda, Kazuya Watanabe, Hideto Nakao, Masakazu Kondo, Yasuhide Hayamaru, Yusuke Tashiro, Masakazu Sato, Atsushi Kawashima
  • Publication number: 20230412964
    Abstract: A mixing device is provided. The mixing device includes: an input unit, inputting sounds; multiple output units, outputting the sounds; a sound setting operator, setting a sound setting value that is a setting value relating to the sounds; a selection operator, selecting the output unit of a target for setting the sound setting value; a setting value acquisition means, acquiring the sound setting value set by the sound setting operator with respect to the output unit selected by the selection operator; and a mixing means, for each of the output units, mixing the sounds input at the input unit based on the sound setting value corresponding to the output unit and being the sound setting value acquired by the setting value acquisition means.
    Type: Application
    Filed: May 3, 2023
    Publication date: December 21, 2023
    Applicant: Roland Corporation
    Inventor: Masakazu Watanabe
  • Patent number: 11646208
    Abstract: A method for manufacturing a semiconductor device is provided. The method includes forming an organosilicon compound layer on a surface of an oxide semiconductor substrate, heating the oxide semiconductor substrate provided with the organosilicon compound layer at a first temperature to form a silicon diffusion layer inside the oxide semiconductor substrate, and removing the organosilicon compound layer from the surface of the oxide semiconductor substrate after heating the oxide semiconductor substrate at the first temperature.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: May 9, 2023
    Assignee: DENSO CORPORATION
    Inventors: Masakazu Watanabe, Shuhei Eguchi
  • Publication number: 20220181164
    Abstract: A method for manufacturing a semiconductor device is provided. The method includes forming an organosilicon compound layer on a surface of an oxide semiconductor substrate, heating the oxide semiconductor substrate provided with the organosilicon compound layer at a first temperature to form a silicon diffusion layer inside the oxide semiconductor substrate, and removing the organosilicon compound layer from the surface of the oxide semiconductor substrate after heating the oxide semiconductor substrate at the first temperature.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Inventors: Masakazu WATANABE, Shuhei EGUCHI
  • Patent number: 11153509
    Abstract: A distribution assistance apparatus and a distribution assistance method are provided. An input and output IF mixes a sound input from an HS microphone or a built-in microphone with a sound signal of distribution data received from a portable terminal and outputs the sound. Even when an addition process or an effect is applied to distribution data in the portable terminal, a sound input from the HS microphone or the built-in microphone can be output through a monitor at that point in time without causing a latency.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 19, 2021
    Assignee: Roland Corporation
    Inventor: Masakazu Watanabe
  • Publication number: 20210168303
    Abstract: A distribution assistance apparatus and a distribution assistance method are provided. An input and output IF mixes a sound input from an HS microphone or a built-in microphone with a sound signal of distribution data received from a portable terminal and outputs the sound. Even when an addition process or an effect is applied to distribution data in the portable terminal, a sound input from the HS microphone or the built-in microphone can be output through a monitor at that point in time without causing a latency.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 3, 2021
    Applicant: Roland Corporation
    Inventor: Masakazu WATANABE
  • Patent number: 10937763
    Abstract: A semiconductor package includes a leadframe having a first island and second island each having an upper surface corresponding with an upper surface of the leadframe. One or more tie bars couple the first island with the second island. At least one tie bar has a protrusion extending from the upper surface of the leadframe and configured to substantially prevent a flow of a solder between the first and second islands. A first die couples with the leadframe at the first island and a second die couples with the leadframe at the second island. At least one of the tie bars has a recess at a lower surface of the leadframe. The leadframe includes a slit between the first and second island.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 2, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Masakazu Watanabe
  • Publication number: 20190115315
    Abstract: A semiconductor package includes a leadframe having a first island and second island each having an upper surface corresponding with an upper surface of the leadframe. One or more tie bars couple the first island with the second island. At least one tie bar has a protrusion extending from the upper surface of the leadframe and configured to substantially prevent a flow of a solder between the first and second islands. A first die couples with the leadframe at the first island and a second die couples with the leadframe at the second island. At least one of the tie bars has a recess at a lower surface of the leadframe. The leadframe includes a slit between the first and second island.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Masakazu WATANABE
  • Patent number: 10186498
    Abstract: A semiconductor package includes a leadframe having a first island and second island each having an upper surface corresponding with an upper surface of the leadframe. One or more tie bars couple the first island with the second island. At least one tie bar has a protrusion extending from the upper surface of the leadframe and configured to substantially prevent a flow of a solder between the first and second islands. A first die couples with the leadframe at the first island and a second die couples with the leadframe at the second island. At least one of the tie bars has a recess at a lower surface of the leadframe. The leadframe includes a slit between the first and second island.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 22, 2019
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Masakazu Watanabe
  • Publication number: 20170033055
    Abstract: A semiconductor package includes a leadframe having a first island and second island each having an upper surface corresponding with an upper surface of the leadframe. One or more tie bars couple the first island with the second island. At least one tie bar has a protrusion extending from the upper surface of the leadframe and configured to substantially prevent a flow of a solder between the first and second islands. A first die couples with the leadframe at the first island and a second die couples with the leadframe at the second island. At least one of the tie bars has a recess at a lower surface of the leadframe. The leadframe includes a slit between the first and second island.
    Type: Application
    Filed: December 30, 2015
    Publication date: February 2, 2017
    Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Masakazu Watanabe
  • Publication number: 20160276887
    Abstract: A stator provided with coils that are interconnected by distributed windings on a stator core of a rotating electric machine having: a stator core module comprising a stator core wherein one part of a linear conductor portion of the coil is disposed in a slot; and a mold end, formed through insulator molding of a coil end portion of the coil, wherein: the linear conductor portion of the stator core module comprises a first junction portion at a conductor end portion that is disposed protruding from the stator core toward the mold end side; and the coil end portion of the mold end comprises a second junction portion at a conductor portion disposed protruding from an end portion of the insulator mold toward the stator core module side; having a structure wherein the first junction portion and the second junction portion are joined.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Applicant: Nidec Copal Corporation
    Inventors: Masakazu WATANABE, Yoshinori FUKASAKU, Masato IWASE, Koki KUNII, Hirofumi NAGASAWA
  • Publication number: 20160254718
    Abstract: A segment conductor that is a conductive element of a coil wound in a distributed winding in a stator core of a rotating electric machine is formed, through press forming and is provided with a pair of straight conductor portions and a bent conductor portion that connects together one end side of the pair of straight conductor portions. Moreover, one part of the segment conductor is formed, through press forming, so as to be thinner than another part. Specifically, a part that is exposed from the stator core is formed, through press forming, so as to be thinner than a part that is contained in a slot of the stator core. The stator has a structure wherein a plurality of segment conductors are disposed in a distributed winding in the stator core. The rotating electric machine is equipped with this stator. The vehicle is equipped with this rotating electric machine.
    Type: Application
    Filed: February 22, 2016
    Publication date: September 1, 2016
    Applicant: Nidec Copal Corporation
    Inventors: Masakazu WATANABE, Yoshinori FUKASAKU, Masato IWASE, Koki KUNII, Hirofumi NAGASAWA, Shinji KOIKE
  • Patent number: 9293555
    Abstract: A semiconductor device includes a semiconductor substrate; an insulating film arranged on the semiconductor substrate; an electrode that contacts a portion of a side surface of the insulating film; a first passivation film that is arranged extending from the electrode to the insulating film, and contacts a surface of the insulating film, and contacts a surface of the electrode; and a second passivation film that is arranged on the first passivation film. A difference between a linear expansion coefficient of the first passivation film and a linear expansion coefficient of the insulating film is smaller than a difference between the linear expansion coefficient of the first passivation film and a linear expansion coefficient of the electrode, and a position where the first passivation film contacts a boundary between the electrode and the insulating film is positioned lower than an upper surface of the insulating film.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: March 22, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masakazu Watanabe
  • Publication number: 20140035110
    Abstract: A semiconductor device includes a semiconductor substrate; an insulating film arranged on the semiconductor substrate; an electrode that contacts a portion of a side surface of the insulating film; a first passivation film that is arranged extending from the electrode to the insulating film, and contacts a surface of the insulating film, and contacts a surface of the electrode; and a second passivation film that is arranged on the first passivation film. A difference between a linear expansion coefficient of the first passivation film and a linear expansion coefficient of the insulating film is smaller than a difference between the linear expansion coefficient of the first passivation film and a linear expansion coefficient of the electrode, and a position where the first passivation film contacts a boundary between the electrode and the insulating film is positioned lower than an upper surface of the insulating film.
    Type: Application
    Filed: July 17, 2013
    Publication date: February 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masakazu WATANABE
  • Patent number: 8633511
    Abstract: A semiconductor device provided with: an island and an island which are separated from each other; leads which approach the islands at one end; a control element which is attached to the island and is connected to a lead through a thin metal wire; and a switching element which is attached to the island and is connected to the lead through a metal wire. Further, the thin metal wire and the thin metal wire are arranged so as to the intersect.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: January 21, 2014
    Assignee: ON Semiconductor Trading, Ltd.
    Inventors: Masakazu Watanabe, Takashi Kuramochi, Masahiro Hatanai
  • Patent number: 8489933
    Abstract: A data processing device for memory dump collection, the data processing device includes: a processor to issue a first interrupt upon instructions to collect a memory dump being entered, to issue a second interrupt for running a program put in an address indicated by a reset vector upon the first interrupt being issued, and to record the memory dump in a storage unit in a process of running the program upon the second interrupt being issued.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: July 16, 2013
    Assignee: Fujitsu Limited
    Inventors: Kazuhiro Yoshida, Masakazu Watanabe, Nobuhiro Tachino, Kenji Kaneshige
  • Publication number: 20120102370
    Abstract: A data processing device for memory dump collection, the data processing device includes: a processor to issue a first interrupt upon instructions to collect a memory dump being entered, to issue a second interrupt for running a program put in an address indicated by a reset vector upon the first interrupt being issued, and to record the memory dump in a storage unit in a process of running the program upon the second interrupt being issued.
    Type: Application
    Filed: April 26, 2011
    Publication date: April 26, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Kazuhiro YOSHIDA, Masakazu Watanabe, Nobuhiro Tachino, Kenji Kaneshige
  • Publication number: 20110309408
    Abstract: A semiconductor device provided with: an island and an island which are separated from each other; leads which approach the islands at one end; a control element which is attached to the island and is connected to a lead through a thin metal wire; and a switching element which is attached to the island and is connected to the lead through a metal wire. Further, the thin metal wire and the thin metal wire are arranged so as to the intersect.
    Type: Application
    Filed: February 25, 2010
    Publication date: December 22, 2011
    Applicant: ON Semiconductor Trading, Ltd.
    Inventors: Masakazu Watanabe, Takashi Kuramochi, Masahiro Hatanai
  • Patent number: 7767898
    Abstract: A display system for an electronic musical instrument includes an automatic performance information storage device for storing automatic performance information. The display system also includes a display device for displaying formulated musical notation based on the automatic performance information stored by that automatic performance information storage device. A performance tempo-setting device is provided for setting performance tempo. The length of a graphic corresponding to the length of a musical note displayed on said display device is set according to the performance tempo set by the performance tempo setting device. The display system also includes a scroll device that is adapted to scroll at a set speed regardless of the performance tempo.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: August 3, 2010
    Assignee: Roland Corporation
    Inventors: Masayuki Nakayama, Masakazu Watanabe