Patents by Inventor Mitsutoshi Watanabe

Mitsutoshi 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: 20220235469
    Abstract: A sliding component having a wear-resistant coating includes a sliding component formed of a Ni alloy, and a wear-resistant coating provided on a sliding surface of the sliding component. The wear-resistant coating has, at least on the surface side thereof, an Al-containing Co alloy layer which contains Co as a main component, at least one of W, Ni, Mo, Fe, Si, and C, Cr, and 0.3% by mass or more and 26% by mass or less of Al.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Applicant: IHI Corporation
    Inventors: Hiroki YOSHIZAWA, Mitsutoshi WATANABE, Kenta KAWAHARA
  • Patent number: 11127951
    Abstract: An alkaline secondary battery disclosed in the present application includes a positive electrode containing a positive electrode active material, a negative electrode, and a separator. The positive electrode active material contains a mixture of a silver oxide and a silver-bismuth complex oxide. A discharge curve is obtained when the battery that is fully charged is discharged with a constant current until a battery voltage drops to 1.0 V. The battery voltage at a point on the discharge curve where x (%) of a total discharge capacity has been discharged from the battery since start of discharge is represented by Vx (V). The discharge curve satisfies V10?V70?0.08, has a step in the range of 70?x?90, and shows that a size of the step represented by V70?V90 is 0.04 or more and 0.15 or less.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 21, 2021
    Assignee: Maxell Holdings, Ltd.
    Inventors: Yusuke Inoue, Mitsutoshi Watanabe
  • Patent number: 11073773
    Abstract: According to one embodiment, the image forming apparatus includes a developing device and a control unit. The developing device includes a rotator for rotating to cause a developer contained in a container to flow, and performs development using the developer. The control unit has a first control for rotating the rotator in a first direction during development. The control unit has a second control that rotates the rotator in a second direction opposite to the first direction at a predetermined timing when development is not performed. When the second control is performed a plurality of times during a predetermined period, the control unit gradually reduces an interval at which the second control is performed.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: July 27, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Mitsutoshi Watanabe, Hirotaka Fukuyama
  • Publication number: 20210126290
    Abstract: An alkaline secondary battery disclosed in the present application includes: a positive electrode that is provided with a positive electrode mixture layer containing a silver oxide; a negative electrode; and an alkaline electrolyte. The positive electrode mixture layer further contains insulating inorganic particles and carbon particles. The carbon particles include graphite particles and carbon black particles. The negative electrode contains zinc-based particles selected from zinc particles and zinc alloy particles. The alkaline electrolyte contains potassium hydroxide or sodium hydroxide, and lithium hydroxide, and polyalkylene glycols. Further, in a charging method and a charging device for an alkaline secondary battery disclosed in the present application, a charging voltage during constant-voltage charging is set so that in the positive electrode, an oxidation reaction from silver to silver oxide (I) progresses while an oxidation reaction from silver oxide (I) to silver oxide (II) does not progress.
    Type: Application
    Filed: January 18, 2019
    Publication date: April 29, 2021
    Applicant: Maxell Holdings, Ltd.
    Inventors: Yusuke INOUE, Mitsutoshi WATANABE
  • Publication number: 20210091385
    Abstract: Provided is a sheet-type cell with excellent reliability. The sheet-type cell of the present invention includes power generation elements, including a positive electrode, a negative electrode, a separator, and an electrolyte solution, and a sheet-type outer case made of a resin film in which the power generation elements are contained. The electrolyte solution is an aqueous electrolyte solution. The resin film has an electrically insulating moisture barrier layer. The sheet-type cell is a primary cell. The moisture barrier layer of the resin film is preferably composed of at least an inorganic oxide. The pH of the electrolyte solution is preferably 3 or more and less than 12.
    Type: Application
    Filed: March 13, 2019
    Publication date: March 25, 2021
    Applicant: Maxell Holdings, Ltd.
    Inventors: Takahiro FURUTANI, Yasuhiro NAKA, Hiroaki ONO, Mitsutoshi WATANABE
  • Patent number: 10950910
    Abstract: Provided are an air cell that has a reduced environmental impact and has favorable discharge characteristics as well as a patch equipped with the air cell. An air cell of the present invention includes, an outer case, which contains a positive electrode having a catalyst layer containing a catalyst and a binder, a negative electrode containing a metal material, a separator, and an electrolytic solution. The electrolytic solution is an aqueous solution with a pH of 3 or more and less than 12. The separator has an air permeability of 10 sec/100 ml or more, or the positive electrode has a porous sheet made of carbon as a current collector. A patch of the present invention includes the air cell of the present invention as a power supply.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: March 16, 2021
    Assignee: Maxell Holdings, Ltd.
    Inventors: Takahiro Furutani, Kunihiko Koyama, Mitsutoshi Watanabe, Hiroaki Ono
  • Patent number: 10894387
    Abstract: A sliding part with a wear resistant coating includes a sliding part, and a wear resistant coating provided on a sliding surface of the sliding part, and made of a cobalt alloy containing chromium and silicon. In the wear resistant coating, oxide particles are dispersed which include an oxide containing chromium and silicon, and have a particle size of 100 ?m or less when a cross section of the wear resistant coating is observed using an optical microscope with a magnification of 100 times.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: January 19, 2021
    Assignee: IHI Corporation
    Inventors: Hiroki Yoshizawa, Mitsutoshi Watanabe, Yukihiro Shimoda
  • Patent number: 10691042
    Abstract: A developing device includes a housing, a developing roller, and a blade. The housing includes a developer chamber and an opening. The developing roller is disposed in the developer chamber, such that a part of the developing roller in a rotational direction thereof is exposed to an outside of the opening. The developer roller includes a sleeve rotatable around a shaft and a magnetic element. The magnetic element has a magnetic polarity opposite to that of a developer and is disposed at an entrance rotational position of the developer roller at which a sleeve region of the sleeve goes into the developer chamber from the outside of the opening. The blade is positioned near a surface of the sleeve to regulate a thickness of the developer on the surface of the sleeve. The thickness of the developer regulated on the sleeve region at the entrance rotational position by the blade is equal to or greater than 0.6 mm and equal to or less than 1.4 mm.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: June 23, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Masato Ogasawara, Shigeru Fujiwara, Mitsutoshi Watanabe
  • Patent number: 10541450
    Abstract: An alkaline secondary battery having excellent charge-discharge cycle characteristics is provided. The alkaline secondary battery includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The positive electrode contains a silver oxide. The negative electrode contains zinc-based particles selected from the group consisting of zinc particles and zinc alloy particles. The separator holds an alkaline electrolyte solution. An anion conductive membrane is disposed between the negative electrode and the separator. The anion conductive membrane includes a polymer as a matrix and particles of at least one metal compound selected from the group consisting of metal oxides, metal hydroxides, metal carbonates, metal sulfates, metal phosphates, metal borates, and metal silicates, which are dispersed in the matrix.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 21, 2020
    Assignee: MAXELL HOLDINGS, LTD.
    Inventor: Mitsutoshi Watanabe
  • Publication number: 20200019086
    Abstract: A developing device includes a housing, a developing roller, and a blade. The housing includes a developer chamber and an opening. The developing roller is disposed in the developer chamber, such that a part of the developing roller in a rotational direction thereof is exposed to an outside of the opening. The developer roller includes a sleeve rotatable around a shaft and a magnetic element. The magnetic element has a magnetic polarity opposite to that of a developer and is disposed at an entrance rotational position of the developer roller at which a sleeve region of the sleeve goes into the developer chamber from the outside of the opening. The blade is positioned near a surface of the sleeve to regulate a thickness of the developer on the surface of the sleeve. The thickness of the developer regulated on the sleeve region at the entrance rotational position by the blade is equal to or greater than 0.6 mm and equal to or less than 1.4 mm.
    Type: Application
    Filed: March 14, 2019
    Publication date: January 16, 2020
    Inventors: Masato OGASAWARA, Shigeru FUJIWARA, Mitsutoshi WATANABE
  • Publication number: 20190363412
    Abstract: Provided are an air cell that has a reduced environmental impact and has favorable discharge characteristics as well as a patch equipped with the air cell. An air cell of the present invention includes, an outer case, which contains a positive electrode having a catalyst layer containing a catalyst and a binder, a negative electrode containing a metal material, a separator, and an electrolytic solution. The electrolytic solution is an aqueous solution with a pH of 3 or more and less than 12. The separator has an air permeability of 10 sec/100 ml or more, or the positive electrode has a porous sheet made of carbon as a current collector. A patch of the present invention includes the air cell of the present invention as a power supply.
    Type: Application
    Filed: September 20, 2017
    Publication date: November 28, 2019
    Applicant: MAXELL HOLDINGS, LTD.
    Inventors: Takahiro FURUTANI, Kunihiko KOYAMA, Mitsutoshi WATANABE, Hiroaki ONO
  • Publication number: 20190350665
    Abstract: Provided is a wearable patch that can reliably interrupt the power supply from the cell after use and can be disposed of as it is. Moreover, provided is a sheet-type cell that can reliably interrupt the power supply after use and can be disposed of safely. The wearable patch is worn on the body and includes a functional element, a drive circuit unit that operates the functional element, and a cell as a power source. A cutting facilitating member is formed to allow a predetermined portion of the wearable patch to be cut with a force of 200 N or less so that the power supply from the cell to the drive circuit unit is interrupted.
    Type: Application
    Filed: January 5, 2018
    Publication date: November 21, 2019
    Applicant: Maxell Holdings, Ltd.
    Inventors: Takahiro FURUTANI, Mitsutoshi WATANABE, Hiroaki ONO
  • Publication number: 20190355990
    Abstract: An alkaline secondary battery disclosed in the present application includes a positive electrode containing a positive electrode active material, a negative electrode, and a separator. The positive electrode active material contains a mixture of a silver oxide and a silver-bismuth complex oxide. A discharge curve is obtained when the battery that is fully charged is discharged with a constant current until a battery voltage drops to 1.0 V. The battery voltage at a point on the discharge curve where x (%) of a total discharge capacity has been discharged from the battery since start of discharge is represented by Vx (V). The discharge curve satisfies V10?V70?0.08, has a step in the range of 70?x?90, and shows that a size of the step represented by V70?V90 is 0.04 or more and 0.15 or less.
    Type: Application
    Filed: March 12, 2018
    Publication date: November 21, 2019
    Applicant: Maxell Holdings, Ltd.
    Inventors: Yusuke INOUE, Mitsutoshi WATANABE
  • Publication number: 20190233949
    Abstract: A slidable component including a wear-resistant coating includes a slidable component, and a wear-resistant coating provided on a slide surface of the slidable component. The wear-resistant coating includes metal particles deposited on the side surface of the slidable component, and containing Ni, Co and Cr, and a first oxide layer covering surfaces of the metal particles, containing an Al oxide as its main component, and containing a Y oxide.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Applicant: IHI Corporation
    Inventors: Hiroki YOSHIZAWA, Mitsutoshi Watanabe, Yukihiro Shimoda
  • Publication number: 20190094800
    Abstract: In accordance with an embodiment, an image forming apparatus comprises a humidity sensor, a developing device, a supply device, an acquisition section, and a controller. The supply device supplies the developing device with the developer based on toner density sensor detecting the toner density and a detection result of the toner density sensor among the developer in the developing device. Based on the detection result of the humidity sensor and a time from the completion of a processing relating to image formation to the start of a processing relating to next image formation, the acquisition section acquires a charge level of the developer in the developing device. Based on a first charge level acquired by the acquisition section at a first time and a second charge level acquired by the acquisition section at a second time after the first time, the controller controls to discharge the toner.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 28, 2019
    Inventors: Satoshi Itaya, Mitsutoshi Watanabe
  • Patent number: 10185241
    Abstract: According to one embodiment, a charger charges a surface of an image carrier by discharge in a wide-angle. A charging bias voltage application section applies a charging bias voltage to the charger. An exposing device forms an electrostatic latent image in a charged image carrier. A toner carrier causes toner to adhere to the electrostatic latent image formed in the image carrier. A developing bias voltage application section applies the developing bias voltage to the toner carrier. In addition, the developing bias voltage application section changes the charging bias voltage in one step and changes the developing bias voltage applied to the toner carrier in multiple steps.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: January 22, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI
    Inventors: Mitsutoshi Watanabe, Sunao Takenaka
  • Patent number: 10175602
    Abstract: According to one embodiment, a charger charges a surface of an image carrier by discharge in a wide-angle. A charging bias voltage application section applies a charging bias voltage to the charger. An exposing device forms an electrostatic latent image in a charged image carrier. A toner carrier causes toner to adhere to the electrostatic latent image formed in the image carrier. A developing bias voltage application section applies the developing bias voltage to the toner carrier. In addition, the developing bias voltage application section changes the charging bias voltage in one step and changes the developing bias voltage applied to the toner carrier in multiple steps.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: January 8, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Mitsutoshi Watanabe, Sunao Takenaka
  • Publication number: 20180254527
    Abstract: An alkaline secondary battery having excellent charge-discharge cycle characteristics is provided. The alkaline secondary battery includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The positive electrode contains a silver oxide. The negative electrode contains zinc-based particles selected from the group consisting of zinc particles and zinc alloy particles. The separator holds an alkaline electrolyte solution. An anion conductive membrane is disposed between the negative electrode and the separator. The anion conductive membrane includes a polymer as a matrix and particles of at least one metal compound selected from the group consisting of metal oxides, metal hydroxides, metal carbonates, metal sulfates, metal phosphates, metal borates, and metal silicates, which are dispersed in the matrix.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 6, 2018
    Applicant: Maxell Holdings, Ltd.
    Inventor: Mitsutoshi WATANABE
  • Publication number: 20180170004
    Abstract: A sliding part with a wear resistant coating includes a sliding part, and a wear resistant coating provided on a sliding surface of the sliding part, and made of a cobalt alloy containing chromium and silicon. In the wear resistant coating, oxide particles are dispersed which include an oxide containing chromium and silicon, and have a particle size of 100 ?m or less when a cross section of the wear resistant coating is observed using an optical microscope with a magnification of 100 times.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 21, 2018
    Applicant: IHI Corporation
    Inventors: Hiroki Yoshizawa, Mitsutoshi Watanabe, Yukihiro Shimoda
  • Publication number: 20170357173
    Abstract: According to one embodiment, a charger charges a surface of an image carrier by discharge in a wide-angle. A charging bias voltage application section applies a charging bias voltage to the charger. An exposing device forms an electrostatic latent image in a charged image carrier. A toner carrier causes toner to adhere to the electrostatic latent image formed in the image carrier. A developing bias voltage application section applies the developing bias voltage to the toner carrier. In addition, the developing bias voltage application section changes the charging bias voltage in one step and changes the developing bias voltage applied to the toner carrier in multiple steps.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Mitsutoshi Watanabe, Sunao Takenaka