Patents by Inventor Kunihiko Nakano

Kunihiko Nakano 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: 10744422
    Abstract: Provided is a separation device, including: a gas-liquid contact flow passage having a distillate discharge port formed on one end side and a bottom product discharge port formed on another end side; a raw material liquid introduction port formed between the distillate discharge port and the bottom product discharge port in the gas-liquid contact flow passage; a stripping section, which is provided between the raw material liquid introduction port and the bottom product discharge port and is configured to heat a liquid in the gas-liquid contact flow passage; a rectification section, which is provided between the raw material liquid introduction port and the distillate discharge port and is configured to cool a gas in the gas-liquid contact flow passage; and a porous body arranged in the gas-liquid contact flow passage.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 18, 2020
    Assignee: IHI CORPORATION
    Inventors: Naoki Sato, Kunihiko Nakano, Takuya Yoshinoya, Yuping Liu, Ryutaro Nakayama
  • Publication number: 20190060781
    Abstract: Provided is a separation device, including: a gas-liquid contact flow passage having a distillate discharge port formed on one end side and a bottom product discharge port formed on another end side; a raw material liquid introduction port formed between the distillate discharge port and the bottom product discharge port in the gas-liquid contact flow passage; a stripping section, which is provided between the raw material liquid introduction port and the bottom product discharge port and is configured to heat a liquid in the gas-liquid contact flow passage; a rectification section, which is provided between the raw material liquid introduction port and the distillate discharge port and is configured to cool a gas in the gas-liquid contact flow passage; and a porous body arranged in the gas-liquid contact flow passage.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Applicant: IHI CORPORATION
    Inventors: Naoki SATO, Kunihiko NAKANO, Takuya YOSHINOYA, Yuping LIU, Ryutaro NAKAYAMA
  • Patent number: 8951182
    Abstract: A method for vitrification of waste to reduce the formation of persistent secondary phases comprising separating at least one glass frit constituent from an initial glass frit to form a modified glass frit. The waste, modified glass frit, and the at least one glass frit constituent are mixed together with the modified glass frit and the at least one glass frit constituent being added as separate components. The resulting mixture is vitrified.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: February 10, 2015
    Assignee: EnergySolutions, LLC
    Inventors: Akito Yamazaki, Yoshihiro Endo, Katsuyuki Shirato, Kunihiko Nakano, Ian L. Pegg, Hao Gan, Keith Matlack, Innocent Joseph, Bradley W. Bowan, II
  • Publication number: 20140066684
    Abstract: A method for vitrification of waste to reduce the formation of persistent secondary phases comprising separating at least one glass frit constituent from an initial glass frit to form a modified glass frit. The waste, modified glass frit, and the at least one glass frit constituent are mixed together with the modified glass frit and the at least one glass frit constituent being added as separate components. The resulting mixture is vitrified.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 6, 2014
    Applicant: EnergySolutions, LLC
    Inventors: Akito Yamazaki, Yoshihiro Endo, Katsuyuki Shirato, Kunihiko Nakano, Ian L. Pegg, Hao Gan, Keith Matlack, Innocent Joseph, Bradley W. Bowan, II
  • Patent number: 8530718
    Abstract: A method for vitrification of high level waste to reduce the formation of persistent secondary phases comprising the steps of providing a high level waste for vitrification; providing a glass frit additive for mixing with said high level waste; redistributing selected constituents of said glass frit for mixing separately as raw chemicals with said high level waste; and, feeding said high level waste, said glass frit additive, and the redistributed glass frit constituents to a melter for vitrification of said high level waste so that formation of secondary phases is suppressed.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: September 10, 2013
    Assignee: EnergySolutions, LLC
    Inventors: Akito Yamazaki, Yoshihiro Endo, Katsuyuki Shirato, Kunihiko Nakano, Ian L. Pegg, Hao Gan, Keith Matlack, Innocent Joseph, Bradley W. Bowan, II
  • Publication number: 20100285945
    Abstract: A method for vitrification of high level waste to reduce the formation of persistent secondary phases comprising the steps of providing a high level waste for vitrification; providing a glass frit additive for mixing with said high level waste; redistributing selected constituents of said glass frit for mixing separately as raw chemicals with said high level waste; and, feeding said high level waste, said glass frit additive, and the redistributed glass frit constituents to a melter for vitrification of said high level waste so that formation of secondary phases is suppressed.
    Type: Application
    Filed: September 15, 2008
    Publication date: November 11, 2010
    Applicant: ENERGY SOLUTIONS, LLC
    Inventors: Akito Yamazaki, Yoshihiro Endo, Katsuyuki Shirato, Kunihiko Nakano, Ian L. Pegg, Gan Hao, Keith Matlack, Joseph Innocent, Bradley W. Bowan, II
  • Patent number: 5422448
    Abstract: A contact piece for a rotary encoder is an unitary piece having a terminal, a thin plate spring, and a bent-back section on the tip of the thin plate spring. The bent-back section is bent at an angle of approximately 180 degrees in the plane. The contact brush is located on the bent-back section. In one embodiment, the terminal, thin plate spring, bent-back section and contact brush are stamped from the same metal plate. In another embodiment, the terminal, thin plate spring and bent-back section are stamped from the same metal plate and a separate contact brush is connected to the bent-back section. The contact piece is pushed in from the bottom side of the rotary encoder housing, and the contact brush is set such that contact is made with an electrode pattern. When a rotating plate turns, a pulse having a low or high signal is generated. This configuration provides the rotary encoder with an adequately long span S, which can be precisely set and easily produced.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: June 6, 1995
    Assignee: SMK Corp.
    Inventors: Kunihiko Nakano, Kiyohiko Kumazawa, Kazuo Amagai