Patents by Inventor Ko Imai

Ko Imai 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).

  • Electronic percussion instrument and hitting detection method
    Patent number: 11875765
    Abstract: An electronic percussion instrument and a hitting detection method are provided. The electronic percussion instrument includes: a head of which an upper surface is formed as a hitting surface; a body part, which is cylindrical and has an opening at an upper end side, the opening is covered by the head; and a plurality of head sensors provided on an inner peripheral side of the body part and detects a hitting on the hitting surface. The plurality of head sensors are in contact with a lower surface of the head in an area in which a distance from a center of the hitting surface is 50% or more and 75% or less of a radius of the hitting surface.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: January 16, 2024
    Assignee: Roland Corporation
    Inventors: Keita Utsumi, Yutaka Morita, Ko Imai
  • ELECTRONIC PERCUSSION INSTRUMENT AND HITTING DETECTION METHOD
    Publication number: 20210201877
    Abstract: An electronic percussion instrument and a hitting detection method are provided. The electronic percussion instrument includes: a head of which an upper surface is formed as a hitting surface; a body part, which is cylindrical and has an opening at an upper end side, the opening is covered by the head; and a plurality of head sensors provided on an inner peripheral side of the body part and detects a hitting on the hitting surface. The plurality of head sensors are in contact with a lower surface of the head in an area in which a distance from a center of the hitting surface is 50% or more and 75% or less of a radius of the hitting surface.
    Type: Application
    Filed: December 2, 2020
    Publication date: July 1, 2021
    Applicant: Roland Corporation
    Inventors: Keita UTSUMI, Yutaka Morita, Ko Imai
  • Biologically pure cultures of Pseudomonas sorbosoxidans useful for producing 2-keto-L-gulonic acid
    Patent number: 4933289
    Abstract: 2-Keto-L-gulonic acid is produced in a high yield by contacting L-sorbose with a microorganism of Pseudomonas sorbosoxidans, or a processed material thereof.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: June 12, 1990
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Ko Imai, Takeshi Sakane, Ikuo Nogami
  • Method for producing 2-keto-L-gulonic acid
    Patent number: 4892823
    Abstract: 2-Keto-L-gulonic acid is produced in a high yield by contacting L-sorbose with a microorganism of Pseudomonas sorbosoxidans, or a processed material thereof.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: January 9, 1990
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Ko Imai, Takeshi Sakane, Ikuo Nogami
  • Method for producing L(+)-tartaric acid
    Patent number: 4028185
    Abstract: Calcium cis-epoxysuccinate whose average particle size is not larger than 100 micron is converted into calcium L(+)-tartarate by a microorganism in a high concentration and in a better yield. This process is accelerated in the presence of a nonionic type surfactant of the medium.
    Type: Grant
    Filed: May 6, 1976
    Date of Patent: June 7, 1977
    Assignee: Takeda Chemical Ind., Ltd.
    Inventors: Yoshio Kamatani, Hisayoshi Okazaki, Ko Imai, Noriaki Fujita, Yoshio Yamazaki, Katsuhiko Ogino
  • Production of L(+)-tartaric acid
    Patent number: 4013509
    Abstract: Calcium cis-epoxysuccinate is converted into calcium L(+)-tartarate by a microorganism in a high concentration and is a better yield. This process is accelerated in the presence of a nonionic type surfactant of the medium.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: March 22, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshio Kamatani, Hisayoshi Okazaki, Ko Imai, Noriaki Fujita, Yoshio Yamazaki, Katsuhiko Ogino
  • Production of L(+)-tartaric acid
    Patent number: 4011135
    Abstract: L(+)-tartaric acid is produced in a high efficiency from cis-epoxysuccinic acid by a microorganism belonging to the genus Pseudomonas, Agrobacterium or Rhizobium.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: March 8, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshio Kamatani, Hisayoshi Okazaki, Ko Imai, Noriaki Fujita, Yoshio Yamazaki, Katsuhiko Ogino