Patents by Inventor Mayumi Sakamoto

Mayumi Sakamoto 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).

  • Halogenated zinc phthalocyanine pigment for color filter and method for producing halogenated zinc phthalocyanine pigment for color filter
    Patent number: 11976199
    Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm?1 when a peak intensity at 650±10 cm?1 is regarded as 100%.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 7, 2024
    Assignee: DIC CORPORATION
    Inventors: Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Mayumi Tokuoka, Katsunori Shimada, Keisuke Fujisawa
  • Bluetooth communication system for drivers of vehicles
    Patent number: 7907975
    Abstract: A system is provided that enables communications between a driver of a vehicle and a person outside the vehicle, between a rider of a motorcycle and a fellow rider of the same vehicle, or between a driver of a vehicle and another driver of another vehicle. A Bluetooth communication system comprises a Bluetooth communication device mountable to a helmet, and an indicator unit having an indicator disposed in a viewing range of a driver of such a vehicle as a car or a boat. It further comprises a transmitting module disposed in the Bluetooth communication device for transmitting an indication signal to the indicator in response to reception of a calling signal and a receiving module disposed in the indicator unit for driving the indicator in response to reception of the indication signal. The indicator indicates when a call arrives at a Bluetooth communication device mounted on a helmet.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: March 15, 2011
    Assignees: Honda Access Corporation, Fujitsu Limited
    Inventors: Tsuneaki Sakamoto, Mayumi Sakamoto, legal representative, Masashi Hino, Yasuo Ohishi, Mitsuhiko Yamamoto, Masao Kikuchi, Shinako Watabe
  • Bluetooth Communication System for Drivers of Vehicules
    Publication number: 20080220718
    Abstract: A system is provided that enables communications between a driver of a vehicle and a person outside the vehicle, between a rider of a motorcycle and a fellow rider of the same vehicle, or between a driver of a vehicle and another driver of another vehicle. A Bluetooth communication system comprises a Bluetooth communication device mountable to a helmet, and an indicator unit having an indicator disposed in a viewing range of a driver of such a vehicle as a car or a boat. It further comprises a transmitting module disposed in the Bluetooth communication device for transmitting an indication signal to the indicator in response to reception of a calling signal and a receiving module disposed in the indicator unit for driving the indicator in response to reception of the indication signal. The indicator indicates when a call arrives at a Bluetooth communication device mounted on a helmet.
    Type: Application
    Filed: September 12, 2002
    Publication date: September 11, 2008
    Inventors: Tsuneaki Sakamoto, Mayumi Sakamoto, Masashi Hino, Yasuo Ohishi, Mitsuhiko Yamamoto, Masao Kikuchi, Shinako Watabe