Patents by Inventor Masaaki Okawa

Masaaki Okawa 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).

  • Compensation technology for display panel
    Patent number: 11183101
    Abstract: A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 23, 2021
    Assignee: Synaptics Incorporated
    Inventors: Masao Orio, Hirobumi Furihata, Susumu Saito, Masaaki Okawa, Takashi Nose
  • Compensation Technology for Display Panel
    Publication number: 20200279519
    Abstract: A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.
    Type: Application
    Filed: November 15, 2018
    Publication date: September 3, 2020
    Applicant: Synaptics Incorporated
    Inventors: Masao Orio, Hirobumi Furihata, Susumu Saito, Masaaki Okawa, Takashi Nose
  • Image processing apparatus, image processing method, display panel driver and display apparatus
    Patent number: 9691347
    Abstract: An image processing apparatus includes a reference value calculating section configured to generate a value that is a weighted average of values of R data, G data, and B data of original RGB data as a reference value. Regarding each of color data such as the R data, the G data, and the B data, a value is calculated that is coincident with a value obtained by adding the value of the color data of the original RGB data to a product of a difference obtained by subtracting the reference value from the value of the color data of the original RGB data and a predetermined coefficient, as a value of the color data of RGB data after saturation expansion.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 27, 2017
    Assignee: Synaptics Japan GK
    Inventors: Masaaki Okawa, Takashi Nose, Hirobumi Furihata, Akio Sugiyama, Yoshiki Kurokawa
  • IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, DISPLAY PANEL DRIVER AND DISPLAY APPARATUS
    Publication number: 20150228090
    Abstract: An image processing apparatus includes a reference value calculating section configured to generate a value that is a weighted average of values of R data, G data, and B data of original RGB data as a reference value. Regarding each of color data such as the R data, the G data, and the B data, a value is calculated that is coincident with a value obtained by adding the value of the color data of the original RGB data to a product of a difference obtained by subtracting the reference value from the value of the color data of the original RGB data and a predetermined coefficient, as a value of the color data of RGB data after saturation expansion.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Masaaki OKAWA, Takashi NOSE, Hirobumi FURIHATA, Akio SUGIYAMA, Yoshiki KUROKAWA
  • Agent for treating textile materials
    Patent number: 5516436
    Abstract: An agent for treating textile materials comprising at least one compound selected from the group consisting of compounds of the general formula (I) ##STR1## wherein X.sub.1 is hydrogen or a halogen, and R.sub.1 is hydrogen, a halogen or an alkyl of 1 to 4 carbon atoms, and compounds of the general formula (II) ##STR2## wherein X.sub.2 is hydrogen or a halogen, R.sub.2 is hydrogen, a halogen or an alkyl of 1 to 4 carbon atoms, and n is an integer of 1 to 3.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: May 14, 1996
    Assignee: Nicca Chemical Co., Ltd.
    Inventors: Juji Uchida, Masakazu Shimada, Takayoshi Kamano, Kuniaki Wakita, Masaaki Okawa