This inventor holds 7 USPTO granted patents. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1990-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1990-2004
Title: Hisakazu Okamoto: Innovator in Cathode Ray Tube Technology
Introduction
Hisakazu Okamoto is a notable inventor based in Kumagaya, Japan. He has made significant contributions to the field of display technology, particularly in the development of cathode ray tubes (CRTs). With a total of 7 patents to his name, Okamoto's work has had a lasting impact on the industry.
Latest Patents
One of Okamoto's latest patents is for a color cathode ray tube, which features a shadow mask formed by press molding. This mask includes a substantially rectangular mask effective portion shaped like a gently sloped dome, complete with electron beam passage apertures and a skirt portion that extends from the mask's peripheral edge. The skirt has multiple apertures arranged parallel to the edge and spaced apart, with belt portions formed between the apertures and the skirt's extending end edge. Each aperture's width increases from the mask's peripheral edge toward the skirt's extending end edge.
Another significant patent is for a CRT with a neck and stem weld, which includes a glass envelope with a panel that has an inner surface formed with a phosphor screen. The cylindrical neck extends substantially coaxially with the tube axis, housing an electron gun. A stem is welded to the neck's end, featuring a circular disk-like flare made of glass, with stem pins attached to it. The design ensures that the glass portion of the flare surrounds the neck's end from the outside.
Career Highlights
Okamoto is currently employed at Kabushiki Kaisha Toshiba, where he continues to innovate in the field of display technology. His work has been instrumental in advancing CRT technology, which has been widely used in televisions and computer monitors.
Collaborations
Throughout his career, Okamoto has collaborated with notable colleagues, including Hiroyuki Koba and Tetsuya Masumura. These collaborations have contributed to the successful development of various technologies and patents.
Conclusion
Hisakazu Okamoto's contributions to cathode ray tube technology have established him as a prominent figure in the field. His innovative patents and collaborations reflect his commitment to advancing display technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile