This inventor holds 3 USPTO granted patents. Top assignee: Nippon Kogaku K.k.. Active years: 1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ohmiya, JP (1988)
- Saitama, JP (1988)
Company Filing History:
Years Active: 1988
Title: Innovations of Tatsumi Ishizeki
Introduction
Tatsumi Ishizeki is a notable inventor based in Ohmiya, Japan. He has made significant contributions to the field of pattern detection and measurement technology. With a total of three patents to his name, Ishizeki's work showcases his expertise and innovative spirit.
Latest Patents
One of his latest patents is a "Pattern detecting apparatus utilizing energy beam." This invention involves a sophisticated system that includes first irradiation means for irradiating a workpiece with a first energy beam. It also features detection means for receiving a second energy beam emitted from the workpiece, allowing for the detection of patterns in the irradiated area. Additionally, the apparatus includes second irradiation means for a third energy beam and discrimination means to determine the sensitivity of the workpiece to the first energy beam. Control means are also integrated to prevent damage to sensitive portions of the workpiece.
Another significant patent is the "Apparatus for measuring dimensions of micropattern." This device utilizes a photoelectric sensor to scan an enlarged image of a pattern. It detects the positions of the leading and trailing edges using a predetermined slice level derived from the photoelectric signal. The slice level is adjusted based on the interval between the edges being measured, ensuring accurate measurements.
Career Highlights
Tatsumi Ishizeki is currently employed at Nippon Kogaku K.K., where he continues to develop innovative technologies. His work has been instrumental in advancing the capabilities of pattern detection and measurement systems.
Collaborations
Ishizeki has collaborated with notable coworkers, including Muneki Hamashima and Kinya Kato. Their combined expertise has contributed to the success of various projects within their field.
Conclusion
Tatsumi Ishizeki's contributions to the field of pattern detection and measurement are noteworthy. His innovative patents reflect his dedication to advancing technology in this area. Through his work at Nippon Kogaku K.K. and collaborations with talented colleagues, Ishizeki continues to make a significant impact in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile