This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignee: Hitachi, Ltd.. Active years: 1987-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ibaraki, JP (1987 - 1989)
- Minori, JP (2004)
Company Filing History:
Years Active: 1987-2004
Title: Innovations of Yoshitsugu Tsutsumi
Introduction
Yoshitsugu Tsutsumi is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of semiconductor manufacturing and analysis systems. With a total of three patents to his name, Tsutsumi's work has had a considerable impact on technology.
Latest Patents
One of Tsutsumi's latest patents is a method and apparatus for manufacturing semiconductors. This innovation allows for the uniform supply of a liquid raw material and gas required for film formation onto a wafer. The process involves spraying a liquid raw material from a vaporizing nozzle into a vacuum chamber, where it is vaporized by heat from the wafer. Additionally, a gas supply pipe is integrated to ensure that the gas required for the film-forming reaction is also uniformly supplied. The design of the vaporizing nozzle and gas supply pipe is concentric, enhancing the efficiency of the process.
Another significant patent involves an analysis system that employs electron technology. This system features an oil-sealed rotary vacuum pump to evacuate air from a specimen exchange chamber. It incorporates a purge gas supply means that introduces a small quantity of purge gas during the evacuation process, ensuring optimal conditions for analysis.
Career Highlights
Yoshitsugu Tsutsumi is currently employed at Hitachi, Ltd., where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing manufacturing processes and analysis systems, contributing to the overall progress in the industry.
Collaborations
Throughout his career, Tsutsumi has collaborated with notable colleagues, including Masahiro Mase and Takashi Nagaoka. These collaborations have fostered a creative environment that has led to significant advancements in their respective fields.
Conclusion
Yoshitsugu Tsutsumi's contributions to semiconductor manufacturing and analysis systems highlight his role as a leading inventor in Japan. His innovative patents and collaborations with esteemed colleagues underscore the importance of teamwork in driving technological advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile