This inventor holds 2 USPTO granted patents. Top assignees: Anelva Corporation, Hitachi, Ltd.. Active years: 1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tama, JP (1983)
- Fuchu, JP (1983)
Company Filing History:

Years Active: 1983
Title: Masashi Nakatsukasa: Innovator in Vacuum Treatment Technology
Introduction
Masashi Nakatsukasa is a notable inventor based in Tama, Japan. He has made significant contributions to the field of vacuum treatment technology, holding a total of 2 patents. His work focuses on improving processes and apparatuses used in various industrial applications.
Latest Patents
One of Nakatsukasa's latest patents is an "Apparatus for performing continuous treatment in vacuum." This innovative apparatus includes an inlet chamber, a first intermediate chamber, at least one vacuum treating chamber, a second intermediate chamber, and a withdrawing chamber arranged in a specific order for the transfer of base plates. The design features an opening device that is normally closed and opens when a base plate is transferred through it. Additionally, a conveyor device is mounted in each chamber to convey base plates horizontally, along with an evacuating device for maintaining the vacuum. A base plate storing device is also included in the first and second intermediate chambers, enhancing the efficiency of the treatment process.
Another significant patent is the "Sputtering apparatus comprising control means for preventing impurity." This invention involves a main chamber for sputtering and a preliminary chamber for processing substrates before sputtering. A gate valve is strategically placed between the chambers, which opens when the pressure in the preliminary chamber is reduced below that of the main chamber. This innovative approach ensures that the sputtering process is carried out under optimal conditions, minimizing impurities.
Career Highlights
Throughout his career, Nakatsukasa has worked with prominent companies such as Anelva Corporation and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in vacuum technology.
Collaborations
Some of Nakatsukasa's notable coworkers include Nobuyuki Takahashi and Susumu Aiuchi. Their collaboration has likely fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.
Conclusion
Masashi Nakatsukasa is a distinguished inventor whose work in vacuum treatment technology has led to significant advancements in the field. His patents reflect a commitment to innovation and efficiency, making him a valuable contributor to industrial technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile