This inventor holds 22 USPTO granted patents and 1 EPO patent, primarily in Plasma Mass Spectrometry. Top assignees: Seiko Instruments Inc, Hitachi High-Tech Science Corporation, Sii Nanotechnology Inc.. Active years: 1989-2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiba, JP (1996 - 2012)
- Tokyo, JP (1989 - 2024)
Company Filing History:
16 out of 2,903 
4 out of 225 
2 out of 223 Years Active: 1989-2024
Areas of Expertise:
Title: The Innovative Journey of Yoshitomo Nakagawa
Introduction
Yoshitomo Nakagawa, based in Tokyo, Japan, is a renowned inventor with a substantial portfolio of 22 patents. His contributions to technology, particularly in the field of precision engineering, have positioned him as a significant figure in the innovation landscape.
Latest Patents
Among his notable inventions are the "Mask defect repair apparatus" and the "Mask defect repair method." This innovative apparatus enables high-accuracy defect repair without exposing the mask to air during transitions between the repair apparatus and inspection devices. It utilizes charged particle beams, which are finely tuned by a correction unit while simultaneously providing gas to the mask’s defects, thereby facilitating the formation of a deposition film.
Another groundbreaking invention is the "Focused ion beam processing apparatus." This apparatus comprises several critical components including an ion source, a sample stage, a condenser lens, and a specially designed aperture. In its transfer mode, it employs Köhler illumination to optimize focused ion beam processing, ensuring precision in transferring the slit shape onto the sample.
Career Highlights
Yoshitomo Nakagawa has worked with prestigious companies such as Seiko Instruments Inc. and Hitachi High-Tech Science Corporation. His experiences in these innovative environments have undoubtedly contributed to his impressive body of work and the development of his patents.
Collaborations
Throughout his career, Nakagawa has collaborated with talented professionals, including Tetsumasa Ito and Takashi Kaito. These collaborations have enriched his inventive processes and helped foster advancements in their respective fields.
Conclusion
Yoshitomo Nakagawa continues to inspire with his inventive spirit and remarkable contributions to technology. His 22 patents reflect his dedication to innovation and the advancement of precision engineering, ensuring a lasting impact on the industry and future generations of inventors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile