Location History:
- Tokyo, JP (1992 - 2012)
- Tokyo-to, JP (2002 - 2020)
Company Filing History:
23 out of 3,192 
2 out of 15,844 
1 out of 14 Years Active: 1992-2020
Title: **Hiroshi Mohri: Innovator in Photomask Technology**
Introduction
Hiroshi Mohri is a distinguished inventor hailing from Tokyo, Japan. With an impressive portfolio of 24 patents to his name, he has made significant contributions to the field of photomask technology, particularly in manufacturing and correcting photomasks.
Latest Patents
Among his notable inventions, Hiroshi's latest patents include innovative methods for creating photomasks that enhance projection exposures. His work provides a halftone mask comprised of an assist pattern and employs an ArF excimer laser as the exposing source. This method allows for off-axis illumination and aims to maintain the focal depth magnification effect while forming a transferred image with high contrast of the main pattern. The photomask features a main pattern that is transferred to the target surface while the assist pattern, composed of a semi-transparent film made of the same material, does not transfer. Hiroshi's expertise in generating specific retardation effects between transmitted light through the main and assist patterns significantly advances photomask capabilities in the industry.
Career Highlights
Throughout his career, Hiroshi Mohri has collaborated with notable companies, including Dai Nippon Printing Co., Ltd. and Mitsubishi Electric Corporation. His work at these firms has greatly influenced advancements in their respective technologies, especially in printing and electronics.
Collaborations
Hiroshi has worked alongside esteemed colleagues such as Masahiro Takahashi and Hiroyuki Miyashita. Their combined expertise has fostered an innovative environment that has led to significant breakthroughs in photomask technology and related fields.
Conclusion
Hiroshi Mohri stands as a prominent figure in the realm of photomask inventions. With his numerous patents and successful collaborations, he continues to contribute to advancements in technology that shape the future of the industry. His work exemplifies the impact of innovation and invention in modern science and engineering.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.