Location History:
- Hachioji, JP (1982)
- Nishitama, JP (1993)
- Hinode-machi, JP (1996 - 2002)
- Nishitama-gun, JP (2002 - 2003)
- Hinode, JP (2003 - 2005)
- Tokyo, JP (1983 - 2006)
Company Filing History:
34 out of 42,485 
3 out of 1,960 
2 out of 1,641 
Years Active: 1982-2006
Title: The Innovative Contributions of Fumio Murai
Introduction
Fumio Murai, based in Tokyo, Japan, is a prolific inventor with an impressive portfolio of 37 patents. His work has significantly influenced the field of semiconductor manufacturing, particularly through advancements in photomask technology and electron beam projection processes.
Latest Patents
Among his latest contributions, Murai has developed multiple patents focused on enhancing semiconductor device manufacturing. One notable patent is a method involving a semitransparent phase shifting mask, which incorporates a light shielding portion designed to improve pattern accuracy. This innovation optimizes traditional photomask designs by strategically combining transparent and semitransparent areas for superior results.
Another significant patent from Murai addresses the challenges faced during fine processing in electron beam projection methodologies. His approach employs complementarily divided masks, allowing one mask to cater to high-dimensional accuracy while the other supports additional patterns. This segregation effectively lowers current application to critical areas, paving the way for high printing accuracy and improved throughput in the manufacturing process.
Career Highlights
Fumio Murai has made remarkable achievements throughout his career, having worked with prominent companies such as Hitachi, Ltd. and Showa Denko K.K. His experience in these organizations has enabled him to develop groundbreaking technologies that play a vital role in the semiconductor industry.
Collaborations
Throughout his professional journey, Murai has collaborated with notable colleagues, including Norio Hasegawa and Katsuya Hayano. These partnerships have fostered a creative environment, driving forward innovations that have advanced technology and manufacturing processes.
Conclusion
Fumio Murai's extensive contributions through his 37 patents exemplify his profound impact on the semiconductor field. His innovative approaches to photomask design and manufacturing processes continue to influence the industry, highlighting the importance of inventors and their work in driving technological advancement.
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.