Location History:
- Tachikawa, JP (2002)
- Fuchu-shi, JP (2004)
- Fuchu, JP (2004 - 2011)
- Shinjuku-ku, JP (2011)
- Tokyo, JP (1999 - 2013)
Company Filing History:
22 out of 2,528 
1 out of 38 Years Active: 1999-2013
Title: **Hideaki Mitsui: A Pioneer in Semiconductor Technology**
Introduction
Hideaki Mitsui, based in Tokyo, Japan, is a distinguished inventor with an impressive portfolio of 22 patents. His contributions primarily focus on semiconductor manufacturing technologies, paving the way for advancements in the field. Mitsui's innovative approaches have significantly impacted the way photomasks and transfer masks are produced, playing a crucial role in the semiconductor industry.
Latest Patents
Among his most recent patents, Hideaki Mitsui has developed methods that enhance the manufacturing processes of transfer masks and semiconductor devices. One notable patent describes a method for detecting internal defects in transfer masks using transmitted light quantity distribution data from an inspection apparatus. In this method, a die-to-die comparison inspection is employed, where inspection light is directed onto different regions of a thin film to obtain transmitted light quantity distributions. By comparing these distributions, a difference distribution is created, enabling the selection of transfer masks without high-density plotting regions.
Another significant patent concerns the design of photomask blanks intended for fabricating phase shift masks. This innovation involves a light-transmissive substrate designed with a phase shift part that creates a predetermined phase difference in transmitted exposure light. The photomask blank includes a light-shielding part and an etching mask film specifically adapted to facilitate the manufacturing process while ensuring high precision and reliability.
Career Highlights
Throughout his career, Hideaki Mitsui has made notable contributions while working at renowned companies such as Hoya Corporation and DuPont Photomasks, Inc. His expertise in semiconductor technologies has enabled him to play an integral role in advancing the capabilities of photomask production.
Collaborations
Mitsui has collaborated with several talented individuals, including his colleagues Osamu Nozawa and Yuuki Shiota. Their collective efforts have fostered an environment of innovation, driving significant advancements within the semiconductor manufacturing community.
Conclusion
Hideaki Mitsui stands out as a prominent figure in the semiconductor industry, with his 22 patents reflecting his innovative spirit and technical expertise. His methods and designs for manufacturing transfer masks and photomask blanks have not only contributed to the efficiency of production processes but have also underpinned the technological advancements powerfully shaping the industry today. As the semiconductor landscape continues to evolve, Mitsui's contributions will undoubtedly remain influential.
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.