This inventor holds 13 USPTO granted patents and 7 published patent applications. Top assignees: Renesas Electronics Corporation, Mitsubishi Denki Kabushiki Kaisha, Renesas Technology Corp.. Active years: 2000-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hyogo, JP (2000 - 2003)
- Tokyo, JP (2001 - 2011)
- Kanagawa, JP (2018)
Company Filing History:



Years Active: 2000-2026
Title: Innovations of Tatsuo Kasaoka
Introduction
Tatsuo Kasaoka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 13 patents. His work focuses on improving semiconductor devices and their manufacturing processes.
Latest Patents
Kasaoka's latest patents include a semiconductor device and a manufacturing method that effectively reduces the influence of inter-wiring capacitance, even as photoelectric conversion elements are miniaturized. This innovation involves a plurality of transfer transistors, each containing a photoelectric conversion element and a signal output section. Additionally, he has developed a method of manufacturing semiconductor devices that utilizes both a normal photomask and a phase shift mask for defining interconnect patterns. This method includes several steps, such as preparing masks, stacking wiring layers, and forming openings in the interlayer insulating film.
Career Highlights
Throughout his career, Kasaoka has worked with notable companies, including Mitsubishi Electric Corporation and Renesas Electronics Corporation. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to various innovative projects.
Collaborations
Kasaoka has collaborated with several talented individuals in the field, including Atsushi Hachisuka and Atsushi Amo. These collaborations have further enhanced his work and led to advancements in semiconductor technology.
Conclusion
Tatsuo Kasaoka's contributions to semiconductor technology through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative approaches continue to influence the development of advanced semiconductor devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile