Location History:
- Sayama, JP (1983)
- Numazu, JP (1987)
- Tokyo, JP (1981 - 2006)
- Machida, JP (1989 - 2007)
Company Filing History:
12 out of 28,544 
1 out of 4 
1 out of 6 Years Active: 1981-2007
Title: The Innovative Contributions of Yasuo Sawada
Introduction
Yasuo Sawada is a renowned inventor based in Tokyo, Japan, recognized for his significant contributions to optical information recording technologies. With a career spanning various esteemed companies, Sawada holds a total of 13 patents, reflecting his innovative spirit and expertise in the field.
Latest Patents
Among his latest patents are advancements in optical information recording mediums and information recording methods utilizing these mediums. One notable patent describes an optical information recording medium that integrates a ROM (Read-Only Memory) region featuring precut pits at a track pitch (P) and a RAM (Random Access Memory) region that includes a groove designed to interact with laser light. This technology enables effective information writing and retrieval, with specific design attributes such as wobbled pits in the ROM region and a narrower inter-pit groove width compared to the RAM region. His patent also includes an inventive optical information recording medium that incorporates pre-pits arranged in a line, showcasing grooves with particular depth and width relationships, contributing to enhanced information recording efficiency.
Career Highlights
Throughout his career, Yasuo Sawada has worked with notable companies including Ricoh Company, Ltd. and E.C. Chemical Co., Ltd. His tenure at these organizations has allowed him to develop and refine his innovative ideas, leading to the patents that showcase his expertise in optical technologies.
Collaborations
Sawada has collaborated with talented individuals such as Toru Yashiro and Koji Hirakura, enhancing his inventive process through shared knowledge and expertise. These collaborations have undoubtedly played a role in driving forward the innovative projects that he has been part of.
Conclusion
Yasuo Sawada's impactful inventions in the realm of optical information recording reflect a deep understanding of technology and innovation. His extensive patent portfolio and collaboration with industry professionals highlight his commitment to advancing technology, making him a distinguished figure in the field of invention. His work continues to influence the development of improved informational storage and retrieval systems.
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.