This inventor holds 54 USPTO granted patents and 5 EPO patents, primarily in Optical Information Devices (CPC class 369 ). Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 1991-2013.
Inventors with similar research interests:
Location History:
- Ibaragi, JP (1995)
- Ibaraki, JP (1991 - 2010)
- Osaka, JP (1995 - 2013)
Company Filing History:
41 out of 27,375 
13 out of 16,454 
Years Active: 1991-2013
Areas of Expertise:
Title: Innovations by Sadao Mizuno: Pioneering Optical Technologies in Japan
Introduction: Sadao Mizuno, a prolific inventor based in Ibaraki, Japan, holds an impressive portfolio of 54 patents. His groundbreaking work primarily focuses on optical technologies, contributing significantly to advancements in the fields of optical pickup systems and optical information devices.
Latest Patents: Among his latest innovations, Mizuno has developed several notable patents including an optical pickup, an inclination angle detection method, and various optical information devices. These innovations allow for the reliable and accurate detection of relative inclination angles between the end face of a solid immersion lens and the surface of an optical recording medium. His designs include a convergence position modifying unit that adjusts the convergence states of beams according to layers within the optical recording medium. Additionally, the first optical detector detects inclination angles based on variations in light received from two separate light receiving sections.
Furthermore, Mizuno has contributed to the development of an objective lens, an optical head, and an optical disc device. This apparatus is designed to compensate for different aberrations, ensuring high-quality recording and playback characteristics across various optical disc formats, including DVDs and CDs. The objective lens he developed integrates both convex and concave lens elements to optimize optical performance.
Career Highlights: Sadao Mizuno has had a significant impact on the optical technology industry, particularly through his employment at prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His expertise in optical systems has propelled the advancement of consumer electronics and optical media.
Collaborations: Throughout his career, Mizuno has collaborated with esteemed professionals, including Yoshiaki Komma and Hideki Hayashi. These partnerships have enabled him to refine his inventions and push the boundaries of optical technologies even further.
Conclusion: Sadao Mizuno's contributions to optical technology exemplify the spirit of innovation. His extensive patent portfolio and collaborations with leading companies underscore his role as a prominent figure in the realm of optical inventions. As technology continues to evolve, Mizuno’s work remains essential to shaping the future of optical applications.