This inventor holds 3 USPTO granted patents. Top assignees: Victor Company of Japan, Limited, Other. Active years: 1990-2001.
Location History:
- Yokahama, JP (1990)
- Yokohama, JP (1991 - 2001)
Company Filing History:
2 out of 2,887 
1 out of 834,350 Years Active: 1990-2001
Title: Masakatsu Kai: Innovator in Optical Technologies
Introduction
Masakatsu Kai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technologies, holding a total of 3 patents. His work focuses on methods and apparatuses that enhance the control and modulation of light.
Latest Patents
One of his latest patents is a method and apparatus for controlling photointensity and/or luminous flux density of a signal light. This invention provides a method of controlling light and an apparatus capable of extracting large and speedy optical responses from photoresponsive elements. The control light is emitted from a light source, and the signal light is converged by a lens and illuminated onto a film photoelement filled with a photoresponsive composition. By manipulating the control light, the transmittance and/or refractive index of the signal light can be reversibly adjusted, allowing for effective modulation of photointensity.
Another significant patent is the reflective optical rotary encoder disc. This device detects the angular speed or position of a rotatable member using a light beam reflected from a specially designed encoder disc. The disc features an annular encoder track composed of angularly spaced pit units, which reflect the light beam to produce accurate signals. This innovation enhances the precision of angular measurements in various applications.
Career Highlights
Masakatsu Kai has worked with the Victor Company of Japan, Limited, where he contributed to advancements in optical technologies. His experience in this reputable company has allowed him to refine his skills and innovate in the field.
Collaborations
Throughout his career, Masakatsu has collaborated with notable individuals such as Makoto Itonaga and Nobuaki Nakamura. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Masakatsu Kai is a distinguished inventor whose work in optical technologies has led to significant advancements. His patents reflect a deep understanding of light control and modulation, showcasing his innovative spirit. His contributions continue to influence the field and inspire future developments.