Location History:
- Tokyo, JA (1977)
- Mitaka, JA (1976 - 1978)
- Mitaki, JP (1979)
- Mitaka, JP (1978 - 1985)
- Tokyo, JP (1985)
Company Filing History:
Years Active: 1976-1985
Title: Seisuke Yamanaka: Innovator in Solid State Imaging Technology
Introduction: Seisuke Yamanaka, based in Mitaka, Japan, is a prolific inventor known for his contributions to the field of solid state imaging devices. With an impressive portfolio of 27 patents to his name, Yamanaka has significantly influenced the development of technology used in video cameras and image pick-up devices.
Latest Patents: Among his latest innovative patents are two notable inventions. The first is a solid state image pick-up device that features a matrix of first and second photo-sensitive elements. This device includes vertical shift registers that facilitate the shifting of charges and transfer gates that manage the interaction between elements and registers. The optical shutter is designed to ensure simultaneous exposure of the first and second elements to light, with sophisticated control by a system controller. This setup allows for a highly efficient reading of signals within a specific frame period.
The second patent involves a clamp circuit tailored for use in video cameras equipped with an image pick-up device. This innovative circuit clamps the black level of the output signal by utilizing an optical black-detecting portion across the ineffective picture area. The design cleverly ensures that the pulse width of the clamp pulse immediately after the vertical blanking interval is greater than other clamp pulses, optimizing performance during horizontal scanning intervals.
Career Highlights: Seisuke Yamanaka is currently employed at Sony Corporation, a leader in technological innovation. His work has been vital in enhancing the performance and capabilities of imaging technology that is essential in modern cameras.
Collaborations: Throughout his career, Yamanaka has collaborated with other esteemed inventors, including Toshimichi Nishimura and Fumio Nagumo. These collaborations have allowed for the exchange of ideas that fuel further advancements in imaging technologies.
Conclusion: Seisuke Yamanaka stands out as a key figure in the evolution of solid state image pick-up devices. His extensive patent portfolio reflects his dedication and innovative spirit, making significant contributions to the future of imaging technology.