This inventor holds 4 USPTO granted patents. Top assignees: Seikosha Co., Ltd., Seiko Precision Inc.. Active years: 1990-1998.
Location History:
- Chiba, JP (1990 - 1992)
- Yotsukaido, JP (1995 - 1998)
Company Filing History:
Years Active: 1990-1998
Title: Isamu Ishii: Innovator in Camera Technology
Introduction
Isamu Ishii is a notable inventor based in Yotsukaido, Japan. He has made significant contributions to the field of camera technology, holding a total of 4 patents. His innovative designs focus on enhancing the functionality and reliability of cameras, particularly in power management and distance measurement.
Latest Patents
One of Ishii's latest patents is a "Detecting circuit and method for detecting power interruption in a camera." This invention addresses the issue of power interruptions in battery-operated cameras. It features a first memory area that retains essential operational data regardless of power source interruptions. The second memory area, powered by the battery, stores data dependent on the first. By comparing the data in both memory areas, the camera can reliably detect power interruptions, ensuring that the camera initializes correctly and maintains operational integrity.
Another significant patent is the "Distance measuring device for camera." This device simplifies the construction of distance measurement systems by calculating distance based on the duration of integration. It utilizes pulsed light projected toward an object and employs a selecting circuit to output voltages from current-voltage converting circuits. The device determines the distance to an object by integrating the output voltage until it exceeds a reference voltage, allowing for accurate distance measurement with fewer components.
Career Highlights
Throughout his career, Isamu Ishii has worked with prominent companies such as Seikosha Co., Ltd. and Seiko Precision Inc. His experience in these organizations has contributed to his expertise in camera technology and innovation.
Collaborations
Ishii has collaborated with notable individuals in the field, including Yoshiyuki Iwamatsu and Hiroaki Ishida. These collaborations have likely fostered an environment of creativity and innovation, leading to advancements in camera technology.
Conclusion
Isamu Ishii's contributions to camera technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the development of reliable and efficient camera systems.