Company Filing History:

6 out of 77

Coulter Systems Corporation

patents

1 out of 1

Richard Equipment Company, Inc.

Years Active: 1977-1990

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4947039 - Flat stationary field light beam scanning device (1990-08-07),

2. 4628367 - Method and device for reading digital data in an optical mass memory (1986-12-09),

3. 4533941 - Method and apparatus for half-tone reproduction of a varying tone (1985-08-06),

4. 4515879 - Optical mass memory system using electrophotography (1985-05-07),

5. 4504126 - Digital plate maker system and method (1985-03-12),

6. 4493549 - Optical system for imaging an electrophotographic member (1985-01-15),

7. 4408868 - Digital plate maker system and method (1983-10-11),

8. 4266674 - Optoelectronic device for automatically inspecting a group of cigarettes (1981-05-12),

9. 4054928 - Laser operated scanning and printing system (1977-10-18),

Title: Innovations of John C Butler

Introduction

John C Butler is a notable inventor based in Centerville, OH (US), recognized for his contributions to technology with a total of nine patents. His work primarily focuses on advancements in light beam scanning devices and optical mass memory systems.

Latest Patents

One of his latest patents is a "Flat stationary field light beam scanning device." This invention features a scanning light beam and a flat stationary scanning surface, utilizing an f sine theta lens system to focus the light beam. The device employs a galvanometer mirror for rapid scanning and a pivoting mirror for slow scanning, allowing for precise raster scanning of the light beam. Another significant patent is for a "Method and device for reading digital data in an optical mass memory." This invention involves forming an electrostatic image of binary data on an electrophotographic member, which is then transferred to a dual-layer transparent synthetic resin storage medium. The reading process utilizes deflected rays of light to sense the data stored on the medium.

Career Highlights

Throughout his career, John C Butler has worked with several companies, including Coulter Systems Corporation and Richard Equipment Company, Inc. His experience in these organizations has contributed to his innovative developments in the field of optical technology.

Collaborations

Some of his notable coworkers include Lysle D Cahill and John F Keane, who have collaborated with him on various projects, enhancing the scope of his inventions.

Conclusion

John C Butler's innovative spirit and technical expertise have led to significant advancements in light beam scanning and optical data storage technologies. His contributions continue to influence the field and inspire future innovations.

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