Company Filing History:

13 out of 42,496

Hitachi, Ltd.

patents

2 out of 66

Hitachi Video Engineering, Incorporated

patents

where one patent can have more than one assignee

Years Active: 1988-1993

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5251074 - Method and apparatus for controlling a video signal print system (1993-10-05),

2. 5157414 - Thick film type thermal head and thermal recording device (1992-10-20),

3. 5146323 - Signal processing circuit including a white balance adjusting circuit in (1992-09-08),

4. 5109281 - Video printer with separately stored digital signals printed in separate (1992-04-28),

5. 5079565 - Thermal transfer printing apparatus and ink paper cassette (1992-01-07),

6. 5045951 - Video signal processor and video signal processing method for a video (1991-09-03),

7. 5028993 - Video printer having data are stored in main and sub memories are read (1991-07-02),

8. 4915516 - Thermal transfer recording apparatus with ink paper cassette (1990-04-10),

9. 4901090 - Inked sheet cassette and thermal transfer-type recording apparatus (1990-02-13),

10. 4892425 - Thermal transfer recording apparatus and ink sheet cassette therefor (1990-01-09),

11. 4855840 - Control circuit for video printer (1989-08-08),

12. 4844770 - Thermal-transfer recording apparatus (1989-07-04),

13. 4794404 - Thermal transfer printer (1988-12-27),

Title: Kentaro Hamma: Innovator in Video Signal Control and Thermal Recording Technology

Introduction

Kentaro Hamma is a notable inventor based in Katsuta, Japan. He has made significant contributions to the fields of video signal control and thermal recording technology. With a total of 13 patents to his name, Hamma's work has had a lasting impact on the industry.

Latest Patents

One of Hamma's latest patents is a method and apparatus for controlling a video signal print system. This innovative system allows for the freezing and storing of a specific frame during playback. The recording medium is turned reversely for a prescribed amount based on a printer's instruction, ensuring accurate frame retrieval. Once the frame is selected, it is stored in memory and can be printed when required. Another significant patent is for a thick film type thermal head. This device is produced by forming a heat-resistant layer, an electrode, a heating resistor, and a protective layer on an insulator substrate. The protective layer includes a heat-diffusing coating that enhances thermal conductivity, making it suitable for various applications.

Career Highlights

Kentaro Hamma has worked with prominent companies such as Hitachi, Ltd. and Hitachi Video Engineering Incorporated. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.

Collaborations

Hamma has collaborated with notable coworkers, including Toshihiko Gotoh and Yasunori Kobori. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Kentaro Hamma's contributions to video signal control and thermal recording technology demonstrate his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving technology and enhancing user experience.

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