Company Filing History:

9 out of 42,485

Hitachi, Ltd.

patents

3 out of 1,252

Konishiroku Photo Industry Co., Ltd.

patents

1 out of 61

Hitachi Microcomputer System, Ltd.

patents

4. 1 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1979-2003

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6661594 - Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit (2003-12-09),

2. 5818655 - Signal processing circuit and information recording/reproducing (1998-10-06),

3. 5805024 - Phase lock loop system including a primary phase lock loop apparatus and (1998-09-08),

4. 5774470 - Digital signal processor, error detection method, and recording medium (1998-06-30),

5. 4888561 - Amplifier and display using the former (1989-12-19),

6. 4755768 - Amplifier and display using the former (1988-07-05),

7. 4492450 - Camera with microprocessor (1985-01-08),

8. 4269494 - Battery level warning device (1981-05-26),

9. 4268136 - Camera having an automatic exposure control means (1981-05-19),

10. 4198142 - Power supply resetting circuit for camera (1980-04-15),

11. 4180797 - Digital comparator constructed of IIL (1979-12-25),

Title: Ryushi Shimokawa: Pioneering Innovations in Signal Processing

Introduction: Ryushi Shimokawa from Takasaki, Japan, is a prolific inventor with 11 patents to his name. His groundbreaking work in signal processing has left a lasting impact on the field of magnetic recording/reproducing apparatus.

Latest Patents: Shimokawa's recent patents include a signal processing circuit and information recording/reproducing apparatus that feature innovative techniques for optimizing coefficients of equalizer circuits. These patents showcase his expertise in developing advanced technologies for data processing and storage.

Career Highlights: Throughout his career, Shimokawa has worked with prominent companies such as Hitachi, Ltd. and Konishiroku Photo Industry Co., Ltd. His contributions to these organizations have been instrumental in driving technological advancements in the industry.

Collaborations: Shimokawa has collaborated with esteemed professionals in the field, including Kazuo Shiozawa and Michio Yagi. Together, they have worked on cutting-edge projects that have pushed the boundaries of signal processing technology.

Conclusion: Ryushi Shimokawa's dedication to innovation and his ability to overcome technical challenges make him a true pioneer in the world of inventions. His patents and collaborations serve as a testament to his exceptional talent and drive to create transformative solutions in signal processing.

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.