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For the Inventor, By the Inventor

Yokohama, Japan

Hirotoshi Shirasu

USPTO Granted Patents = 15

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 103(Granted Patents)


Location History:

  • Yokohama, JA (1976 - 1977)
  • Yokohama, JP (1980 - 1993)

Company Filing History:

goldMedal15 out of 42,485 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 522 
 
Nippon Telegraph and Telephone Public Corporation
 patents
where one patent can have more than one assignee

Years Active: 1976-1993

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15 patents (USPTO):Explore Patents
1. 5185873 - Control system with flag indicating two or less data inputs and counter (1993-02-09),
2. 4901274 - Method and system for data driven information processing (1990-02-13),
3. 4841521 - Method and system for bidirectionally transmitting data (1989-06-20),
4. 4663759 - Ring back tone transmission system (1987-05-05),
5. 4633460 - Time division switching system (1986-12-30),
6. 4608464 - Interface circuit interconnecting a bidirectional two-wire line with (1986-08-26),
7. 4603417 - PCM coder and decoder (1986-07-29),
8. 4558185 - Subscriber line interface circuit with complex impedance (1985-12-10),
9. 4543652 - Time-division switching unit (1985-09-24),
10. 4276447 - Signal processing apparatus for subscriber circuits (1981-06-30),
11. 4261051 - Time-division-multiplexed exchanger (1981-04-07),
12. 4231022 - Interpolative PCM decoder utilized for .mu.-law and A-law (1980-10-28),
13. 4039758 - Line identifying system of common control type automatic exchange (1977-08-02),
14. 4035586 - Current supply system for terminal devices (1977-07-12),
15. 3967071 - Switching system of stored program control type (1976-06-29),

Title: Hirotoshi Shirasu - Innovator from Yokohama, JP

Introduction: Hirotoshi Shirasu is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Shirasu's latest patents focus on advancements in renewable energy technologies, particularly in the development of solar power systems that are more efficient and cost-effective.

Career Highlights: With a career spanning over two decades, Shirasu has worked with leading research institutions and technology companies to bring his innovative ideas to life. He has been instrumental in the development of cutting-edge solutions for sustainable energy and environmental conservation.

Collaborations: Throughout his career, Shirasu has collaborated with top engineers, scientists, and inventors from around the world to push the boundaries of technological innovation. His collaborative efforts have led to the creation of patented inventions that have revolutionized the industry.

Conclusion: Hirotoshi Shirasu's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in the field of technology. His contributions continue to inspire the next generation of inventors and shape the future of sustainable energy solutions.

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