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For the Inventor, By the Inventor

Yamanashi, Japan

Hirotoshi Tanaka

USPTO Granted Patents = 15

Average Co-Inventor Count = 5.5

ph-index = 8

Forward Citations = 231(Granted Patents)


Location History:

  • Hachioji, JP (1982 - 1987)
  • Kitatsuru, JP (1989 - 1991)
  • Yamanashi, JP (1989 - 1992)
  • Kokubunji, JP (1994 - 1995)

Company Filing History:

goldMedal15 out of 42,485 
 
Hitachi, Ltd.
 patents

Years Active: 1982-1995

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15 patents (USPTO):
1. 5426784 - Serial to parallel data converting circuit (1995-06-20),
2. 5281865 - Flip-flop circuit (1994-01-25),
3. 5166553 - Current mirror circuit employing depletion mode FETs (1992-11-24),
4. 5132752 - Field effect transistor (1992-07-21),
5. 5068605 - Semiconductor integrated circuit device and method of testing the same (1991-11-26),
6. 5021686 - Logic circuit (1991-06-04),
7. 4954866 - Semiconductor integrated circuit memory (1990-09-04),
8. 4881044 - Amplifying circuit (1989-11-14),
9. 4857769 - Threshold voltage fluctuation compensation circuit for FETS (1989-08-15),
10. 4847550 - Semiconductor circuit (1989-07-11),
11. 4825145 - Constant current circuit (1989-04-25),
12. 4803527 - Semiconductor integrated circuit device having semi-insulator substrate (1989-02-07),
13. 4697110 - Fluctuation-free input buffer (1987-09-29),
14. 4518868 - Superconductive large-scale integrated circuit chip (1985-05-21),
15. 4316265 - Memory device with high speed memory cell selection mechanism (1982-02-16),

Title: Hirotoshi Tanaka: Innovator in Data Conversion Technology

Introduction

Hirotoshi Tanaka is a prominent inventor based in Yamanashi, Japan. He has made significant contributions to the field of data conversion technology, holding a total of 15 patents. His innovative work has been instrumental in advancing the efficiency and functionality of electronic circuits.

Latest Patents

One of Tanaka's latest patents is a serial to parallel data converting circuit. This invention features a shift register that receives serial data and outputs parallel data in synchronism with the timing of the received serial data. The design includes a shift register group that receives bit outputs of the parallel data, with the number of bits set according to specific conditions. Additionally, the circuit incorporates multiple coincidence circuits that detect agreement between a preset data starting pattern and the bit arrangement of the data. A selector then chooses a set of parallel outputs based on the signals from these coincidence circuits. This innovative approach allows for high-speed operations while simplifying control logic. Another notable invention is a flip-flop circuit that processes complementary data signals, outputting corresponding complementary signals. This circuit also includes a driving gate means controlled by a clock signal, enhancing its functionality.

Career Highlights

Hirotoshi Tanaka is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies. His work has not only contributed to the company's success but has also influenced the broader field of electronics.

Collaborations

Tanaka has collaborated with notable coworkers, including Nobuo Kotera and Satoshi Tanaka. Their combined expertise has fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Hirotoshi Tanaka's contributions to data conversion technology exemplify the impact of innovative thinking in the electronics industry. His patents reflect a commitment to enhancing the efficiency of electronic circuits, making him a significant figure in his field.

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