Sotokichi Shintani

This inventor holds 9 USPTO granted patents. Top assignees: Kokusai Denshin Denwa Co., Ltd., Kokusai Denshin Denwa Kabushiki Kaisha. Active years: 1976-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sotokichi Shintani. Retrieved from https://idiyas.com/inventor/sotokichi-shintani

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 76(Granted Patents)

Location History:

Mitaka, JA (1976 - 1977)
Mitaka, JP (1978 - 1981)
Tokyo, JP (1979 - 1984)

Company Filing History:

5 out of 226

Kokusai Denshin Denwa Co., Ltd.

patents

4 out of 339

Kokusai Denshin Denwa Kabushiki Kaisha

patents

Years Active: 1976-1984

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4472812 - Kalman equalizer (1984-09-18),

2. 4368360 - Adaptive control type echo suppressor (1983-01-11),

3. 4285045 - Delay circuit (1981-08-18),

4. 4241443 - Apparatus for reducing a sampling frequency (1980-12-23),

5. 4145747 - Method for establishing a tap coefficient of an adaptive automatic (1979-03-20),

6. 4125899 - Bessel function type automatic delay equalizer (1978-11-14),

7. 4064397 - Automatic equalizer having a coefficient matrix circuit (1977-12-20),

8. 4013981 - Constant-resistance coupled-line type equalizer (1977-03-22),

9. 3987422 - System for detecting signal quality of a phase-modulated wave (1976-10-19),

Title: The Innovations of Sotokichi Shintani

Introduction

Sotokichi Shintani is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of signal processing and communication technologies. With a total of 9 patents to his name, Shintani's work has had a lasting impact on various technological advancements.

Latest Patents

One of his latest inventions is the Kalman equalizer, which provides an improved method for equalizing a transmission line. This advanced equalizer utilizes a complex number fast Kalman equalizer to process complex input signals, allowing for effective equalization of bandwidth division concepts. Additionally, it can equalize Quadrature Amplitude Modulation (QAM) signals that have complex impulse responses. Another significant patent is the adaptive control type echo suppressor. This device compares the levels of voice signals in sending and receiving paths, effectively suppressing echoes by cutting off the sending path when necessary. The design includes a control loop that applies the voice signal from the receiving path to a comparator, ensuring adaptive control of the variable loss circuit.

Career Highlights

Throughout his career, Sotokichi Shintani has worked with prominent companies such as Kokusai Denshin Denwa Co., Ltd. and Kokusai Denshin Denwa Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the telecommunications sector.

Collaborations

Shintani has collaborated with notable individuals in his field, including Hiroshi Sakaki and Hidetaka Yanagidaira. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Sotokichi Shintani's contributions to the field of signal processing and communication technologies are commendable. His innovative patents and collaborations have significantly advanced the industry, showcasing his expertise and dedication to technological progress.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]