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For the Inventor, By the Inventor

Katsuta, Japan

Isao Fukushima

This inventor holds 39 USPTO granted patents, primarily in Magnetic Recording Technology. Top assignees: Hitachi, Ltd., Hitachi Microcomputer Engineering, Ltd., Hitachi Video Engineering, Incorporated. Active years: 1978-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isao Fukushima. Retrieved from https://idiyas.com/inventor/isao-fukushima

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

USPTO Granted Patents = 39

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 10

Forward Citations = 328(Granted Patents)


Location History:

  • Fujisawa, JP (1978 - 1980)
  • Katsuta, JP (1980 - 1989)
  • Ibaraki, JP (1990)

Company Filing History:

goldMedal38 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal4 out of 149 
 
Hitachi Microcomputer Engineering, Ltd.
 patents
bronzeMedal3 out of 67 
 
Hitachi Video Engineering, Incorporated
 patents
4. 1 out of 6 
 
.Engineering, Inc.
 patents
5. 1 out of 61 
 
Hitachi Computer Engineering Co., Ltd.
 patents
6. 1 out of 1 
 
Hitachi Microcomputer Eng. Co.
 patent
7. 1 out of 1 
 
Hitachi Microcomputer Hitachi, Ltd.
 patent
8. 1 out of 9 
 
Hitachi Video Eng. Inc.
 patents
9. 1 out of 1 
 
Hitachi Video Engineering Co., Ltd.
 patent
where one patent can have more than one assignee

Years Active: 1978-1990

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Areas of Expertise:
Video Signal Preamplifier
Multi-Channel Inverter
Magnetic Recording
Motor Control
Noise Detection
Integrated Circuit
Switching Regulator
Phase-Locked Loop
Audio Video Reproduction
Frequency-Voltage Converter
Automatic Gain Control
Dynamic Drive Circuit
39 patents (USPTO):Explore Patents
1. 4956729 - Video signal preamplifier circuit (1990-09-11),
2. 4847742 - Multi-channel inverter circuit (1989-07-11),
3. 4774598 - Slow-motion device of magnetic recording and reproducing apparatus (1988-09-27),
4. 4757394 - Auto-tracking apparatus of a magnetic recording/reproducing apparatus (1988-07-12),
5. 4737864 - Still picture recording system with noise detection and frame counting (1988-04-12),
6. 4724407 - Integrated filter circuit having switchable selected parallel filter (1988-02-09),
7. 4713700 - A recording circuit having means to automatically set the recording (1987-12-15),
8. 4691246 - Apparatus for multiplex recording and reproduction of audio and video (1987-09-01),
9. 4682096 - Switching regulator system for a motor driving circuit (1987-07-21),
10. 4672468 - Magnetic recording apparatus with recording of first and second sound (1987-06-09),
11. 4667168 - Integrated circuit with a phase-locked loop (1987-05-19),
12. 4667120 - Integrated filter circuit with variable frequency characteristics (1987-05-19),
13. 4651067 - Apparatus for driving brushless motor (1987-03-17),
14. 4647960 - Vertical contour emphasis de-emphasis circuit (1987-03-03),
15. 4613914 - Auto-tracking method and apparatus of a magnetic recording/reproducing (1986-09-23),

Title: The Innovative Journey of Inventor Isao Fukushima

Introduction: Isao Fukushima, a pioneering inventor hailing from Katsuta, Japan, has made significant contributions to the world of technology through his groundbreaking innovations and patented inventions.

Latest Patents: Isao Fukushima's latest patents include cutting-edge advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological progress.

Career Highlights: With a career spanning over two decades, Isao Fukushima has established himself as a leading figure in the field of innovation. His work has not only revolutionized industries but has also inspired a new generation of inventors to think creatively and ambitiously.

Collaborations: Throughout his career, Isao Fukushima has collaborated with top research institutions, universities, and tech companies to bring his ideas to life. His ability to work seamlessly in multidisciplinary teams has led to the development of groundbreaking technologies with real-world applications.

Conclusion: In conclusion, Isao Fukushima's relentless pursuit of innovation and his passion for creating a better future through technology have solidified his legacy as a visionary inventor. His contributions continue to shape the landscape of technological advancement, leaving a lasting impact on society as a whole.

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]
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