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For the Inventor, By the Inventor

Tokyo, Japan

Toshiaki Masuhara

This inventor holds 42 USPTO granted patents, primarily in Semiconductor Devices. Top assignees: Hitachi, Ltd., Hitachi Maxell, Limited, Hitachi Vlsi Engineering Corp.. Active years: 1977-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiaki Masuhara. Retrieved from https://idiyas.com/inventor/toshiaki-masuhara

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

USPTO Granted Patents = 42

% Patents Active = 100.0

Average Co-Inventor Count = 5.1

ph-index = 20

Forward Citations = 1,326(Granted Patents)


Location History:

  • Tokorozawa, JA (1977)
  • Hachioji, JA (1977 - 1978)
  • Hachioji, JP (1980 - 1986)
  • Nishitama, JP (1985 - 1992)
  • Hinode, JP (1985 - 1994)
  • Tokyo, JP (1985 - 2001)

Company Filing History:

goldMedal42 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal2 out of 1,112 
 
Hitachi Maxell, Limited
 patents
bronzeMedal1 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
4. 1 out of 6 
 
Hitachi, Vlsi Eng. Corp.
 patents
where one patent can have more than one assignee

Years Active: 1977-2001

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Areas of Expertise:
Semiconductor Memory
Integrated Circuit
MOS Devices
Neural Networks
Transistor
Signal Processor
Data Bus Lines
Static Random Access Memory
Homo-Junction Bipolar Transistor
CMOS
Capacitance
Imaging Device
42 patents (USPTO):Explore Patents
1. 6282611 - Digital information system, digital audio signal processor and signal converter (2001-08-28),
2. 5426745 - Apparatus including a pair of neural networks having disparate functions (1995-06-20),
3. 5332910 - Semiconductor optical device with nanowhiskers (1994-07-26),
4. 5237528 - Semiconductor memory (1993-08-17),
5. 5214496 - Semiconductor memory (1993-05-25),
6. 5172335 - Semiconductor memory with divided bit load and data bus lines (1992-12-15),
7. 5163111 - Customized personal terminal device (1992-11-10),
8. 5132771 - Semiconductor memory device having flip-flop circuits (1992-07-21),
9. 5091325 - Process for making MOS devices for low-temperature operation (1992-02-25),
10. 5041892 - Homo-junction bipolar transistor having high base concentration and (1991-08-20),
11. 5028975 - Semiconductor devices and a process for producing the same (1991-07-02),
12. 4949145 - Homo-junction bipolar transistor having high base concentration and (1990-08-14),
13. 4942556 - Semiconductor memory device (1990-07-17),
14. 4937790 - Semiconductor memory device (1990-06-26),
15. 4935901 - Semiconductor memory with divided bit load and data bus lines (1990-06-19),

Title: Toshiaki Masuhara: A Pioneer in Digital Information Systems and Audio Processing

Introduction

Toshiaki Masuhara is a prominent inventor based in Tokyo, Japan, known for his substantial contributions to the fields of digital information systems and audio processing. With an impressive portfolio of 42 patents, Masuhara has made significant advancements that are shaping the way we interact with digital signals and audio technologies.

Latest Patents

Among Toshiaki Masuhara's latest innovations are patents for a digital information system, a digital audio signal processor, and a signal converter. His digital information system enables the sale of information with commercial value in the form of a digital signal. This system seamlessly connects a digital signal source directly to a player for storing and reproducing specified information. Furthermore, his audio processor allows for both slow and fast playback without compromising sound quality, featuring a data compressor and a data extender with straightforward configurations. This setup not only enhances user experience but also incorporates a self-diagnosis function, allowing the system to utilize defective memory chips economically.

Career Highlights

Masuhara has established a robust career, notably working at prominent companies such as Hitachi, Ltd. and Hitachi Maxell, Limited. His role in these organizations allowed him to leverage his innovative thinking and technical skills, contributing to the advancement of technology in the digital realm.

Collaborations

Throughout his career, Toshiaki Masuhara collaborated with various talented individuals, including Osamu Minato and Yoshio Sakai. These collaborations have been instrumental in enriching his inventions and pushing the boundaries of technological capabilities in digital information systems.

Conclusion

Toshiaki Masuhara's contributions to the fields of digital information and audio processing highlight the importance of innovation in technology. His commitment to developing user-friendly systems and reliable processing techniques continues to inspire future generations of inventors and technologists. With a solid background and a legacy of over 40 patents, Masuhara stands as a notable figure in the sphere of technological inventions.

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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