Yokohama, Japan

Masahiro Yamazaki

This inventor holds 66 USPTO granted patents and 17 published patent applications, plus 7 CIPO patents and 9 EPO patents, primarily in Portable Terminal Technology (CPC class H04N). Top assignees: Maxell, Ltd., Kureha Corporation, Nippon Zeon Company, Ltd.. Active years: 1977-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Yamazaki. Retrieved from https://idiyas.com/inventor/masahiro-yamazaki

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

USPTO Granted Patents = 66 

% Patents Active = 84.8


 

Average Co-Inventor Count = 3.1

ph-index = 10

Forward Citations = 452(Granted Patents)

Forward Citations (Not Self Cited) = 438(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kamakura, JA (1977)
  • Kamakura, JP (1978 - 1980)
  • Kudamatsu, JP (1982 - 1992)
  • Katsuta, JP (1992)
  • Omitama, JP (2010 - 2014)
  • Ibaraki, JP (1992 - 2015)
  • Wakayama, JP (2015)
  • Kanagawa, JP (2013 - 2017)
  • Chiyoda-ku, JP (2014 - 2020)
  • Yokohama, JP (1981 - 2022)
  • Tokyo, JP (2014 - 2022)

Company Filing History:

goldMedal15 out of 985 
 
Maxell, Ltd.
 patents
silverMedal9 out of 336 
 
Kureha Corporation
 patents
bronzeMedal9 out of 598 
 
Nippon Zeon Company, Ltd.
 patents
4. 7 out of 42,726 
 
Hitachi, Ltd.
 patents
5. 5 out of 1,112 
 
Hitachi Maxell, Limited
 patents
6. 4 out of 3,711 
 
Nippon Steel Corporation
 patents
7. 3 out of 28,934 
 
Ricoh Company, Ltd.
 patents
8. 3 out of 28 
 
Usui Co., Ltd.
 patents
9. 2 out of 1,147 
 
Agc Inc.
 patents
10. 2 out of 97 
 
Casio Hitachi Mobile Communications Co., Ltd.
 patents
11. 2 out of 39,371 
 
Fujitsu Corporation
 patents
12. 2 out of 1,267 
 
Hitachi Koki Co., Ltd.
 patents
13. 2 out of 1,269 
 
Toppan Printing Co., Ltd.
 patents
14. 1 out of 365 
 
Hitachi Consumer Electronics Co., Ltd.
 patents
15. 1 out of 149 
 
Lenovo Innovations Limited (Hong Kong)
 patents
16. 1 out of 16,586 
 
Mitsubishi Electric Corporation
 patents
17. 1 out of 21 
 
Mitsubishi Electronic Corporation
 patents
18. 1 out of 63 
 
Nec Casio Mobile Communications, Ltd.
 patents
19. 1 out of 36,676 
 
Nec Corporation
 patents
20. 1 out of 1,102 
 
Nippon Steel Sumitomo Metal Corporation
 patents
where one patent can have more than one assignee

Years Active: 1977-2026

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Areas of Expertise:
Portable Terminal
Information Processing
Glass Composition
Steel Pipe
Fuel Injection
Biodegradable Polyester
Cooling Device
Electromagnetic Stirrer
Gas-Barrier Structure
Packing Device
Polyglycolic Acid
66 patents (USPTO):Explore Patents

Title: Masahiro Yamazaki: A Pioneer in Portable Communication Technologies

Introduction

Masahiro Yamazaki is a notable inventor based in Yokohama, Japan, renowned for his contributions to portable communication technologies. Holding an impressive portfolio of 60 patents, Yamazaki has made significant advancements in the field of information display and processing systems. His work has not only enhanced user experiences but has also paved the way for innovative portable devices.

Latest Patents

Among his latest inventions are multiple patents concerning portable terminals, information processing apparatuses, content display systems, and content display methods. His innovative portable terminal includes a receiving unit to obtain content information, a communication unit for external device interaction, and a display unit to visually present content. Additionally, it features an acquiring unit to obtain identification information for the displayed content, along with an operation unit for user interactions. Notably, the control unit enables the transmission of identification information to an external device, effectively terminating the content display upon user command.

Career Highlights

Yamazaki has had a fruitful career, having worked with well-known companies such as Maxell, Ltd. and Nippon Zeon Company, Ltd. His time at these organizations has allowed him to refine his innovative skills and push the boundaries of technology further. He has demonstrated a consistent focus on practical applications of his inventions, especially in portable communication devices.

Collaborations

Throughout his career, Yamazaki has collaborated with talented professionals, including Mayumi Nakade and Takashi Matsubara. These collaborations have fostered a creative environment where innovative ideas can flourish and lead to groundbreaking inventions in the tech industry.

Conclusion

Masahiro Yamazaki's work exemplifies the spirit of innovation and progress in portable communication technology. With a solid foundation of patents and collaborations, he continues to influence the industry and inspire future inventors. His contributions will undoubtedly play a crucial role in shaping the future of information processing and display systems.

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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