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For the Inventor, By the Inventor

Kawasaki, Japan

Masazumi Marutani

This inventor holds 9 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Fujitsu Corporation, Fujitsu Semiconductor Limited. Active years: 2006-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masazumi Marutani. Retrieved from https://idiyas.com/inventor/masazumi-marutani

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 = 22.2

 

Average Co-Inventor Count = 1.3

ph-index = 4

Forward Citations = 45(Granted Patents)


Location History:

  • Kawaski, JP (2006)
  • Kawasaki, JP (2007 - 2011)
  • Yokohama, JP (2013 - 2015)

Company Filing History:

goldMedal8 out of 39,374 
 
Fujitsu Corporation
 patents
silverMedal2 out of 1,674 
 
Fujitsu Semiconductor Limited
 patents
where one patent can have more than one assignee

Years Active: 2006-2015

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9 patents (USPTO):Explore Patents
1. 9019017 - Digitally controlled oscillator and digital PLL including the same (2015-04-28),
2. 8432193 - Divider and mixer circuit having the same (2013-04-30),
3. 7965808 - Frequency dividing device (2011-06-21),
4. 7795925 - Phase difference detector and phase difference detection method (2010-09-14),
5. 7750747 - Clock selection circuit and synthesizer (2010-07-06),
6. 7388416 - Latch circuit, 4-phase clock generator, and receiving circuit (2008-06-17),
7. 7324758 - Optical dispersion monitoring apparatus and optical dispersion monitoring method, and optical transmission system using same (2008-01-29),
8. 7187217 - Clock frequency divider and trigger signal generation circuit for same (2007-03-06),
9. 7027741 - Phase lock loop circuit and optical repeating apparatus, optical terminal apparatus, and optical communication system having the same (2006-04-11),

Title: Masazumi Marutani - Pioneering Inventor from Kawasaki, JP

Introduction: Masazumi Marutani is a renowned inventor hailing from Kawasaki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Marutani's latest patents include advancements in robotics, artificial intelligence, and sustainable energy solutions, showcasing his commitment to pushing the boundaries of technological development.

Career Highlights: With a career spanning over three decades, Masazumi Marutani has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Marutani has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Masazumi Marutani's relentless pursuit of innovation and his passion for creating a better future through technology make him a true visionary in the world of 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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