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For the Inventor, By the Inventor

Yokohama, Japan

Masumi Ito

This inventor holds 33 USPTO granted patents and 1 published patent application, primarily in Optical Fiber Technology. Top assignees: Sumitomo Electric Industries, Limited, Mitsubishi Chemical Corporation, Mitsubishi Kasei Corporation. Active years: 1990-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masumi Ito. Retrieved from https://idiyas.com/inventor/masumi-ito

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

USPTO Granted Patents = 33 

% Patents Active = 97.0

Average Co-Inventor Count = 3.8

ph-index = 9

Forward Citations = 289(Granted Patents)


Location History:

  • Yokohama, JP (1990 - 2015)
  • Osaka, JP (1993 - 2024)

Company Filing History:

goldMedal27 out of 10,641 
 
Sumitomo Electric Industries, Limited
 patents
silverMedal4 out of 2,423 
 
Mitsubishi Chemical Corporation
 patents
bronzeMedal2 out of 499 
 
Mitsubishi Kasei Corporation
 patents
4. 2 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
5. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1990-2024

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Areas of Expertise:
Optical Fiber
Glass Preform
Single-Mode Fibers
Optical Waveguide
Optical Connector
Grating
Fluorine Compound
VAD Process
Sol-Gel Method
Rare Earth Elements
Optical Switch
Oxide Catalyst
33 patents (USPTO):Explore Patents
1. 12012349 - Glass fine particle deposit and method for manufacturing glass preform (2024-06-18),
2. 9186078 - Optical fiber sheet (2015-11-17),
3. 6625360 - Single-mode optical fibers and fabrication methods thereof (2003-09-23),
4. 5895515 - Increasing a fluorine compound flow rate during a VAD process (1999-04-20),
5. 5883990 - Low transmission loss optical fiber having a grating (1999-03-16),
6. 5867618 - Optical fiber grating and method of manufacturing the same (1999-02-02),
7. 5859944 - Optical connector (1999-01-12),
8. 5790726 - Optical waveguide and process for producing it (1998-08-04),
9. 5788734 - Method for drawing glass preform for optical fiber (1998-08-04),
10. 5755849 - Method for elongating glass preform (1998-05-26),
11. 5693115 - Process for production of glass preform for optical fiber including (1997-12-02),
12. 5676725 - Method of manufacturing single-mode optical fiber (1997-10-14),
13. 5627933 - Optical waveguide and process for producing it (1997-05-06),
14. 5591870 - Process for producing a vanadium-phosphorus oxide catalyst precursor (1997-01-07),
15. 5530144 - Process for producing a phosphorus-vanadium oxide catalyst precursor, (1996-06-25),

Title: The Innovative Journey of Masumi Ito

Introduction: Masumi Ito is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Masumi Ito holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to innovation.

Career Highlights: With over two decades of experience in the tech industry, Masumi Ito has worked for leading research institutions and multinational corporations, spearheading projects that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Masumi Ito has collaborated with top universities and cutting-edge startups, fostering a culture of creativity and forward thinking in the pursuit of technological advancement.

Conclusion: Masumi Ito's passion for innovation and his relentless drive to push the boundaries of what is possible make him a true pioneer in the world of technology.

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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