logo

For the Inventor, By the Inventor

Hitachi, Japan

Kazumasa Ohsono

This inventor holds 14 USPTO granted patents and 3 published patent applications. Top assignees: Hitachi Cable, Inc., Nippon Telegraph and Telephone Corporation, Hitachi Metals, Ltd.. Active years: 2008-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumasa Ohsono. Retrieved from https://idiyas.com/inventor/kazumasa-ohsono

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

USPTO Granted Patents = 14 

Average Co-Inventor Count = 5.0

ph-index = 3

Forward Citations = 45(Granted Patents)


Location History:

  • Tokyo, JP (2008 - 2014)
  • Hitachi, JP (2008 - 2015)

Company Filing History:

goldMedal12 out of 836 
 
Hitachi Cable, Inc.
 patents
silverMedal4 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
bronzeMedal2 out of 2,333 
 
Hitachi Metals, Ltd.
 patents
4. 1 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
5. 1 out of 44 
 
Toyota School Foundation
 patents
where one patent can have more than one assignee

Years Active: 2008-2015

Loading Chart...
14 patents (USPTO):Explore Patents
1. 9052432 - Multicore fiber (2015-06-09),
2. 8800323 - Method of sealing air holes in an optical fiber (2014-08-12),
3. 8472769 - Optical fiber, end part processing method of optical fiber, and end part processing apparatus of optical fiber (2013-06-25),
4. 7903695 - Optical fiber laser and exciting method using same (2011-03-08),
5. 7857525 - Optical connector (2010-12-28),
6. 7813386 - Optical fiber for an optical fiber laser, method for fabricating the same, and optical fiber laser (2010-10-12),
7. 7769058 - Optical fiber laser (2010-08-03),
8. 7684449 - Optical fiber for fiber laser device and fiber laser device using same (2010-03-23),
9. 7658550 - Optical fiber, optical fiber connecting method, and optical connector (2010-02-09),
10. 7583877 - Optical fiber, optical fiber connection structure and optical connector (2009-09-01),
11. 7555184 - Optical fiber, end face structure of optical fiber assembly, and optical connector (2009-06-30),
12. 7393143 - Optical connector and connection structure of optical fibers (2008-07-01),
13. 7376315 - Optical fiber, optical fiber connecting method, and optical connector (2008-05-20),
14. 7349610 - Optical fiber coiled cord (2008-03-25),

Title: Kazumasa Ohsono: Innovator in Optical Fiber Technology

Introduction

Kazumasa Ohsono is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of optical fiber technology, holding a total of 14 patents. His innovative work has advanced the capabilities and efficiency of optical fibers, making them more effective for various applications.

Latest Patents

Ohsono's latest patents include a multicore fiber design and a method for sealing air holes in optical fibers. The multicore fiber features cores positioned at the vertexes of a polygonal ring, with a cladding that includes sub medium regions. This design reduces crosstalk between adjacent cores, enhancing performance. His method of sealing air holes involves filling voids around the core with a light-permeable substance, ensuring a better connection between optical fibers.

Career Highlights

Throughout his career, Kazumasa Ohsono has worked with notable companies such as Hitachi Cable, Inc. and Nippon Telegraph and Telephone Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical fiber technology.

Collaborations

Ohsono has collaborated with esteemed colleagues, including Bing Yao and Yoshinori Kurosawa. Their combined expertise has contributed to the advancement of optical fiber technologies.

Conclusion

Kazumasa Ohsono's contributions to optical fiber technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in optical communication 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]
Loading…