logo

For the Inventor, By the Inventor

Tokyo, Japan

Makoto Shibutani

This inventor holds 23 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent, primarily in Optical Communication. Top assignees: Nec Corporation, Nec Coproration, Nec Laboratories America, Inc.. Active years: 1990-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Shibutani. Retrieved from https://idiyas.com/inventor/makoto-shibutani

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

USPTO Granted Patents = 23 

% Patents Active = 87.0

 

Average Co-Inventor Count = 1.8

ph-index = 8

Forward Citations = 308(Granted Patents)


Company Filing History:

goldMedal22 out of 36,684 
 
Nec Corporation
 patents
silverMedal1 out of 3 
 
Nec Coproration
 patents
bronzeMedal1 out of 718 
 
Nec Laboratories America, Inc.
 patents
where one patent can have more than one assignee

Years Active: 1990-2017

Loading Chart...
Loading Chart...
Areas of Expertise:
Interference Cancellation
Coherent Optical Receiver
Optical Transmission System
Passive Optical Network
Spanning Tree Configuration
Ethernet Frame Transfer
Mobile Communication
Optical Module
Frequency Stabilization
Polarization Diversity
Heterodyne Receiver
Resonance-Type Receiver
23 patents (USPTO):Explore Patents
1. 9819415 - Interference cancellation device and interference cancellation method (2017-11-14),
2. 9419724 - Coherent optical receiver and optical receiving method (2016-08-16),
3. 9124372 - Optical transmission system and optical transmission method (2015-09-01),
4. 8989603 - Coherent optical receiver and coherent optical receiving method (2015-03-24),
5. 8098990 - System and method for providing wireless over a passive optical network (PON) (2012-01-17),
6. 7894374 - Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program (2011-02-22),
7. 7855981 - Network system, spanning tree configuration method, spanning tree configuration node, and spanning tree configuration program (2010-12-21),
8. 7783705 - Frame transfer method and node in Ethernet (2010-08-24),
9. 7646789 - Communication system including several communication terminals and server, its communication terminal, its server and data transfer control program (2010-01-12),
10. 7200155 - Communication system capable of efficiently transmitting data from terminals to server (2007-04-03),
11. 5847852 - Optical network (1998-12-08),
12. 5771111 - Optical network (1998-06-23),
13. 5751455 - Optical transmission system and optical network terminals used therein (1998-05-12),
14. 5570219 - Optical transmitter for subcarrier frequency multiplexed optical (1996-10-29),
15. 5504826 - Optical module for subcarrier multiplexed optical transmission system (1996-04-02),

Title: The Innovative World of Makoto Shibutani: Pioneering Inventor from Tokyo

Introduction: Makoto Shibutani, a distinguished inventor hailing from Tokyo, Japan, has left an indelible mark on the technological landscape with his remarkable contributions. With a total of 23 patents to his name, Shibutani's inventive spirit and groundbreaking work have solidified his place in the realm of innovation.

Latest Patents: Among his latest patents, two standout creations showcase Shibutani's expertise and ingenuity. The first is an "Interference Cancellation Device and Interference Cancellation Method," designed to mitigate interference signals in optical fiber transmission paths effectively. The second patent involves a "Coherent Optical Receiver and Optical Receiving Method," revolutionizing coherent detection in optical communication systems.

Career Highlights: Shibutani's career boasts an impressive tenure at renowned companies such as NEC Corporation and NEC Laboratories America, Inc. His tenure at these esteemed organizations has allowed him to spearhead cutting-edge research and development initiatives, leading to impactful technological advancements in the field.

Collaborations: Throughout his illustrious career, Shibutani has had the privilege of collaborating with esteemed colleagues such as Wataru Domon and Masaki Umayabashi. Together, they have synergized their expertise and creativity to drive innovation and push the boundaries of technological possibilities.

Conclusion: Makoto Shibutani stands as a beacon of innovation and creativity in the world of technology. His prolific contributions, transformative patents, and collaborations have not only enriched the industry but have also paved the way for a future where technology knows no bounds. His legacy as an inventive genius continues to inspire generations of innovators worldwide.

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…