Tokyo, Japan

Tomoyuki Yamada

This inventor holds 17 USPTO granted patents and 2 published patent applications and 5 EPO patents, primarily in Wireless Communication Technology. Top assignees: Nippon Telegraph and Telephone Corporation, Prime Planet Energy & Solutions, Inc., Genomedia Inc.. Active years: 1992-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoyuki Yamada. Retrieved from https://idiyas.com/inventor/tomoyuki-yamada-xftcz9q5

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

Calculating rank
USPTO Granted Patents = 17 

% Patents Active = 94.1

 

Average Co-Inventor Count = 3.5

ph-index = 3

Forward Citations = 81(Granted Patents)


Location History:

  • Kanagawa, JP (1992)
  • Yokohama, JP (1993)
  • Yokosuka, JP (2014 - 2016)
  • Tokyo, JP (1992 - 2024)
  • Musashino, JP (2024)

Company Filing History:


Years Active: 1992-2026

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Areas of Expertise:
Information Processing
Wireless LAN
Battery Manufacturing
Optical Device
Spatial Multiplexing
Superconductor Junction
Paging Signal Control
Infrared Meter
Random Access Communication
Mobile Communication
Interference Control
Database Server
17 patents (USPTO):Explore Patents

Title: Innovations of Tomoyuki Yamada

Introduction

Tomoyuki Yamada is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical devices and wireless communication systems. With a total of 13 patents to his name, Yamada's work reflects his innovative approach to technology.

Latest Patents

Yamada's latest patents include an optical device manufacturing method and manufacturing apparatus using local etching. This method is characterized by the use of a nozzle that performs local etching processing during the wafer process of manufacturing waveguide type optical devices. The invention allows for the formation of slanted end surfaces or cores with varying film thicknesses at arbitrary positions on the wafer, enabling high-efficiency optical connections. Another notable patent is for a wireless LAN system and interference control method. This system includes an interference control signal transmitter that collects wireless environment information and transmits control signals to manage interference, thereby enhancing communication between wireless LAN base stations and terminals.

Career Highlights

Throughout his career, Tomoyuki Yamada has worked with notable companies such as Nippon Telegraph and Telephone Corporation and NTT Electronics Corporation. His experience in these organizations has contributed to his expertise in developing advanced technologies in telecommunications and optical devices.

Collaborations

Yamada has collaborated with esteemed colleagues, including Yasushi Takatori and Kenichi Kawamura. These partnerships have fostered a creative environment that has led

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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