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For the Inventor, By the Inventor

Yokosuka, Japan

Yasushi Yamao

This inventor holds 44 USPTO granted patents, plus 9 CIPO patents and 4 EPO patents, primarily in Mobile Communication Systems. Top assignees: Ntt Docomo, Inc., Ntt Mobile Communications Network, Inc., Nippon Telegraph and Telephone Corporation. Active years: 1990-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasushi Yamao. Retrieved from https://idiyas.com/inventor/yasushi-yamao

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

USPTO Granted Patents = 44

% Patents Active = 65.9



Average Co-Inventor Count = 3.1

ph-index = 16

Forward Citations = 973(Granted Patents)


Location History:

  • Kanagawa-ken, JP (2002 - 2003)
  • Kanagawa, JP (1993 - 2010)
  • Yokosuka, JP (1990 - 2012)

Company Filing History:

goldMedal30 out of 4,938 
 
Ntt Docomo, Inc.
 patents
silverMedal8 out of 247 
 
Ntt Mobile Communications Network, Inc.
 patents
bronzeMedal5 out of 5,300 
 
Nippon Telegraph and Telephone Corporation
 patents
4. 1 out of 1 
 
Ntt Communications Network, Inc.
 patent

Years Active: 1990-2012

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Areas of Expertise:
Mobile Communication
Radio Resource Allocation
Packet Transmission
Power Amplifier
Digital Predistorter
Relay Station
Base Station
Multi-Band Predistorter
Wireless Network
Communication Method
Signal Transmission
Radio Paging
44 patents (USPTO):Explore Patents
1. 8098114 - Matching circuit (2012-01-17),
2. 7907890 - Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program (2011-03-15),
3. 7881660 - Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program (2011-02-01),
4. 7702280 - Mobile communication system, transmission station, reception station, relay station, communication path deciding method, and communication path deciding program (2010-04-20),
5. 7620021 - Method, base station and mobile station for timeslot selection and timeslot assignment (2009-11-17),
6. 7519029 - Radio communication system, base station, relay station, mobile station, and packet transmission control method (2009-04-14),
7. 7443816 - Packet transmission method, base station and mobile station (2008-10-28),
8. 7418056 - Digital predistorter using power series model (2008-08-26),
9. 7373103 - Relay terminal, base station, charging server, communication system, charging method, program computer data signal, and storage medium (2008-05-13),
10. 7292124 - Variable resonator and variable phase shifter (2007-11-06),
11. 7272361 - Method and device for transmitting burst signal in mobile communication system, information distribution method, and information distribution controller (2007-09-18),
12. 7245195 - Coplanar waveguide filter and method of forming same (2007-07-17),
13. 7224954 - Method and device for communicating via an ad-hoc wireless network (2007-05-29),
14. 7183874 - Casing contained filter (2007-02-27),
15. 7170344 - Multi-band predistorter using power series representation (2007-01-30),

Title: Inventor Profile: Yasushi Yamao

Introduction

Yasushi Yamao, based in Yokosuka, Japan, is a prominent inventor known for his significant contributions to mobile communication technologies. With an impressive portfolio of 44 patents, Yamao has developed innovative systems that enhance communication efficiency and quality in modern technology.

Latest Patents

Among his latest accomplishments is a patent for a matching circuit that features a main matching block inserted in a signal path alongside a series matching block. This design allows for effective impedance matching between input and output at different frequencies, utilizing a switch to optimize performance. Another notable patent relates to a mobile communication system that enables rapid communication via multihop connections. This system incorporates mobile stations, relay stations, and base stations to facilitate packet transmission, ensuring that communication paths are determined based on signal interference levels and line quality requirements.

Career Highlights

Yasushi Yamao's career includes key positions at NTT DOCOMO, Inc. and NTT Mobile Communications Network, Inc., where he has contributed to breakthroughs in mobile communication technologies. His work has directly impacted the improvement of communication systems, enhancing user experience and connectivity.

Collaborations

In his professional journey, Yamao has collaborated with talented individuals such as Narumi Umeda and Shogo Ito. These partnerships have fostered an environment of innovation, leading to the development of successful communication technologies.

Conclusion

Yasushi Yamao stands out as a prolific inventor in the field of telecommunications. His extensive patent portfolio reflects a commitment to advancing the efficiency and quality of mobile communication systems. Through collaborative efforts and innovative solutions, Yamao continues to make significant contributions to this dynamic industry.

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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