logo

For the Inventor, By the Inventor

Tokyo, Japan

Yuji Umemoto

This inventor holds 22 USPTO granted patents, plus 2 CIPO patents. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1988-2004.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Umemoto. Retrieved from https://idiyas.com/inventor/yuji-umemoto

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

USPTO Granted Patents = 22

% Patents Active = 95.5


Average Co-Inventor Count = 1.9

ph-index = 13

Forward Citations = 439(Granted Patents)


Location History:

  • Hachioji, JP (1991)
  • Hachiouji, JP (1995 - 1997)
  • Tokyo, JP (1993 - 2000)
  • Hino, JP (1988 - 2004)

Company Filing History:

goldMedal22 out of 53,250 
 
Kabushiki Kaisha Toshiba
 patents

Years Active: 1988-2004

Loading Chart...
Loading Chart...
22 patents (USPTO):Explore Patents
1. 6819942 - Mobile communication terminal (2004-11-16),
2. 6418159 - Portable radio telephone equipment and control thereof (2002-07-09),
3. 6049722 - Radio communication apparatus for use in dual-mode radio communication (2000-04-11),
4. 5960335 - Digital radio communication apparatus with a RSSI information measuring (1999-09-28),
5. 5771464 - Radio communication apparatus for use in dual-mode radio communication (1998-06-23),
6. 5696819 - Speech communication apparatus (1997-12-09),
7. 5636323 - Speech communication apparatus having an echo canceler (1997-06-03),
8. 5450442 - Digital radio telephone apparatus having an equalizer selectively (1995-09-12),
9. 5430731 - Radio tele-communication system using TDMA scheme to reduce signal (1995-07-04),
10. 5416829 - Dual mode cellular radio communication apparatus having an echo (1995-05-16),
11. 5400399 - Speech communication apparatus equipped with echo canceller (1995-03-21),
12. 5396496 - Unused time slot detection and selection in a mobile radio communication (1995-03-07),
13. 5379338 - Radiotelephone with handset talking function and hand-free talking (1995-01-03),
14. 5278835 - Mobile radio communication system (1994-01-11),
15. 5263079 - Dual mode cellular radio communication apparatus having an echo (1993-11-16),

Title: Yuji Umemoto: Innovator in Mobile Communication Technology

Introduction

Yuji Umemoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of mobile communication, holding a total of 22 patents. His work focuses on enhancing communication devices, ensuring they meet the evolving needs of users in an increasingly digital world.

Latest Patents

Umemoto's latest patents address critical aspects of mobile communication technology. One notable invention is a mobile communication terminal designed to detect whether an external unit is connected to an earphone jack. This invention intelligently identifies if the connected unit is an earphone or an electronic flash unit. If it recognizes an electronic flash unit, it seamlessly connects the audio path within the terminal to internal microphone and speaker systems.

Another recent patent revolves around portable radio telephone equipment and its control system, aimed at improving call quality. The invention addresses the unstable operation of noise cancelation during significant call events, such as origination, reception, or transitioning through hand-overs. By activating the noise canceller prior to the voice encoding and decoding processes, this technology ensures optimal performance and sound clarity throughout the call.

Career Highlights

Umemoto is associated with Kabushiki Kaisha Toshiba, a company renowned for its innovation in technology. His role at Toshiba allows him to work at the forefront of mobile technology development, where he applies his inventive mind to tackle modern communication challenges.

Collaborations

Throughout his career, Yuji Umemoto has collaborated with notable coworkers, including Koichi Ito and Masayuki Tanaka. These collaborations have fostered a dynamic environment for innovation, allowing the sharing of diverse ideas and expertise in the pursuit of advancing mobile communication technology.

Conclusion

Yuji Umemoto stands out as a key figure in the landscape of mobile communication innovations. With a robust portfolio of patents and a commitment to improving user experience in communication technology, he continues to make a lasting impact in his field. His work exemplifies the spirit of innovation that drives the industry forward.

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…