Company Filing History:

8 out of 35,689

Nec Corporation

patents

5 out of 1,038

Nippon Electric Co., Ltd.

patents

3 out of 5,290

Nippon Telegraph and Telephone Corporation

patents

where one patent can have more than one assignee

Years Active: 1982-1998

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5832366 - Radio selective call receiver (1998-11-03),

2. 5485146 - Paging receiver (1996-01-16),

3. 5193220 - Device for mounting an electronic part (1993-03-09),

4. 5079559 - Dual plate antenna (1992-01-07),

5. 4956641 - Radio paging device having circuitry of rewriting a stored message with (1990-09-11),

6. 4955084 - Paging receiver with metallic display frame structure increasing antenna (1990-09-04),

7. 4796024 - Selective calling receiver with automatic memory storage and turn-on (1989-01-03),

8. 4768031 - Radio paging receiver having a message protection capability (1988-08-30),

9. 4734694 - Pager (1988-03-29),

10. 4631640 - Portable radio device for protecting a radio circuit from static (1986-12-23),

11. 4599615 - Pager receiver comprising a memory storing a sequence of information (1986-07-08),

12. 4481675 - Pulse detecting circuit of receiver for use in digital radio (1984-11-06),

13. 4380832 - Portable radio communication device having signal processing circuit (1983-04-19),

14. 4340973 - Selective calling receiver including a voltage converter with low power (1982-07-20),

Title: The Innovative Contributions of Shinjiro Umetsu

Introduction

Shinjiro Umetsu is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of communication technology. With a total of 14 patents to his name, Umetsu has developed innovative solutions that enhance the functionality and efficiency of communication devices.

Latest Patents

Among his latest patents is the "Radio Selective Call Receiver," which features a controller that stops the power supply to receiver circuits after the end of a call informing operation. This invention ensures that the call informing unit can always notify users when their own call number is received. Additionally, the message signal decoding process is designed to be consistently effective. The call informing executing unit activates a call informing operation in response to a power supply start instruction, particularly when the memory stores a decoded message signal that has not yet been displayed. This allows users to be informed of any decoded message signals that remain undisplayed.

Another notable patent is the "Paging Receiver," which is capable of writing a paging code in an ID ROM based on a received signal. In cases where no data is present in the ID ROM, an ID ROM checking section generates a no-data signal. Furthermore, a mode set code detecting section produces a detection signal upon receiving a predetermined mode set code. The user can control the switch of the paging receiver, allowing data to be written to the ID under specific conditions, ensuring efficient communication.

Career Highlights

Shinjiro Umetsu has worked with notable companies such as NEC Corporation and Nippon Electric Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced communication technologies.

Collaborations

Throughout his career, Umetsu has collaborated with talented individuals, including Masahiro Matai and Seiji Nishikawa. These collaborations have fostered innovation and creativity in his projects.

Conclusion

Shinjiro Umetsu's contributions to communication technology through his patents demonstrate his commitment to innovation and improvement in the field. His work continues to influence the development of communication devices, making a lasting impact on the industry.

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