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% Expired Patents = 28.6

Forward Citations = 53

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8 inventors (with patents filed for the assignee):

Yasuaki Yamagishi (6 out of 238 patents)

Fumihiko Nishio (6 out of 19 patents)

Yoshihisa Gonno (6 out of 19 patents)

4. Kazuo Haraoka (6 out of 12 patents)

5. Kazuhiko Takabayashi (5 out of 24 patents)

6. Takayuki Kunieda (1 out of 15 patents)

7. Yuki Wakita (1 out of 7 patents)

8. Masajiro Iwasaki (1 out of 13 patents)

7 patents: Sort by Forward Citations

1. 7657630 - Contents providing device, contents providing method, receiving device, receiving method, communication system, and communication method (2010-02-02),

2. 7627881 - Transmitting apparatus and receiving apparatus (2009-12-01),

3. 7363307 - Apparatus and method for communicating hierarchical structures of directories (2008-04-22),

4. 7328402 - Change detection in a hierarchical directory using messages having a filtering mask (2008-02-05),

5. 7277621 - Recording medium with video index information recorded therein video information management method which uses the video index information, recording medium with audio index information recorded therein, audio information management method which uses the audio index information, video retrieval method which uses video index information, audio retrieval method which uses the audio index information and a video retrieval system (2007-10-02),

6. 7093000 - Transmitting apparatus, transmitting method, receiving apparatus, receiving method, transmitting and receiving system, and transmitting and receiving method (2006-08-15),

7. 7051064 - Apparatus and method for maintaining hierarchical directory structure and transmitting changes in same (2006-05-23),

Information Broadcasting Laboratories, Inc. (IBL) is a leading provider of innovative broadcasting solutions. With a focus on cutting-edge technology and seamless integration, IBL helps clients enhance their broadcast capabilities and reach a wider audience. Our team of experts is dedicated to delivering high-quality services that exceed expectations. Visit our website to learn more about our solutions and experience the difference with IBL.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

7 Patents

#2,278 in Tokyo

#5,441 in Japan

Tokyo, Japan

Information Broadcasting Laboratories, Inc.