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For the Inventor, By the Inventor

Kawasaki, Japan

Yasuhiro Arai

This inventor holds 14 USPTO granted patents, plus 1 CIPO patent. Top assignee: Fujitsu Corporation. Active years: 1987-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhiro Arai. Retrieved from https://idiyas.com/inventor/yasuhiro-arai-9jvk1j1l

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

Calculating rank
USPTO Granted Patents = 14

% Patents Active = 92.9

 

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 128(Granted Patents)


Company Filing History:

goldMedal14 out of 39,378 
 
Fujitsu Corporation
 patents

Years Active: 1987-2007

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14 patents (USPTO):Explore Patents
1. 7224672 - XDSL modem (2007-05-29),
2. 6778595 - ADSL modem (2004-08-17),
3. 6760368 - Fast retraining method, apparatus, and storage medium in an xDSL transceiver (2004-07-06),
4. 6336039 - IC card-type radio communication device (2002-01-01),
5. 6330276 - Transmission level setting circuit and modem unit using the same (2001-12-11),
6. 6298245 - IC card-type radio communication device (2001-10-02),
7. 6167121 - Modem apparatus (2000-12-26),
8. 5887026 - Transmission level setting circuit and modem unit using the same (1999-03-23),
9. 5761528 - Multi-functions I/O memory card which changes the control program in (1998-06-02),
10. 5655009 - Modem unit (1997-08-05),
11. 5623514 - IC card-type modem and method for communicating data by IC card-type (1997-04-22),
12. 5515400 - Method for arranging signal points in a quadrature amplitude (1996-05-07),
13. 4868850 - MODEM communication system having training means and method for training (1989-09-19),
14. 4694469 - Method and device for timing pull-in of receiving equipment (1987-09-15),

Title: Yasuhiro Arai: Innovator in Broadband Communication Technology

Introduction

Yasuhiro Arai is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of broadband communication technology, holding a total of 14 patents. His work has been instrumental in enhancing the performance and reliability of communication systems.

Latest Patents

Among his latest innovations are two notable patents: the XDSL modem and the ADSL modem. The XDSL modem patent describes a system that analyzes the reception of an analog signal transmitted from a local switch to a subscriber line. It evaluates the transmission characteristics of the subscriber line and sends this information to the network. This modem is capable of automatically collecting various characteristics of the subscriber line before the provision of broadband communication services begins. The ADSL modem patent addresses the challenge of connecting multiple ADSL modems to a single telephone line. It ensures stable high-speed data communication without signal interference or impedance mismatch, making it ideal for home and small office applications.

Career Highlights

Yasuhiro Arai is currently employed at Fujitsu Corporation, where he continues to innovate in the field of telecommunications. His work has not only advanced technology but has also contributed to the overall improvement of broadband services.

Collaborations

Throughout his career, Arai has collaborated with notable colleagues, including Yuzo Usui and Takashi Kaku. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Yasuhiro Arai's contributions to broadband communication technology have made a lasting impact on the industry. His innovative patents and collaborative efforts exemplify the spirit of invention and progress in telecommunications.

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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