Company Filing History:

4 out of 42,488

Hitachi, Ltd.

4. 2 out of 832,718

Other

patents

where one patent can have more than one assignee

Years Active: 2003-2018

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10154363 - Electronic apparatus and sound output control method (2018-12-11),

2. 9031144 - Peak factor reduction device and wireless transmitter (2015-05-12),

3. 8124926 - Key device and electronic device comprising the same (2012-02-28),

4. 7068637 - Base station and mobile communication system (2006-06-27),

5. 6895038 - Communication system (2005-05-17),

6. 6879845 - Wireless communication method and system using beam direction-variable antenna (2005-04-12),

7. 6834197 - Base station apparatus, mobile communication system, and method of controlling transmission power (2004-12-21),

8. 6615030 - Mobile communications system and radio base station apparatus (2003-09-02),

Title: Yuuji Ishida: Innovator in Electronic Apparatus and Sound Control

Introduction

Yuuji Ishida is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of electronic apparatus and sound output control, holding a total of eight patents. His innovative work has paved the way for advancements in technology that enhance user experience in electronic devices.

Latest Patents

Ishida's latest patents include an electronic apparatus and sound output control method. This invention features a plurality of sound output units and incorporates a detection unit that identifies objects surrounding the electronic apparatus. The controller within the device manages the signals sent to the sound output units based on the detection results. Another notable patent is a peak factor reduction device and wireless transmitter. This device is designed to meet the required signal-to-noise ratio (SNR) values for various systems and channels. It generates a cancellation signal that is multiplexed onto the transmission signal, adjusting the amplitude of the cancellation signal according to the required SNR and power level of the transmission signal.

Career Highlights

Throughout his career, Yuuji Ishida has worked with notable companies, including Hitachi, Ltd. His experience in these organizations has contributed to his expertise in developing innovative electronic solutions.

Collaborations

Ishida has collaborated with esteemed colleagues such as Joichi Saito and Naoki Tsubaki. Their joint efforts have further advanced the field of electronic apparatus and sound control.

Conclusion

Yuuji Ishida's contributions to technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of electronic devices, enhancing their functionality and user experience.

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