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For the Inventor, By the Inventor

Fujisawa, Japan

Takashi Takeuchi

This inventor holds 31 USPTO granted patents, primarily in Optical Data Storage. Top assignees: Hitachi, Ltd., Hitachi Maxell, Limited, Hitachi Information Network, Ltd.. Active years: 1982-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Takeuchi. Retrieved from https://idiyas.com/inventor/takashi-takeuchi-xftgbuv0

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 3.7

ph-index = 17

Forward Citations = 948(Granted Patents)


Company Filing History:

goldMedal28 out of 42,740 
 
Hitachi, Ltd.
 patents
silverMedal3 out of 1,112 
 
Hitachi Maxell, Limited
 patents
bronzeMedal1 out of 5 
 
Hitachi Information Network, Ltd.
 patents
4. 1 out of 336 
 
Hitachi Ulsi Systems Co., Ltd.
 patents
5. 1 out of 67 
 
Hitachi Video Engineering, Incorporated
 patents
6. 1 out of 1 
 
Nii Data Communications Systems Corporation
 patent
7. 1 out of 2,887 
 
Victor Company of Japan, Limited
 patents
8. 1 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1982-2003

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Areas of Expertise:
Battery Module
Current Flow Detection
Optical Disc
Playback System
Information Recording
Digital Audio Data
CD-ROM Retrieval
Interactive Program
Electromagnetic Coupling
Tracking Servo System
Error Correction
Dielectric Heating
31 patents (USPTO):Explore Patents
1. 6534213 - Battery module for compact electric appliance for coping with deformation of the battery (2003-03-18),
2. 6285164 - Means for detecting the integrated value of current flow, a means for detecting the value of current flow and a battery pack employing those means (2001-09-04),
3. 6157170 - Means for detecting the integrated value of current flow, a means for (2000-12-05),
4. 5991798 - Package medium system having URL hyper-linked to data in removable (1999-11-23),
5. 5982719 - Disc auto changer for recording or reproducing information on a desired (1999-11-09),
6. 5909551 - Interactive recording/reproducing medium and reproducing system (1999-06-01),
7. 5875156 - Playback system for an optical disc representing a character or a (1999-02-23),
8. 5808987 - Information reproducing system for reproducing interleaved image data (1998-09-15),
9. 5751671 - Information recording media and optical disk, disk having specific data (1998-05-12),
10. 5737306 - Playback system for an optical disc presenting a character or a graphic (1998-04-07),
11. 5726702 - Television signal receiving apparatus incorporating an information (1998-03-10),
12. 5699360 - Method of and system for distributing digital audio image data (1997-12-16),
13. 5699106 - Interactive program selecting system (1997-12-16),
14. 5608717 - Information recording media and optical disc presenting a character or a (1997-03-04),
15. 5499221 - CD-ROM retrieval apparatus (1996-03-12),

Title: Takashi Takeuchi: A Pioneer in Battery Technology

Introduction

Takashi Takeuchi, a prolific inventor based in Fujisawa, Japan, has made significant contributions to the field of battery technology. With an impressive portfolio of 31 patents, he has been at the forefront of innovations that enhance the functionality and efficiency of compact electric appliances.

Latest Patents

Among his latest inventions is a battery module designed specifically for compact electric appliances. This innovative battery module is adaptable to be replaceably mounted on mobile phones, effectively forming part of the outer peripheral surface of the device. The design includes a gap within the inner surface of the container to accommodate any deformation of the battery, thereby ensuring that the device remains functional even under stress. Another groundbreaking patent involves an apparatus that detects the integrated value of current flow using an integrator and a current sensor. This technology not only enhances the performance of battery packs but also ensures accurate monitoring of current flow through a sophisticated resetting mechanism and counting system.

Career Highlights

Takashi Takeuchi has cultivated a rich career in some of Japan's leading technology companies. He has worked at Hitachi, Ltd. and Hitachi Maxell, Limited, where his expertise in battery technology has driven various research and development projects. His work has been integral in advancing technologies that support mobile devices and other compact electronics.

Collaborations

Throughout his career, Takashi has collaborated with esteemed professionals in the field, including Toshiyuki Oda and Tamotsu Ito. These partnerships have fostered a productive environment for innovation, enabling them to tackle complex engineering challenges and deliver cutting-edge solutions in battery technology.

Conclusion

Takashi Takeuchi is a distinguished inventor whose contributions to battery technology continue to shape the landscape of compact electric appliances. With his ongoing commitment to innovation and excellence, he stands as a pivotal figure in advancing the industry, leaving a lasting impact on the future of mobile technology.

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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