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For the Inventor, By the Inventor

Shizuoka, Japan

Youichi Arai

USPTO Granted Patents = 25

Average Co-Inventor Count = 2.0

ph-index = 12

Forward Citations = 568(Granted Patents)


Location History:

  • Susono, JP (1997 - 1999)
  • Shizuoka-ken, JP (1997 - 2001)
  • Shizuoka, JP (1995 - 2006)

Company Filing History:

goldMedal25 out of 8,208 
 
Yazaki Corporation
 patents

Years Active: 1995-2006

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25 patents (USPTO):Explore Patents
1. 7034504 - Battery status monitoring apparatus which monitors internal battery resistance, saturation polarization detecting method and dischargeable capacity detecting method (2006-04-25),
2. 6850038 - Method of estimating state of charge and open circuit voltage of battery, and method and device for computing degradation degree of battery (2005-02-01),
3. 6788068 - Method and device for measuring pure resistance of on-vehicle battery by periodically measuring a discharge current and terminal voltage while a rush current flows into a constant load (2004-09-07),
4. 6696818 - Method and unit for computing charging efficiency and charged electrical quantity of battery (2004-02-24),
5. 6677729 - Method and unit for computing voltage drop divided along factors for battery (2004-01-13),
6. 6661231 - Battery capacity calculating method and device therefor (2003-12-09),
7. 6661202 - Degradation degree computing method and unit for battery (2003-12-09),
8. 6624636 - Method and apparatus for estimating terminal voltage of battery, method and apparatus for computing open circuit voltage of battery, and method and apparatus for computing battery capacity (2003-09-23),
9. 6518735 - Method and apparatus for measuring pure resistance of in-vehicle battery (2003-02-11),
10. 6310462 - Residual capacity measurement system for battery (2001-10-30),
11. 6275008 - Battery capacity detection system with temperature correction (2001-08-14),
12. 6137284 - Method and apparatus for detecting supply voltage (2000-10-24),
13. 5872453 - Battery remaining capacity measuring apparatus (1999-02-16),
14. 5848380 - Method and system for estimation of cell discharge stop voltage (1998-12-08),
15. 5798646 - Apparatus for measuring remaining capacity of a battery (1998-08-25),

Title: Innovations by Youichi Arai in Battery Technology

Introduction

Youichi Arai, based in Shizuoka, Japan, is a prolific inventor with a remarkable portfolio of 25 patents. His contributions primarily focus on enhancing battery technology, specifically in monitoring and estimating battery performance, which is crucial in today’s energy-dependent world.

Latest Patents

Arai's latest innovations include a battery status monitoring apparatus designed to effectively monitor internal battery resistance. This apparatus utilizes a microcomputer to assess the voltage drop due to internal resistance when saturation polarization occurs during discharge. Additionally, he developed a method for detecting saturation polarization and estimating dischargeable capacity by calculating a dischargeable capacity based on the difference between the saturated voltage drop and the battery's chargeable capacity.

Another significant innovation is the method of estimating the state of charge and open circuit voltage of a battery. Arai’s invention also encompasses a method and device for computing the degradation degree of a battery. This approach enables accurate estimation of a battery's state of charge by calculating the ratio of its total electrical quantity chargeable or dischargeable at any point to its initial capacity when not degraded.

Career Highlights

Arai works at Yazaki Corporation, where he applies his talent in battery technology to develop innovative solutions. Over the years, he has contributed significantly to the advancement of battery monitoring systems, creating technology that enhances the efficiency and reliability of battery management in various applications.

Collaborations

In his quest for innovation, Arai collaborates with esteemed colleagues such as Tsutomu Saigo and Kenichi Shimoyama. Their combined expertise fosters an environment of creativity and technological advancement, leading to groundbreaking developments in battery technology.

Conclusion

Youichi Arai's dedication to innovation in battery technology has resulted in significant advancements that aid in the accurate monitoring and estimation of battery performance. His patents not only reflect his expertise as an inventor but also demonstrate the vital role of research and collaboration in advancing technological solutions for modern challenges.

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