Keiichi Hayashi

This inventor holds 17 USPTO granted patents and 2 EPO patents. Top assignees: Nec Corporation, Komatsu Corporation, Power Systems Co., Ltd.. Active years: 1999-2026.

USPTO Granted Patents = 17

% Patents Active = 64.7

EPO Patents = 2 (Patent Applications = 4)

Average Co-Inventor Count = 1.3

ph-index = 5

Forward Citations = 147(Granted Patents)

Location History:

Kanagawa, JP (2003 - 2007)
Tokyo, JP (1999 - 2024)

Company Filing History:

Power Systems Co., Ltd.

patents

Years Active: 1999-2026

Loading Chart...

17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12559168 - Work machine and method for controlling work machine (2026-02-24),

2. 12529206 - Work machine and method for controlling work machine (2026-01-20),

3. 12024856 - Work machine (2024-07-02),

4. 11492781 - Work vehicle (2022-11-08),

5. 7783324 - Mobile communication system and devices used therefor (2010-08-24),

6. 7228126 - Portable communication terminal and method of transmission of electronic mail (2007-06-05),

7. 7214249 - Method for conducting electric activation of electric double layer capacitors (2007-05-08),

8. 7151924 - Communication system, hold control method therefor, telephone set, control method therefor and recording medium (2006-12-19),

9. 7017115 - Portable information terminal equipment and display method therefor (2006-03-21),

10. 6963761 - System and method for sounding a music accompanied by light or vibration (2005-11-08),

11. 6792453 - Information terminal unit, character input control method to be used in the same, and storage medium recording control program therefor (2004-09-14),

12. 6717531 - Keyboard device and a method of controlling a power supply incorporated in the keyboard device (2004-04-06),

13. 6650913 - Mobile telephone unit and method used in this unit for accessing internet site (2003-11-18),

14. 6321094 - Access method through radio mobile communication system (2001-11-20),

15. 6282612 - Removable memory device for portable terminal device (2001-08-28),

Title: Keiichi Hayashi: Innovator in Work Machine Technology

Introduction

Keiichi Hayashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of work machine technology, holding a total of 17 patents. His innovative designs focus on enhancing the stability and functionality of work vehicles.

Latest Patents

Among his latest patents, Keiichi Hayashi has developed a work machine that prevents tipping over. This work machine features a vehicular body and a rear axle capable of undergoing a roll motion. A controller is integrated to assess the stability of the center of gravity and manage the roll motion of the rear axle accordingly. Another notable invention is a work vehicle that includes a steering wheel, steering cylinder, and various hydraulic components. The steering valve in this vehicle supplies hydraulic fluid to the steering cylinder based on the driver's input, ensuring efficient operation.

Career Highlights

Throughout his career, Keiichi Hayashi has worked with notable companies such as NEC Corporation and Komatsu Corporation. His experience in these organizations has allowed him to refine his skills and contribute to advancements in work machine technology.

Collaborations

Keiichi has collaborated with talented individuals in the industry, including Noriyasu Sakajiri and Hiroto Nagai. These partnerships have fostered innovation and the development of cutting-edge technologies.

Conclusion

Keiichi Hayashi's contributions to work machine technology are noteworthy, with a focus on stability and efficiency. His patents reflect a commitment to innovation that continues to impact the industry positively.