Growing community of inventors

Tokyo, Japan

Kiyoji Kawai

Average Co-Inventor Count = 1.54

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 202

Kiyoji KawaiShiro Hikita (6 patents)Kiyoji KawaiNobukazu Takeuchi (20 patents)Kiyoji KawaiMasahiko Konishi (7 patents)Kiyoji KawaiMasafumi Iwata (4 patents)Kiyoji KawaiAkihisa Miyajima (2 patents)Kiyoji KawaiMasaaki Amano (1 patent)Kiyoji KawaiYuji Fujihata (1 patent)Kiyoji KawaiToshiyuki Kodera (1 patent)Kiyoji KawaiHiroyo Takahashi (1 patent)Kiyoji KawaiTadashi Omori (1 patent)Kiyoji KawaiMasaya Kunitachi (0 patent)Kiyoji KawaiKiyoji Kawai (22 patents)Shiro HikitaShiro Hikita (37 patents)Nobukazu TakeuchiNobukazu Takeuchi (20 patents)Masahiko KonishiMasahiko Konishi (11 patents)Masafumi IwataMasafumi Iwata (18 patents)Akihisa MiyajimaAkihisa Miyajima (2 patents)Masaaki AmanoMasaaki Amano (19 patents)Yuji FujihataYuji Fujihata (1 patent)Toshiyuki KoderaToshiyuki Kodera (1 patent)Hiroyo TakahashiHiroyo Takahashi (1 patent)Tadashi OmoriTadashi Omori (1 patent)Masaya KunitachiMasaya Kunitachi (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Electric Corporation (13 from 15,863 patents)

2. Mitsubishi Denki Kabushiki Kaisha (9 from 21,351 patents)


22 patents:

1. 8839914 - Elevator system including fire evacuation priority

2. 8493230 - Elevator evacuation supporting system

3. 8281901 - Elevator door emergency opening control system

4. 8245819 - Refuge supporting device of elevator

5. 8113320 - Fire evacuation support system and fire door control device

6. 7954603 - Evacuation control apparatus for elevators including a rescue floor setting portion

7. 7938232 - Evacuation control apparatus for an elevator

8. 7926621 - Evacuation assistance device for elevator

9. 7849973 - Refuge support system of double deck elevator

10. 7743889 - Elevator control system which operates an elevator in an event of a fire

11. 7677363 - Evacuation assistance device for elevator

12. 7669695 - Fire evacuation operation system for group controlled elevators

13. 7637354 - Evacuation system and method for elevator control using number of people remaining

14. 7621378 - System for controlled operation of elevator in case of fire and method of controlled operation of elevator in case of fire

15. 7604096 - Operation device for elevator

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as of
12/10/2025
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