Growing community of inventors

Nagoya, Japan

Etsuko Nakajima

Average Co-Inventor Count = 6.00

ph-index = 2

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 = 8

Etsuko NakajimaHideo Hasegawa (12 patents)Etsuko NakajimaNaoki Uenoyama (12 patents)Etsuko NakajimaAkira Hoshino (12 patents)Etsuko NakajimaKeiko Nakano (12 patents)Etsuko NakajimaJunya Masui (12 patents)Etsuko NakajimaEtsuko Nakajima (12 patents)Hideo HasegawaHideo Hasegawa (93 patents)Naoki UenoyamaNaoki Uenoyama (40 patents)Akira HoshinoAkira Hoshino (36 patents)Keiko NakanoKeiko Nakano (31 patents)Junya MasuiJunya Masui (20 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (12 from 36,653 patents)


12 patents:

1. 12134367 - Locking and unlocking system for a vehicle based on a valid period of authentication

2. 11538300 - Authentication information issuing apparatus, delivery system and authentication information issuing method

3. 11276260 - Authentication information issuing apparatus, delivery system and authentication information issuing method

4. 11260825 - Locking and unlocking system

5. 11232529 - Delivery management system, server, delivery management method, delivery user terminal, client user terminal, and information processing method

6. 11077829 - Authentication information providing server, authentication information providing method, delivery user terminal, and locking and unlocking method

7. 10988109 - Sound output apparatus, sound output control method, vehicle, and locking and unlocking system

8. 10891811 - Authentication information issuing apparatus, delivery system and authentication information issuing method

9. 10766455 - Sound output apparatus, sound output control method, vehicle, and locking and unlocking system

10. 10723316 - Locking and unlocking system

11. 10661753 - Authentication information providing server, authentication information providing method, delivery user terminal, and locking and unlocking method

12. 10648866 - Server device and management system

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12/26/2025
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