Growing community of inventors

Saitama, Japan

Yujin Tsukada

Average Co-Inventor Count = 2.57

ph-index = 5

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 = 631

Yujin TsukadaTakeshi Hoshino (5 patents)Yujin TsukadaTakeshi Minemoto (3 patents)Yujin TsukadaTakashi Yoshimaru (2 patents)Yujin TsukadaTakashi Matsubara (1 patent)Yujin TsukadaMayumi Nakade (1 patent)Yujin TsukadaAtsushi Maki (1 patent)Yujin TsukadaMasaki Takano (1 patent)Yujin TsukadaTatsuya Tokunaga (1 patent)Yujin TsukadaTomochika Ozaki (1 patent)Yujin TsukadaKazushige Hiroi (1 patent)Yujin TsukadaManabu Yanagimoto (1 patent)Yujin TsukadaKazumi Matsumoto (1 patent)Yujin TsukadaIsshu Nakajima (1 patent)Yujin TsukadaNobuo Nukaga (1 patent)Yujin TsukadaYukari Yamamoto (1 patent)Yujin TsukadaChizuko Sasanabe (1 patent)Yujin TsukadaAkiko Obata (nee Nakajima) (1 patent)Yujin TsukadaYujin Tsukada (10 patents)Takeshi HoshinoTakeshi Hoshino (36 patents)Takeshi MinemotoTakeshi Minemoto (12 patents)Takashi YoshimaruTakashi Yoshimaru (22 patents)Takashi MatsubaraTakashi Matsubara (147 patents)Mayumi NakadeMayumi Nakade (55 patents)Atsushi MakiAtsushi Maki (54 patents)Masaki TakanoMasaki Takano (27 patents)Tatsuya TokunagaTatsuya Tokunaga (24 patents)Tomochika OzakiTomochika Ozaki (19 patents)Kazushige HiroiKazushige Hiroi (12 patents)Manabu YanagimotoManabu Yanagimoto (9 patents)Kazumi MatsumotoKazumi Matsumoto (8 patents)Isshu NakajimaIsshu Nakajima (8 patents)Nobuo NukagaNobuo Nukaga (6 patents)Yukari YamamotoYukari Yamamoto (6 patents)Chizuko SasanabeChizuko Sasanabe (2 patents)Akiko Obata (nee Nakajima)Akiko Obata (nee Nakajima) (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (7 from 42,485 patents)

2. Hitachi Consumer Electronics Co., Ltd. (2 from 365 patents)

3. Other (1 from 832,680 patents)


10 patents:

1. 11798108 - Transportation service planning system and transportation service planning method

2. 10522122 - Music box apparatus

3. 8667426 - Input apparatus

4. 8416309 - Camera-fitted information retrieval device

5. 8334933 - Television operation method

6. 8003907 - Operation device and elevator apparatus with operation device

7. 7312791 - Display unit with touch panel

8. 7245293 - Display unit with touch panel and information processing method

9. 7002556 - Touch responsive display unit and method

10. 6940494 - Display unit with touch panel and information processing method

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as of
12/5/2025
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