Growing community of inventors

Kudamatsu, Japan

Keiji Ohmura

Average Co-Inventor Count = 5.27

ph-index = 7

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 = 92

Keiji OhmuraSumio Okuno (6 patents)Keiji OhmuraMichifumi Takeichi (4 patents)Keiji OhmuraMorishige Hattori (3 patents)Keiji OhmuraMasato Okazaki (3 patents)Keiji OhmuraHitoshi Tsuruda (3 patents)Keiji OhmuraSeiichi Okamoto (3 patents)Keiji OhmuraYasuo Ishimaru (2 patents)Keiji OhmuraKentaro Masai (2 patents)Keiji OhmuraTakashi Tao (2 patents)Keiji OhmuraHideshi Ohba (2 patents)Keiji OhmuraHiroyuki Yamada (1 patent)Keiji OhmuraSueo Kawai (1 patent)Keiji OhmuraHideshi Ooba (1 patent)Keiji OhmuraYoshimasa Murakami (1 patent)Keiji OhmuraSenzoo Hida (1 patent)Keiji OhmuraMichifumi Takeich (1 patent)Keiji OhmuraMsato Okazaki (1 patent)Keiji OhmuraKenji Kimura (1 patent)Keiji OhmuraMasatake Nakamura (1 patent)Keiji OhmuraKentarou Masai (1 patent)Keiji OhmuraKeiji Ohmura (9 patents)Sumio OkunoSumio Okuno (23 patents)Michifumi TakeichiMichifumi Takeichi (10 patents)Morishige HattoriMorishige Hattori (17 patents)Masato OkazakiMasato Okazaki (9 patents)Hitoshi TsurudaHitoshi Tsuruda (5 patents)Seiichi OkamotoSeiichi Okamoto (3 patents)Yasuo IshimaruYasuo Ishimaru (44 patents)Kentaro MasaiKentaro Masai (6 patents)Takashi TaoTakashi Tao (2 patents)Hideshi OhbaHideshi Ohba (2 patents)Hiroyuki YamadaHiroyuki Yamada (142 patents)Sueo KawaiSueo Kawai (39 patents)Hideshi OobaHideshi Ooba (2 patents)Yoshimasa MurakamiYoshimasa Murakami (2 patents)Senzoo HidaSenzoo Hida (1 patent)Michifumi TakeichMichifumi Takeich (1 patent)Msato OkazakiMsato Okazaki (1 patent)Kenji KimuraKenji Kimura (1 patent)Masatake NakamuraMasatake Nakamura (1 patent)Kentarou MasaiKentarou Masai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (9 from 42,517 patents)


9 patents:

1. 5601034 - Rolling stock and method for equipping the interior the same

2. 5595123 - Rolling stock and method for equipping the interior the same

3. 5287814 - Car body of railway rolling stock and method for fabricating car body

4. 5188039 - Method of fixing inside panel of car and structure for fixing the same

5. 5113769 - Car body for railway rolling stock and method for fabricating car body

6. 5109777 - Car body for railway rolling stock with joggled adjacent side sheet end

7. 4995321 - Car body for railway rolling stock

8. 4993329 - Car body for railway rolling stock and method of fabricating the car body

9. 4645258 - Underframe construction for railway vehicle

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as of
1/8/2026
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