Growing community of inventors

Shimizu, Japan

Tokumitsu Iwama

Average Co-Inventor Count = 1.33

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 = 584

Tokumitsu IwamaMichiaki Hattori (1 patent)Tokumitsu IwamaTokumitsu Iwama (2 patents)Michiaki HattoriMichiaki Hattori (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Murakami Corporation (1 from 190 patents)

2. Murakami Kaimeido Co., Ltd. (1 from 36 patents)


2 patents:

1. 5640274 - Electrocromic rearview mirror for an automobile improved in a water

2. 5634709 - Inner mirror of a vehicle having a display device

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as of
12/17/2025
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