Growing community of inventors

Toyonaka, Japan

Katsumasa Shirai

Average Co-Inventor Count = 4.00

ph-index = 1

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 = 12

Katsumasa ShiraiShoji Yuyama (1 patent)Katsumasa ShiraiAkitomi Kohama (1 patent)Katsumasa ShiraiTatsuaki Kunimoto (1 patent)Katsumasa ShiraiKatsumasa Shirai (1 patent)Shoji YuyamaShoji Yuyama (144 patents)Akitomi KohamaAkitomi Kohama (15 patents)Tatsuaki KunimotoTatsuaki Kunimoto (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yuyama Mfg. Co., Ltd. (1 from 249 patents)


1 patent:

1. 7731473 - Medicine tray supply apparatus

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12/16/2025
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