Growing community of inventors

Yokohama, Japan

Makoto Ohtuki

Average Co-Inventor Count = 4.00

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 = 57

Makoto OhtukiIchiroh Koyanagi (2 patents)Makoto OhtukiFumitomo Ohsawa (2 patents)Makoto OhtukiTakayuki Satoh (2 patents)Makoto OhtukiMakoto Ohtuki (2 patents)Ichiroh KoyanagiIchiroh Koyanagi (9 patents)Fumitomo OhsawaFumitomo Ohsawa (5 patents)Takayuki SatohTakayuki Satoh (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Business Machines Corporation (2 from 164,219 patents)


2 patents:

1. 5491608 - Shockproof and portable disk storage apparatus having shock absorbers on

2. 5402308 - Portable disk storage apparatus using flexible cable for shock absorption

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1/3/2026
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