Growing community of inventors

Tokyo, Japan

Makoto Yanaka

Average Co-Inventor Count = 2.00

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 = 22

Makoto YanakaHidetsugu Ikeda (2 patents)Makoto YanakaHideo Irie (1 patent)Makoto YanakaMakoto Yanaka (3 patents)Hidetsugu IkedaHidetsugu Ikeda (6 patents)Hideo IrieHideo Irie (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seikosha Co., Ltd. (3 from 696 patents)


3 patents:

1. 5452270 - Melody alarm timepiece

2. 5303211 - Wall clock

3. D335098 - Clock movement

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idiyas.com
as of
12/8/2025
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