Growing community of inventors

Hitachinaka, Japan

Eisaku Oka

Average Co-Inventor Count = 4.60

ph-index = 3

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 = 41

Eisaku OkaHiromi Ozawa (4 patents)Eisaku OkaNobuhiro Takano (3 patents)Eisaku OkaYoshikazu Kawano (2 patents)Eisaku OkaTomoyuki Kawahara (2 patents)Eisaku OkaKenrou Ishimaru (2 patents)Eisaku OkaHiroyuki Saitou (2 patents)Eisaku OkaHideaki Terashima (1 patent)Eisaku OkaToshihiko Hayashizaki (1 patent)Eisaku OkaEisaku Oka (4 patents)Hiromi OzawaHiromi Ozawa (12 patents)Nobuhiro TakanoNobuhiro Takano (74 patents)Yoshikazu KawanoYoshikazu Kawano (19 patents)Tomoyuki KawaharaTomoyuki Kawahara (16 patents)Kenrou IshimaruKenrou Ishimaru (10 patents)Hiroyuki SaitouHiroyuki Saitou (5 patents)Hideaki TerashimaHideaki Terashima (28 patents)Toshihiko HayashizakiToshihiko Hayashizaki (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Koki Co., Ltd. (4 from 1,267 patents)


4 patents:

1. 8230768 - Miter saw

2. 7778796 - Miter saw for displaying angle of cutter blade cutting workpiece

3. 7039548 - Miter saw for displaying angle of cutter blade cutting workpiece

4. 6543323 - Vice device in compound miter saw

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/23/2026
Loading…