Hitachi Building Systems Engineering and Service Co., Ltd.

Hiroshi Yamazaki (1 out of 105 patents)

Hideaki Takahashi (1 out of 366 patents)

Hajime Okamoto (1 out of 8 patents)

4.  Seikichi Masuda (1 out of 6 patents)

5.  Hiromi Inaba (1 out of 45 patents)

6.  Kenji Kawano (1 out of 63 patents)

7.  Yoshio Sakai (1 out of 58 patents)

8.  Kiyoshi Nakamura (1 out of 43 patents)

9.  Sadao Hokari (1 out of 16 patents)

10.  Masahiro Konya (1 out of 1 patent)

11.  Akihiro Nokita (1 out of 1 patent)

12.  Takei Ando (1 out of 1 patent)

13.  Toshiaki Kurosawa (1 out of 15 patents)

14.  Shinichiro Kawano (1 out of 1 patent)

15.  Hisanori Fukai (1 out of 1 patent)