AT

Akira Tohkairin

HI Hitachi: 13 patents #3,142 of 28,497Top 15%
AE Aida Engineering: 1 patents #83 of 163Top 55%
📍 Ibaraki, JP: #755 of 6,779 inventorsTop 15%
Overall (All Time): #391,381 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
4829206 Armature for an electric rotary machine and method of manufacturing the same Teruhisa Honshima, Yasuaki Watanabe, Akira Takahachi, Tadayochi Samata, Nobuhiko Ogasawara 1989-05-09
4644850 Fluid machine Hisanobu Kanamaru, Kazushi Sasaya, Tomiyasu Onuma 1987-02-24
4541315 Inside chuck device for machine tools Hisanobu Kanamaru, Takuzo Kurosawa 1985-09-17
4392296 Method of joining two metal members Hisanobu Kanamaru, Hideo Tatsumi, Naotatsu Asahi, Mitsuo Haginoya 1983-07-12
4377762 Rotary electric machine rotor and a method of manufacturing the same Hideo Tatsumi, Hisanobu Kanamaru, Moisei Okabe, Ryoji Kasama 1983-03-22
4376333 Method of joining members of metal by forced insertion Hisanobu Kanamaru, Moisei Okabe, Hideo Tatsumi 1983-03-15
4370793 Method of coupling two metallic members Hisanobu Kanamaru, Moisei Okabe, Hideo Tatsumi 1983-02-01
4339873 Method of making rotor of rotary machines Hisanobu Kanamaru, Moisei Okabe, Hideo Tatsumi, Ryoji Kasama 1982-07-20
4335496 Method of coupling two concentrically disposed members Hisanobu Kanamaru, Hideo Tatsumi, Moisei Okabe 1982-06-22
4325678 Hydraulic pressure producing system for a hydraulic press Hisanobu Kanamaru, Moisei Okabe, Hideo Tatsumi, Takuzo Kurosawa 1982-04-20
4290295 Method of making V-grooved pulley assembly Hisanobu Kanamaru, Hideo Tatsumi, Kosaku Sayo 1981-09-22
4253323 Method for manufacturing high precision slugs Kinshiro Murakami, Atsumu Hakoyama, Masakazu Yamazaki, Hisanobu Kanamaru, Yasushi Ouchi 1981-03-03
4249298 Method for connecting two members Hisanobu Kanamaru, Hideo Tatsumi, Moisei Okabe 1981-02-10