Inventor · disambiguated record
Akira Tohkairin
Also filed as: TOHKAIRIN AKIRA
13 granted patents·329 citations·filing 1979–1987
93Inventor score
Top patents by PatentIndex Score
13 records- 0198US4376333AMethod of joining members of metal by forced insertionHITACHI LTD·Filed 1979·Granted Mar 15, 1983·89 cites·5 claims
- 0289US4377762ARotary electric machine rotor and a method of manufacturing the sameHITACHI LTD·Filed 1981·Granted Mar 22, 1983·54 cites·7 claims
- 0383US4339873AMethod of making rotor of rotary machinesHITACHI LTD·Filed 1980·Granted Jul 20, 1982·39 cites·7 claims
- 0477US4249298AMethod for connecting two membersHITACHI LTD·Filed 1979·Granted Feb 10, 1981·25 cites·15 claims
- 0573US4829206AArmature for an electric rotary machine and method of manufacturing the sameHITACHI LTD·Filed 1987·Granted May 9, 1989·41 cites·12 claims
- 0662US4335496AMethod of coupling two concentrically disposed membersHITACHI LTD·Filed 1979·Granted Jun 22, 1982·13 cites·15 claims
- 0762US4325678AHydraulic pressure producing system for a hydraulic pressHITACHI LTD·Filed 1979·Granted Apr 20, 1982·15 cites·4 claims
- 0851US4290295AMethod of making V-grooved pulley assemblyHITACHI LTD·Filed 1979·Granted Sep 22, 1981·9 cites·7 claims
- 0948US4253323AMethod for manufacturing high precision slugsAIDA ENG LTD·Filed 1979·Granted Mar 3, 1981·11 cites·5 claims
- 1047US4644850AFluid machineHITACHI LTD·Filed 1985·Granted Feb 24, 1987·13 cites·4 claims
- 1144US4370793AMethod of coupling two metallic membersHITACHI LTD·Filed 1980·Granted Feb 1, 1983·8 cites·21 claims
- 1243US4392296AMethod of joining two metal membersHITACHI LTD·Filed 1980·Granted Jul 12, 1983·6 cites·15 claims
- 1337US4541315AInside chuck device for machine toolsHITACHI LTD·Filed 1984·Granted Sep 17, 1985·6 cites·4 claims
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