4. Tools
  5. Wrench, screwdriver, or driver therefor
  6. Responsive to torque on work

Shuhei Ogawa

Inventor

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Control valve

Valves and valve actuation – Reciprocating valve – Gate
Patent

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Controller

Valves and valve actuation – Hermetic flexible wall seal for actuator – Bellows
Patent

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Magnetic tightening tool for preventing overtightening and under

Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Patent

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Metal diaphragm type valve

Valves and valve actuation – Hermetic flexible wall seal for actuator – Diaphragm
Patent

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Plasma etching method, plasma etching apparatus, control...

Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate

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Profile ID: LFUS-PAI-P-298193

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