4. Printing and office machinery
  5. Typewriter or calculator
  6. Element or attachment

Yasuo Ohba

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AlGaN compound semiconductor material

Metal treatment – Barrier layer stock material – p-n type – With contiguous layer doped to degeneracy
Patent

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Compound semicondutor light-emitting device

Coherent light generators – Particular active media – Semiconductor
Patent

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Double-heterostructure semiconductor with mesa stripe waveguide

Coherent light generators – Particular active media – Semiconductor
Patent

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Double-heterostructure semiconductor with mesa stripe waveguide

Coherent light generators – Particular active media – Semiconductor
Patent

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III-N semiconductor light-emitting element having...

Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – With lattice constant mismatch
Reexamination Certificate

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Profile ID: LFUS-PAI-P-234147

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