Hiroyuki Oka

Shown below are some of Hiroyuki Oka’s past works.
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3 Sun 4 Step Natural Wood/Koyosegi Japanese Puzzle Box

3 Sun 4 Step Natural Wood / Koyosegi Japanese Puzzle Box

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5 Sun 36 Step Yosegi Japanese Puzzle Box

5 Sun 36 Step Yosegi Japanese Puzzle Box

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5 Step Right & Left Natural Wood and Ichimatsu Japanese Puzzle Box

5 Step Right & Left Natural Wood and Ichimatsu Japanese Puzzle Box

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Mame 12 Step Natural Wood and Yosegi Japanese Puzzle Box

Mame 12 Step Natural Wood and Yosegi Japanese Puzzle Box

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4 Sun 12 Step M Design Yosegi Japanese Puzzle Box

4 Sun 12 Step M Design Yosegi Japanese Puzzle Box

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3.5 Sun Cube Limited Edition DOUBLE COMPARTMENT Japanese Puzzle Box

3.5 Sun Cube Limited Edition DOUBLE COMP. Puzzle Box

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3 Sun 4 Step Ichimatsu Japanese Puzzle Box By Mr. Oka

3 Sun 4 Step Ichimatsu Japanese Puzzle Box

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4 Sun 12 Step Limited Edition Natural Wood Japanese Puzzle Box

4 Sun 12 Step Limited Edition Natural Wood Japanese Puzzle Box

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2 Sun 7 Step Kobako Cubic Japanese Puzzle Box

2 Sun 7 Step Kobako Cubic Japanese Puzzle Box

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4 Sun 14 Step M Design Limited Edition Natural Wood Japanese Puzzle Box

4 Sun 14 Step M Design Limited Edition Natural Wood Japanese Puzzle Box

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4 Sun 10 Step Yosegi Kuzushi Japanese Puzzle Box

4 Sun 10 Step Yosegi Kuzushi Japanese Puzzle Box

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3 Sun 14 Step Yosegi Cubic Japanese Puzzle Box

3 Sun 14 Step Yosegi Cubic Japanese Puzzle Box

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7 Sun 78 Step Yosegi Japanese Puzzle Box

7 Sun 78 Step Yosegi Japanese Puzzle Box By Mr. Hiroyuki Oka

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Mame 12 Step NATURAL WOOD Japanese Puzzle Box

Mame 12 Step MUKU Natural Wood Japanese Puzzle Box

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Japanese Puzzle in Puzzle Box

Japanese Puzzle in Puzzle Box

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4 Sun 6 Step MAZE Limited Edition Japanese Puzzle Box

4 Sun 6 Step MAZE Limited Edition Japanese Puzzle Box

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5 Sun 14 Step Yosegi Japanese Puzzle Box

5 Sun 14 Step Yosegi Hand Signed Japanese Puzzle Box

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5 Step STAR Yosegi and Natural Wood Japanese Puzzle Box 2

5 Step STAR Yosegi and Natural Wood Japanese Puzzle Box

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4 Sun 7 MAZE Yosegi Japanese Puzzle Box

4 Sun 7 Step MAZE Yosegi Japanese Puzzle Box

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Honeybee Japanese Puzzle Box by Hiroyuki Oka

Honeybee Japanese Puzzle Box by Hiroyuki Oka

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5 Step Triangle Yosegi Japanese Puzzle Box By Mr. Oka

5 Step Triangle Yosegi Japanese Puzzle Box By Mr. Oka

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Hexagon Japanese Puzzle Box by Hiroyuki Oka

Hexagon Japanese Puzzle Box by Hiroyuki Oka

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6 Step Pentagon Yosegi Japanese Puzzle Box

6 Step Pentagon Yosegi Japanese Puzzle Box

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3 Sun 14 Step Natural Wood Cubic Japanese Puzzle Box

3 Sun 14 Step Natural Wood Cubic Japanese Puzzle Box

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5 + 2 Step Natural Wood Maze Secret Japanese Puzzle Box

5 + 2 Step Limited Edition Natural Wood Maze Puzzle Box

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Chip Japanese Puzzle Box by Hiroyuki Oka

Chip Japanese Puzzle Box by Hiroyuki Oka

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5 Sun 13 Step Yosegi Japanese Puzzle Box By Mr. Oka

5 Sun 13 Step Yosegi Japanese Puzzle Box By Mr. Oka

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7 Sun 78 Step Natural Wood / Koyosegi Japanese Puzzle Box

7 Sun 78 Step Natural Wood / Koyosegi Japanese Puzzle Box