Solid drawing material

Assignee

• Mitsubishi Pencil Company, Limited

Inventors

• Huyen Nguyen Thi Thanh (1 patents)
• Tatsuya Murata (14 patents)
• Motohiro Kasai (1 patents)
• Katsunori Kitazawa (9 patents)
• Masaaki Matsumoto (76 patents)
• Kiyoshi Fujisawa (15 patents)
• Kiyohiko Kobayashi (7 patents)
• Yumi Morooka (1 patents)

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