Tomio Yamakawa

Advancements in Cone-type Rotary Piercing Technology

Masayoshi Akiyama, Chihiro Hayashi, Tomio Yamakawa, 1999 .

Influences of Piercing Ratio, Expansion Ratio, Feed, Cross and Skew Angles on Available Piercing Size Range in Rotary Piercing Process

Chihiro Hayashi, Tomio Yamakawa, 1998 .

Influences of feed and cross angle on rotary forging effects and redundant shear deformations in rotary piercing process

Chihiro Hayashi, Tomio Yamakawa, C. Hayashi, 1997 .

A New Reduction of Some Carboxylic Esters with Sodium Borohydride and Zinc Chloride in the Presence of a Tertiary Amine

Tomio Yamakawa, Hiroyuki Nohira, Mitsuo Masaki, 1991 .