Master Kunio Ishikawa is 3rd generation blocksmith. 
4th generation as Mr. Takahiro Ishikawa started blacksmith work after graduated from University in Kyoto

Kurouchi or blacksmith finish is a black carbonized finish put on knives to protect the steel and provide a barrier against corrosion on carbon steel knives. It also adds strength to the inner core.

These knives are confident with a nice look and feel. I am extremely pleased to be carrying them. As this is an all carbon blade, care must be taken to clean and dry it after use.

Use and Care:

• Do not attempt to cut, hit, or chop frozen products or bones. The blade can chip or break with improper use.
• Hand wash with warm water and towel dry. Never put the knife in a dishwasher, nor soak it in water. Ever!
• Use a sharpening stone to maintain the sharpness of the blade.
• Do not use on hard melons or items that may torque the blade.