Yamashita is one of the leading fishing tackle manufacture that operates a factory in Yokosuka.

In addition to the business division, Yamashita maintains the research division for the development of new fishing tackle and fishing method, and also all Yamashita's members make new products by their own experienced idea.
Particularly, Yamashita's first biggest brand "GOLDEN BAIT" is of original design after years of research by the founder Kusutaro Yamashita.
Its another brand "MARIA" is for Plastic Minnows-Wobblers and Metal Jigs made in its own factory in Japan with its original idea and also with many opinions from its contacted field-testers.

Many of its products under "YAMASHITA" brand are made on demand from many customers and fishermen.