The term Kobudo translates as 'Old Martial Way' and is a generic term coined in the 20th century. It refers to weapon systems and originated in Okinawa. Current systems all started early in the 20th century although their roots can be traced back a lot further.
Matayoshi kobudo relates to a system from Okinawa developed by the Matayoshi family. Matayoshi Shinko studied weapons and travelled into China where he brought back a variety of kata and knowledge. He passed this on to his son Matayoshi Shinpo. Matayoshi Shinpo passed in 1997 and the style weas taken over by his only son Matayoshi Yasushi. Whilst Yasushi is a non-practitioner he is still the spiritual head of the system and advises on training etc. He still runs the Kodokan (named by Shinpo after his father Shinko) and welcomes instructors and students from around the world.
The systems has several weapons within its syllabus. These are the Bo (6 foot staff), Sai (3 pronged metal truncheon), Tonfa or Tunkua (wooden baton), Kama (sharp hand sickle), Nunchaku (two wooden sections joined by rope), Eku (oar), Tinbe-Rochin (shiled and spear), Sansetsukon (3 section staff), Nunti (a Bo with a Manji Sai at one end - like a spear), Kuwa (garden hoe), Tekko (like a knuckleduster) and Suruchin (two stones joined by a rope).
As you can see the origin of many of these relate to the implements commonly found around the home or farm.