Ogarite - Ogarite

Japanese: オガライト - おがらいと

...At that time, wood industry complexes began to be built, and sawmills also gathered there, so sawdust accumulated and even became a source of pollution. One method of disposal was the production of artificial firewood (Ogalight), which was most widely produced in 1967-68. At that time, sawdust also established itself as a raw material for activated carbon.

From [Firewood]

...There is also firewood made by molding powdered wood. Japan's Ogalight (product name) is a typical example, which is made by compressing and heating sawdust and wood industry waste materials such as chips and bark. The product is square or round, 5 to 7 cm in diameter, with a 1 cm hole in the center. ...

*Some of the terminology that mentions "Ogalight" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…おりから木材工業団地がつくられ始め，製材工場も集まったため，おがくずも集積して公害源にさえなった。おがくずをかためた人工薪〈オガライト〉は，その処理方法の一つとなり，67‐68年に最も多くつくられた。そのころおがくずは活性炭の原料としての地位も確立した。…