Ballpoint pen tip and ballpoint pen

A ballpoint pen tip includes a ball and a ball holder for rotatably holding the ball. The ball includes a ball body and a first carbonaceous film formed so as to cover a surface of the ball body. The first carbonaceous film has carbon atoms and oxygen atoms bonded to some of the carbon atoms. The ra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NAKATANI TATSUYUKI, NITTA YUKI, TAKAYAMA KOUICHI, MASUDA HIROTAKA, OKAMOTO KEISHI, ANDO SATORU, TOYOTA KUNIHIRO, KAJIWARA TAKUMI
Format:	Patent
Sprache:	eng
Schlagworte:	BUREAU ACCESSORIES IMPLEMENTS FOR WRITING OR DRAWING PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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