Title:
シャープペンシル
Document Type and Number:
Japanese Patent JP7443229
Kind Code:
B2
Abstract:
A mechanical pencil includes a writing lead, a chuck that chucks the writing lead and feeds the writing lead forward, and a shaft tube for housing the writing lead and the chuck. When a click operation for feeding the chuck forward is performed, a jet stream flowing forward is generated inside the shaft tube.
Inventors:
▲陰▼山 秀平
Tadao Kodaka
Toshikazu Sasaki
Tadao Kodaka
Toshikazu Sasaki
Application Number:
JP2020219984A
Publication Date:
March 05, 2024
Filing Date:
December 14, 2020
Export Citation:
Assignee:
Toshi Co., Ltd.
International Classes:
B43K21/00
Domestic Patent References:
| JP57189898A | ||||
| JP2006027027A |
Foreign References:
| US2510312 |
Attorney, Agent or Firm:
Kita Aoyama International Patent Attorney Corporation