Patent US1878669A successfully refreshed from Google Patents.
Patent US3919197A successfully refreshed from Google Patents.
Patent JPS5452798A successfully refreshed from Google Patents.
← Back to Patent Explorer
JPS5452798A Expired / Lapsed JP ⏱️ 0.0 years remaining

Treatment of tobacco leaf

Assignee: Japan Tobacco Inc
•
Filing: 1977-09-29
•
Granted: —
•
Expires: 1997-09-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: To remove nicotine from tobacco leaf, and to improve the flavor and taste of the leaf, by treating the tobacco leaf with a mixed gas of ammonia and humid air, wherein the concentration of ammonia, humidity, and flow velocity are kept in specific ranges. CONSTITUTION: Tobacco leaf containing nicotine and having ill-odor and irritant, bitter, or rough taste, is treated with ammonia/humid air mixed gas having an ammonia concentration of 0.002-0.006 kg/m 3 , temperature of 65-95°C and humidity of 60-85% RH, at a flow velocity of 0.2-0.6 m/sec. The effects given above can be attained by the treatment for 5-20 minutes COPYRIGHT: (C)1979,JPO&Japio

Inventors

  • 👤 Tetsuo Fukuzumi
  • 👤 Hideo Kobayashi
  • 👤 Takuo Shinohara
  • 👤 Michimasa Suzuki
  • 👤 Yukio Sone

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-08 16:16
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag