Patent US5405635A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5405635A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of preparing pressure-treated rice

Assignee: Echigo Seika Co Ltd
•
Filing: 1990-05-01
•
Granted: 1995-04-11
•
Expires: 2010-05-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention provides a method of preparing pressure-treated rice characterized by placing washed polished rice directly or as enclosed in a container into a liquid within a pressure chamber and applying a high pressure to the pressure chamber for a suitable period of time, and a container for cooking the pressure-treated rice in a microwave oven characterized in that the cooking container comprises a container body, a closure for the container body, and a partition provided inside the container body, the partition having a multiplicity of steam ports and being disposed in the interior of the container body for dividing the interior into an upper portion for accommodating the rice therein and a lower portion for accommodating therein water for steaming the rice. The method readily affords the pressure-treated rice, which can be cooked to a state suited to eating when heated for a short period of time with a reduced likelihood of impairing the flavor, taste and nutrients. The container permits a microwave oven to boil and steam the rice effectively by heating to cook the rice satisfactorily within a very short period of time.

Inventors

  • 👤 Rikimaru Hayashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:46
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/197; A47; A47J; A47J27/00; A47J27/08; A47J27/088; A23B; A23B9/00; A23L5/00; A23L5/10; A23L5/13; A23L7/196; A23L7/1975

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 94 words
A method of preparing pressure-treated rice comprising the steps of placing washed polished rice directly into water within a pressure chamber and applying a high pressure to the pressure chamber, the pressure being not lower than 1,000 atm to not higher than 9,000 atm, said pressure being applied for a time sufficient to denature the rice and to produce a rice product having high hardness and which is more similar to uncooked polished rice than to cooked rice, said rice product being suitable for eating after being cooked for a short period of time.
Claim 2
Independent Claim 94 words
A method of preparing pressure-treated rice comprising the steps of placing washed polished rice directly into water within a pressure chamber and applying a high pressure to the pressure chamber, the pressure being not lower than 1,000 atm to not higher than 9,000 atm, said pressure being applied for a time sufficient to denature the rice and to produce a rice product having high hardness and which is more similar to uncooked polished rice than to cooked rice, said rice product being suitable for eating after being cooked for a short period of time.
Claim 3
Dependent Claim 14 words
A method according to claim 1 wherein the pressure is at least 2000 atmospheres.
Claim 4
Dependent Claim 14 words
A method according to claim 1 wherein the pressure is at least 4000 atmospheres.
Claim 5
Dependent Claim 14 words
A method according to claim 1 wherein said pressure is applied for 20-50 minutes.
Claim 6
Dependent Claim 21 words
A method according to claim 1 further comprising removing the pressure-treated rice from the pressure chamber and drying the removed rice.

References Cited (Backward Citations)

JPS5672655A Cited
JPS6413955A Cited
US4952416A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-04-10 1998-10-10 1999-04-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-04-10 2002-10-10 2003-04-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-04-10 2006-10-10 2007-04-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag