US Plant Patent PP32842
HOKSY 10gokin
Shiitake mushroom named ‘HOKSY 10gokin’
UNDER PATENT
Still under patent. Protection ends February 7, 2039.
Twenty years from the filing date would end on March 30, 2038. This patent earned 314 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP32842
- Filed
- March 30, 2018
- Granted
- February 23, 2021
- Expires
- February 7, 2039
- Assignee
- HOKUTO CORP
- Inventor
- SAKUTA Genki; AIZAWA MOMOKO
Abstract
The present variety of mushroom named ‘HOKSY 10gokin’ was cultivated by the gathering and repeated breeding of Shiitake mushrooms having dominant traits, which has good qualitative character and appearance, a white stem of high quality, and enhanced cultivation. This edible mushroom is exquisite in stability, reproducibility and uniformity when being produced.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new, distinct variety of Shiitake mushroom as substantially illustrated and described in the specification.
Read the full patent: US Plant Patent PP32842 in full — the complete specification, every figure, and the file history.