Location History:
- Fuchu, JP (1989)
- Machida, JP (1991 - 1995)
Company Filing History:
3 out of 10 
1 out of 1 
1 out of 3 Years Active: 1989-1995
Title: Isao Shimura: Innovator in Japanese Pear Cultivation
Introduction
Isao Shimura is a notable inventor based in Machida, Japan, recognized for his contributions to the field of horticulture, particularly in the cultivation of Japanese pear trees. With a total of 4 patents, Shimura has made significant advancements in fruit tree development, focusing on enhancing fruit quality and disease resistance.
Latest Patents
One of Shimura's latest patents is the Japanese pear tree 'Hougetsu'. This variety bears fruit with yellow-reddish-brown skin and is characterized by its good vigor, stout shoot, high resistance to black spot disease, and high productivity. The 'Hougetsu' tree produces circular-shaped fruit that matures late in the season, specifically from the middle to the end of October, in the central part of the Kanto district of Japan. The fruit is large, averaging 607 grams, with white flesh that is soft, crisp, and very juicy. It has a moderate Brix level, with a pH of about 4.32, and lacks aromatic flavor, making it an excellent choice for dessert.
Another significant patent is the Japanese pear tree 'Yasato'. This variety features light green-yellow skin and exhibits strong vigor, stout shoots, and long internodes. It also boasts high resistance to scab and high productivity. The 'Yasato' tree produces circular-ellipse-shaped fruit that matures early in the season, from the middle to the end of August, in the central part of the Kanto district. The fruit is medium-sized, weighing between 250 to 300 grams, with yellowish-white flesh that is soft, crisp, and very juicy. It has a high Brix level, with a pH of about 4.7-4.8, and minimal aromatic flavor, ensuring excellent dessert quality.
Career Highlights
Throughout his career, Isao Shimura has worked with esteemed organizations such as the Fruit Tree Research Station and the Ministry of Agriculture, Forestry and Fisheries. His work has focused on improving the quality and resilience of fruit trees, contributing to the agricultural sector in Japan.
Collaborations
Shimura has collaborated with notable colleagues, including Yutaka Machida and Ichiro Kajiura, to further enhance his research and development efforts in fruit cultivation.
Conclusion