Company Filing History:
3 out of 4 
1 out of 2 
1 out of 1 Years Active: 1994-2002
Title: Kazuo Kotobuki: Innovator in Japanese Pear Cultivation
Introduction
Kazuo Kotobuki is a notable inventor based in Tsukuba, Japan, recognized for his contributions to the field of agriculture, particularly in the cultivation of Japanese pear trees. With a total of five patents to his name, Kotobuki has made significant advancements in developing new cultivars that enhance fruit quality and disease resistance.
Latest Patents
Among his latest innovations are two distinct cultivars of Japanese pear trees. The first is the 'Akizuki,' a new cultivar characterized by its strong tree vigor and notable resistance to black spot disease. This cultivar produces large-sized fruit that is harvested mid to late in the season, following the 'Hosui' cultivar. The 'Akizuki' pear is known for its excellent quality, being highly sweet with a mild acidity. The second cultivar, 'Osa Gold,' also exhibits strong resistance to black spot disease and shares many excellent qualities with the 'Osanijisseki' cultivar. 'Osa Gold' is self-compatible and yields yellowish-green fruit that is moderately sweet and acidic, making it an ideal choice for dessert pears.
Career Highlights
Kazuo Kotobuki has had a distinguished career, working with several esteemed organizations. He has been associated with the National Institute of Agrobiological Resources and the National Institute of Fruit Tree Science, both under the Ministry of Agriculture, Forestry and Fisheries. His work has focused on improving fruit tree cultivation techniques and developing new varieties that meet consumer demands.
Collaborations
Throughout his career, Kotobuki has collaborated with notable colleagues, including Tetsuro Sanada and Yutaka Machida. Their combined expertise has contributed to the successful development of innovative pear cultivars.
Conclusion
Kazuo Kotobuki's work in the field of Japanese pear cultivation has led to the creation of valuable new cultivars that enhance fruit quality and disease resistance. His contributions continue to impact the agricultural sector positively.