Patents by Inventor Kazuo Kotobuki

Kazuo Kotobuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Japanese pear tree named ‘Akizuki’
    Patent number: PP12373
    Abstract: A new and distinct cultivar of russet type Japanese pear tree that has strong tree vigor and a strong resistance to black spot disease. This pear tree bears large size fruit, the harvesting stage of the fruit being mid to late in season after the ‘Hosui’ cultivar. This pear tree bears large size fruit having excellent quality, such as being highly sweet and weakly acidic.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: January 29, 2002
    Assignee: National Institute of Fruit Tree Science, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Yutaka Machida, Kazuo Kotobuki, Yoshihiko Sato, Kazuyuki Abe, Akio Kurihara, Tatsushi Ogata, Toshihiro Saito, Osami Terai, Toyohide Nishibata, Teruo Kozono, Hiroyuki Fukuda, Takeshi Kihara, Katsuyuki Suzuki
  • Japanese pear tree "Chikusui"
    Patent number: PP7758
    Abstract: Disclosed herein is a Japanese pear tree having a moderate vigor and an easily maintained moderate spur development, a high resistance to black spot disease and a high productivity. This tree produces an oblate-shaped fruit which matures early in the season, i.e., from the start to the middle of August, in the central part of the Kanto district, Japan. The fruit has a medium size and the same weight as `Kosui`, i.e., 250 to 300 g, a yellowish brown skin, and a white flesh which is soft, crisp and very juicy with a high Brix the pH of the juice being about 5.2, a particular smell without aromatic flavor, giving an excellent dessert quality.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: December 31, 1991
    Assignee: Fruit Tree Research Station Ministry of Agriculture, Forestry and Fisheries
    Inventors: Yutaka Machida, Kazuo Kotobuki, Ichiro Kajiura, Yoshihiko Sato, Teruo Kozono, Kitsuo Kanato, Kanetsugu Seike, Isao Shimura, Mitsuo Omura, Kazuyuki Abe, Akio Kurihara, Osamu Kishimoto
  • Japanese pear tree "Yasato"
    Patent number: PP8115
    Abstract: Disclosed is a Japanese pear tree bearing fruit with light green yellow skin, having a strong vigor, a stout shoot and a long internode, a high resistance to scab, and a high productivity. This tree produces a circular-ellipse-shaped fruit which matures early in the season, i.e., from the middle to the end of August, in the central part of the Kanto district, Japan. The fruit has a medium size and the same weight as "Chikusui", i.e., 250 to 300 g, and a yellowish white flesh which is soft, crisp and very juicy with a high Brix, the pH of the juicy being about 4.7-4.8, and little aromatic flavor, thus having an excellent dessert quality.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: January 26, 1993
    Assignee: Fruit Tree Research Station, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Kitsuo Kanato, Yutaka Machida, Akio Kurihara, Yoshihiko Sato, Kazuyuki Abe, Ichiro Kajiura, Kanetsugu Seike, Kazuo Kotobuki, Isao Shimura, Teruo Kozono, Tatsushi Ogata, Mitsuo Omura
  • Japanese pear tree Gold Nijisseiki
    Patent number: PP8529
    Abstract: The new and distinct cultivar relates to a Japanese pear tree that has a strong resistance to black spot disease and substantially has the same excellent qualities of "Nijisseiki" as a Japanese pear cultivar. This pear tree bears a yellowish green fruit, is moderately sweet and acidic, and has a good taste that is suitable for desserts.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: January 4, 1994
    Assignee: National Institute of Agrobiological Resources, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Teruo Nishida, Haruhiko Fujita, Fukio Ikeda, Tetsuro Sanada, Kazuo Kotobuki
  • Japanese pear tree `Hougetsu`
    Patent number: PP9179
    Abstract: Disclosed is a Japanese pear tree bearing fruit with yellow-reddish-brown skin; having good vigor, a stout shoot, high resistance to black spot disease, and high productivity. This tree produces circular-shaped fruit which mature late in the season (i.e., from the middle to end of October), in the central part of the Kanto district of Japan. This fruit is large, with an average weight of 607 g. The white flesh is soft, crisp, and very juicy. This flesh has a moderate Brix (the pH of the juice being about 4.32) and no aromatic flavor: thus, it possesses excellent dessert quality.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: June 27, 1995
    Assignees: Fruit Tree Research Station, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Kazuo Kotobuki, Yoshihiko Sato, Kazuyuki Abe, Toshihiro Saito, Isao Shimura, Kanetsugu Seiko, Mitsuo Omura, Ichiro Kajiura, Yutaka Machida, Akio Kurihara, Tatsushi Ogata, Teruo Kozono
  • Japanese pear tree named `Kotobuki Shinsui`
    Patent number: PP11545
    Abstract: The new and distinct cultivar relates to a russet type Japanese pear tree that has a strong resistance to black spot disease and has substantially the same excellent qualities as the Japanese pear cultivar `Shinsui`. The new pear tree bears a yellowish brown fruit, is highly sweet, medium in acidity, and has a rich taste that is suitable for dessert use.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: October 3, 2000
    Assignee: National Institute of Agrobiological Resources Ministry of Agriculture, Forestry and Fisheries
    Inventors: Kazuo Kotobuki, Tetsuo Masuda, Toji Yoshioka, Minoru Nagara, Masato Uchida, Kosuke Inoue, Kenji Murata, Kenichi Kitagawa
  • Japanese pear tree named `Osa Gold`
    Patent number: PP11656
    Abstract: The new and distinct cultivar relates to a Japanese pear tree that has a strong resistance to black spot disease and has substantially the same excellent qualities of `Osanijisseki` as a Japanese pear cultivar. This pear tree is self-compatible and bears a yellowish green fruit, is moderately sweet and acidic, and has a good taste that is suitable for a dessert pear.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: November 28, 2000
    Assignee: National Institute of Agrobiological Resources Ministry of Agriculture, Forestry and Fisheries
    Inventors: Kazuo Kotobuki, Tetsuro Sanada, Tetsuo Masuda, Toji Yoshioka, Minoru Nagara, Masato Uchida, Kosuke Inoue, Kenji Murata, Kenichi Kitagawa, Akira Yoshida