Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9214666 | Graphite material with lattice distortion for use in lithium-ion secondary battery negative electrodes, and lithium-ion secondary battery | Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Toshiyuki Oda, Ippei Fujinaga +6 more | 2015-12-15 |
| 9147873 | Method of producing amorphous carbon material for the negative electrode of lithium ION secondary battery, and lithium ION secondary battery | Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Toshiyuki Oda, Ippei Fujinaga +6 more | 2015-09-29 |
| 9142832 | Graphite material for negative electrodes of lithium ion secondary battery, manufacturing method for said material, and lithium ion secondary battery using same | Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Toshiyuki Oda, Ippei Fujinaga +6 more | 2015-09-22 |
| 8784644 | Stock oil composition for carbonaceous material for negative electrode of lithium-ion secondary battery | Takashi Oyama, Hiroshi Ozawa, Jun Ougiya, Akio Sakamoto | 2014-07-22 |
| 8741125 | Raw oil composition for negative electrode material for lithium ion secondary battery | Takashi Oyama, Ippei Fujinaga, Masayuki Tasaki, Akio Sakamoto | 2014-06-03 |
| 8715484 | Process for producing needle coke for graphite electrode and stock oil composition for use in the process | Takashi Oyama, Toshiyuki Oda, Ippei Fujinaga, Hiromitsu Hashisaka | 2014-05-06 |
| 8697025 | Raw material charcoal composition for negative electrode material of lithium ion secondary battery and method for producing the same | Takashi Oyama, Hiromitsu Hashisaka, Akio Sakamoto | 2014-04-15 |
| 8617508 | Carbon material for negative electrode of lithium secondary battery and method for producing the same | Takashi Suzuki, Akio Sakamoto, Kazuhisa Nakanishi, Takashi Oyama | 2013-12-31 |
| 8226921 | Raw coke for electricity storage carbon material and needle coke | Takashi Oyama, Kazuhisa Nakanishi, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka +7 more | 2012-07-24 |
| 8197788 | Raw coke for electricity storage carbon material and needle coke | Takashi Oyama, Kazuhisa Nakanishi, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka +7 more | 2012-06-12 |
| 8137530 | Process for producing petroleum coke | Takashi Oyama, Kazuhisa Nakanishi, Toshiyuki Oda, Keiji Higashi | 2012-03-20 |
| 7993619 | Raw oil composition for carbon material for electric double layer capacitor electrode | Takashi Oyama, Ippei Fujinaga, Hideki Ono, Masaki Fujii | 2011-08-09 |
| 7964173 | Feedstock composition and raw coke for electricity storage carbon material and needle coke | Takashi Oyama, Kazuhisa Nakanishi, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka +3 more | 2011-06-21 |
| 7959888 | Raw coke for electricity storage carbon material and needle coke | Takashi Oyama, Kazuhisa Nakanishi, Keiji Higashi, Ippei Fujinaga, Hiromitsu Hashisaka +7 more | 2011-06-14 |
| 7754178 | Raw-material carbon composition for carbon material for electrode of electric double-layer capacitor | Takashi Oyama, Hideki Ono, Keizo Ikai, Kiwamu Takeshita | 2010-07-13 |
| 7582902 | Raw material carbon composition for carbon material for electrode in electric double layer capacitor | Shiro Nakamo, Takashi Oyama, Hideki Ono, Keizou Ikai, Kiwamu Takeshita | 2009-09-01 |
| 6882517 | Raw material composite for carbon material used in electric double layer capacitor, manufacturing method of the same, electric double layer capacitor, and manufacturing method of the same | Takashi Oyama, Akinori Mogami, Makoto Takeuchi, Hiroshi Kobayashi, Yukinori Kude | 2005-04-19 |