Issued Patents All Time
Showing 1–25 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12269948 | Polyimide precursor solution and method for producing porous polyimide film | Mieko Seki | 2025-04-08 |
| 12018128 | Particle-dispersed polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film | Tomoya Sasaki, Kosaku YOSHIMURA, Yasunobu KASHIMA, Hajime SUGAHARA, Kosuke NAKADA +1 more | 2024-06-25 |
| 11958939 | Polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film | Kosuke NAKADA, Shigeru Seitoku, Takeshi Iwanaga, Tomoyo Okubo, Hajime SUGAHARA | 2024-04-16 |
| 11787942 | Polyimide precursor solution, method for producing porous polyimide film, porous polyimide film, and insulated wire | Shigeru Seitoku, Kosuke NAKADA, Takeshi Iwanaga | 2023-10-17 |
| 11680156 | Polyimide precursor-containing aqueous composition, method for producing polyimide film, and method for producing porous polyimide film | Yasunobu KASHIMA, Kosaku YOSHIMURA, Tomoya Sasaki, Kosuke NAKADA | 2023-06-20 |
| 11680140 | Particle-dispersed polyimide precursor solution, method for producing porous polyimide film, and porous polyimide film | Hajime SUGAHARA, Kosaku YOSHIMURA, Tomoya Sasaki, Yasunobu KASHIMA, Kosuke NAKADA +1 more | 2023-06-20 |
| 11673999 | Polyimide precursor solution and method for producing porous polyimide film | Tomoya Sasaki | 2023-06-13 |
| 11584837 | Porous polyimide film, lithium ion secondary battery, and all-solid-state battery | Yasunobu KASHIMA, Kosaku YOSHIMURA, Hajime SUGAHARA | 2023-02-21 |
| 11495863 | Porous polyimide film, secondary battery separator, and secondary battery | Kosuke NAKADA, Yasunobu KASHIMA, Kosaku YOSHIMURA, Tomoya Sasaki | 2022-11-08 |
| 11211670 | All-solid-state battery | Hajime SUGAHARA, Tomoya Sasaki, Kosaku YOSHIMURA, Yasunobu KASHIMA | 2021-12-28 |
| 11043718 | Porous polyimide film and battery | Kosaku YOSHIMURA, Yasunobu KASHIMA, Hajime SUGAHARA | 2021-06-22 |
| 10542623 | Porous polyimide shaped article | Hajime SUGAHARA, Katsumi Nukada, Tomoya Sasaki, Kosaku YOSHIMURA, Akira Imai | 2020-01-21 |
| 10471417 | Titanium oxide particle and method for producing the same | Hideaki Yoshikawa, Hiroyoshi Okuno, Takeshi Iwanaga, Yasunobu KASHIMA, Wataru Yamada +2 more | 2019-11-12 |
| 10265680 | Silica particle comprising a titania coating and method for producing the same | Hideaki Yoshikawa, Hiroyoshi Okuno, Takeshi Iwanaga, Yasunobu KASHIMA, Wataru Yamada +2 more | 2019-04-23 |
| 9772567 | Compound, electrophotographic photoreceptor, and process cartridge | Wataru Yamada | 2017-09-26 |
| 9535343 | Image forming method, image forming apparatus, and process cartridge | Katsumi Nukada, Tomoya Sasaki, Yuko IWADATE, Kenji Kajiwara, Tatsuki SANO | 2017-01-03 |
| 9310702 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Kenji Kajiwara, Katsumi Nukada, Yuko IWADATE | 2016-04-12 |
| 9235145 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Katsumi Nukada, Wataru Yamada, Yuko IWADATE, Kenji Kajiwara | 2016-01-12 |
| 9188886 | Image holding member for image forming apparatus, process cartridge, and image forming apparatus | Ryosaku Igarashi, Katsuhiro Sato | 2015-11-17 |
| 9182687 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Tomoya Sasaki, Katsumi Nukada, Wataru Yamada, Yuko IWADATE, Kenji Kajiwara | 2015-11-10 |
| 9057972 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Katsumi Nukada, Wataru Yamada, Yuko IWADATE, Kenji Kajiwara | 2015-06-16 |
| 9034543 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Yuko IWADATE, Wataru Yamada, Kenji Kajiwara, Katsumi Nukada, Ryo Sekiguchi +1 more | 2015-05-19 |
| 9005855 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Yuko IWADATE, Katsumi Nukada, Wataru Yamada, Tomoya Sasaki, Kenji Kajiwara | 2015-04-14 |
| 8962225 | Charge transporting film, photoelectric conversion device, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Tomoya Sasaki, Katsumi Nukada, Wataru Yamada, Kenji Kajiwara, Yuko IWADATE | 2015-02-24 |
| 8951701 | Composition for forming charge transporting film, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Yuko IWADATE, Katsumi Nukada, Wataru Yamada, Tomoya Sasaki, Kenji Kajiwara | 2015-02-10 |