Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681900 | Hydrogenated norbornene ring-opening polymerization product, a process for production thereof and uses thereof | Toshihide Murakami, Tadao Natsuume | 1997-10-28 |
| 5665795 | Resin compositions and molded articles | Yuji Koushima, Tadao Natsuume | 1997-09-09 |
| 5599882 | Ring-opening polymer and a process for production thereof | Yoshikatsu Nishi, Masayoshi Ohshima, Toshiyasu Matsui, Tadao Natsuume | 1997-02-04 |
| 5585989 | Magnetic disc substrate and a magnetic disc using the same | Miyuki Kuromiya, Hiroshi Takino, Masayoshi Oshima | 1996-12-17 |
| 5580934 | Ring-opening hydrogenated copolymer and process for producing the same | Yoshikatsu Nishi, Masayoshi Oshima, Tadao Natsuume | 1996-12-03 |
| 5571859 | Antistatic composition, resin composition and molded article of the resin composition | Hidenori Yukishige, Yuji Koshima, Hajime Tanisho | 1996-11-05 |
| 5561208 | Medical implement, polymer composition, and optical material | Nobukazu Takahashi, Tohru Hosaka, Koji Minami, Yuichiro Konishi, Tadao Natsuume | 1996-10-01 |
| 5543948 | Thermoplastic saturated norbornene resin phase plate | Nobukazu Takahashi, Tsutomu Hani, Tadao Natsuume | 1996-08-06 |
| 5539060 | Method for hydrogenation of metathesis polymers | Yasuo Tsunogae, Hideharu Mizuno, Tadao Natsuume | 1996-07-23 |
| 5468803 | Medical implement, polymer composition, and optical material | Nobukazu Takahashi, Tohru Hosaka, Koji Minami, Yuichiro Konishi, Tadao Natsuume | 1995-11-21 |
| 5462995 | Hydrogenated products of thermoplastic norbornene polymers, their production, substrates for optical elements obtained by molding them, optical elements and lenses | Tohru Hosaka, Hideharu Mizuno, Yuji Koushima, Tadao Natsuume | 1995-10-31 |
| 5437926 | Molded articles having hard coat layer | Nobukazu Takahashi, Tadao Natsuume | 1995-08-01 |
| 5399646 | Alkylidenenorbornene polymer and process for producing the same | Shin-ichiro Tahara, Yoshitsugu Hirokawa, Tadao Natsuume | 1995-03-21 |
| 5366812 | Thermoplastic materials and article made therefrom | Nobukazu Takahashi, Tadao Natsuume | 1994-11-22 |
| 5334424 | Thermoplastic norbornene resin formed articles and sustrates for liquid crystal display | Tsutomu Hani, Nobukazu Takahashi, Tadao Natsuume | 1994-08-02 |
| 5302656 | Molded article of norbornene-based polymer | Tadao Natsuume | 1994-04-12 |
| 5276098 | Thermoplastic saturated norbornene group polymer composition | Tadao Natsuume | 1994-01-04 |
| 5191026 | Ring-opening hydrogenated copolymer and process for producing the same | Yoshikatsu Nishi, Masayoshi Oshima, Tadao Natsuume | 1993-03-02 |
| 5187012 | Thermoplastic materials and article made therefrom | Nobukazu Takahashi, Tadao Natsuume | 1993-02-16 |
| 5143979 | Molding material | Yoshikatsu Nishi, Masayoshi Oshima, Tadao Natsuume | 1992-09-01 |
| 5106920 | Hydrogenated ring-opening polymer and process for producing same | Toshihide Murakami, Tadao Natsuume | 1992-04-21 |
| 5063096 | Optical disk | Masayoshi Oshima, Tadao Natsuume | 1991-11-05 |
| 5061771 | Ring-opened polymer from norbornene type of polycyclic monomer and process for producing the polymer | Masayoshi Oshima, Tohru Hosaka, Tadao Natsuume | 1991-10-29 |
| 5034482 | Process for producing polymer by ring-opening polymerization | Toshihide Murakami, Masayoshi Oshima, Tadao Natsuume | 1991-07-23 |
| 4925773 | Solder resist ink composition | Masataka Miyamura, Yuusuke Wada, Kazuhiro Takeda, Yuji Nakaizumi | 1990-05-15 |