HI

Hiroyuki Iwasa

Ricoh Company: 12 patents #1,888 of 9,818Top 20%
IBM: 3 patents #26,272 of 70,183Top 40%
KA Kao: 2 patents #1,388 of 3,221Top 45%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #252,737 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11337866 Method for manufacturing absorbent body Tomoyuki Motegi, Yuki Kato, Ryuji Matsunaga, Takuaki Harada 2022-05-24
11207218 Method for producing absorber and method for producing absorbent article Yuki Kato, Ryuji Matsunaga, Takuaki Harada, Tomoyuki Motegi 2021-12-28
9116468 Powder storage container and image forming apparatus in which a gripping part includes a powder loading port and a sealing member Seiji Terazawa, Atsushi Inoue, Kaori Mitsuishi, Yuki Oshikawa, Tadashi Hayakawa +1 more 2015-08-25
8075974 Optical recording medium Hiroshi Deguchi, Eiko Hibino, Hiroko Ohkura, Kazunori Ito, Hajime Yuzurihara 2011-12-13
7920454 Optical recording medium, and method and apparatus for optical recording and reproducing thereof Michiaki Shinotsuka, Masaru Shinkai 2011-04-05
7767284 Optical recording medium, and, method for manufacturing the same, and method and apparatus for optical recording and reproducing thereof Michiaki Shinotsuka, Masaru Shinkai, Tatsuo Mikami, Yuki Nakamura, Tohru Yashiro 2010-08-03
7613091 Method for identifying double-layer disc and optical disc apparatus Michiaki Shinotsuka, Masaru Shinkai 2009-11-03
7601481 Multilayer phase-change information recording medium, and method for recording and reproducing using the same Masaru Shinkai, Michiaki Shinotsuka 2009-10-13
7491436 Optical information recording medium Masaru Shinkai, Michiaki Shinotsuka 2009-02-17
7464390 Optical information recording medium, and recording and reproducing apparatus of the same Michiaki Shinotsuka, Masaru Shinkai 2008-12-09
7439007 Phase change information recording medium having multiple layers and recording and playback method for the medium Michiaki Shinotsuka, Masaru Shinkai 2008-10-21
7260053 Optical recording medium, process for manufacturing the same, sputtering target for manufacturing the same, and optical recording process using the same Makoto Harigaya, Kazunori Ito, Hiroko Tashiro, Miku Mizutani, Michiaki Shinotsuka +1 more 2007-08-21
7042830 Phase-change optical information recording medium, and optical information recording and reproducing apparatus and method for the same Michiaki Shinotsuka, Takao Yamada, Toshio Matsushita, Yasuo Kanbara, Shigeki Okauchi 2006-05-09
7005172 Optical information recording medium and method for producing the same Masaru Shinkai, Michiaki Shinotsuka 2006-02-28
5887128 Method and apparatus for redundant disk storage system with offset Hiroaki Okumiya, Akira Takeshita, Makoto Tsurumi 1999-03-23
5806786 Web roll container Hirofumi Abe 1998-09-15
5572659 Adapter for constructing a redundant disk storage system Hideo Asano, Yutaka Shimizu 1996-11-05
5459870 Interface circuit for controlling data transfers Masayuki Murakami, Hirofumi Saitoh 1995-10-17