HM

Hiroyuki Matsumoto

HI Hitachi: 3 patents #512 of 4,225Top 15%
NK Nippon Kayaku: 3 patents #2 of 24Top 9%
Bridgestone: 1 patents #50 of 185Top 30%
Mazda Motor: 1 patents #25 of 154Top 20%
IBM: 1 patents #1,943 of 5,539Top 40%
📍 Tokyo, CA: #18 of 216 inventorsTop 9%
Overall (2003): #2,368 of 273,478Top 1%
9
Patents 2003

Issued Patents 2003

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6665147 Magnetic disk drive with supply of perfluoropolyether as lubricant Takayuki Nakakawaji, Mina Ishida, Yutaka Ito, Hiroshi Tani 2003-12-16
6648952 Anthrapyridone compound, aqueous magenta ink compositions and ink-jet recording method Yasuo Murakami, Junko Yoshioka, Yasuo Shirasaki, Katsunori Fujii 2003-11-18
6645283 Anthrapyridone compounds, water-based magenta ink composition, and method of ink-jet printing Takafumi Fujii, Yasuo Shirasaki, Hirokazu Kitayama 2003-11-11
6605335 Magnetic recording medium Hiroshi Tani, Mitsuhiro Shyoda, Tomonori Kozaki, Takayuki Nakakawaji, Yoko Ogawa 2003-08-12
6591880 Pneumatic tire including zig-zag circumferential fine grooves Ken Masaoka, Akiyoshi Shimizu 2003-07-15
6555197 Lubricant, magnetic disk and magnetic disk apparatus Mina Ishida, Takayuki Nakakawaji, Yutaka Ito, Hiroshi Tani, Heigo Ishihara 2003-04-29
6530985 Water-based magenta ink composition and method of ink-jet recording Yasuo Shirasaki, Katsunori Fujii, Yoshiki Akatani 2003-03-11
6523892 Seat structure for vehicle Masayuki Kage, Kazutaka Ishikura, Takao Fukuda, Toshihiro Ishikawa, Naoki Okano 2003-02-25
6510544 Wiring design apparatus and method thereof Minoru Katsumata, Kazuhiko Hirayama 2003-01-21