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Akira Doi

HI Hitachi: 8 patents #5,191 of 28,497Top 20%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
NC Nissin Electric Co.: 6 patents #13 of 208Top 7%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
MK Morikawa Sangyo Kabushiki Kaisha: 3 patents #1 of 10Top 10%
VM Via Mechanics: 3 patents #2 of 34Top 6%
HH Hitachi High-Technologies: 2 patents #456 of 1,200Top 40%
HM Hitachi Via Mechanics: 2 patents #20 of 109Top 20%
FH Fuji Oil Holdings: 2 patents #101 of 368Top 30%
MI Morikawa Industries: 1 patents #8 of 19Top 45%
KA Kao: 1 patents #1,961 of 3,221Top 65%
📍 Itami, JP: #47 of 1,436 inventorsTop 4%
Overall (All Time): #78,999 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
5843293 Arc-type evaporator Hiroshi Murakami, Tadashi Kitagawa, Haruo Hiratsuka, Takaya Ishii, Koji Okamoto 1998-12-01
5653106 Exothermic heat generating apparatus Hideaki Katashiba, Ryoji Nishiyama, Hiroshi Kimura, Tsuneo Yumikura, Yoshiaki Akase +1 more 1997-08-05
5565070 Solvent vapor sucking method and solvent recovering apparatus Hiroshi Obinata, Yoshikazu Takano, Osamu Matsumura 1996-10-15
5503591 Apparatus for decontaminating substances contaminated with radioactivity Kenji Morikawa, Yasuo Shimizu 1996-04-02
5356661 Heat transfer insulated parts and manufacturing method thereof Shosaku Yamanaka, Hiromu Kawai 1994-10-18
5302324 Method for decontaminating substances contaminated with radioactivity, and method for decontaminating the materials used for said decontamination Kenji Morikawa, Yasuo Shimizu 1994-04-12
5126077 Radioactive decontamination method using methylene chloride Kenji Morikawa, Toshio Tenjin, Yasuo Shimizu 1992-06-30
5023101 Shortening for hard butter product and process for producing hard butter product Hirosi Sugihara, Hiroshi Hidaka, Toshitaka Okawauchi, Yasushi Kawabata, Hideki Baba 1991-06-11
4882238 Die for use in forming lens Takashi Yoshioka 1989-11-21
4634600 Surface treatment process Yasuhiro Shimizu 1987-01-06
4501717 Sintering method using a plasma gas atmosphere Shinya Tsukamoto, Kunihiro Takahashi 1985-02-26
4485080 Process for the production of diamond powder Hideo Shingu, Keiichi Ishihara, Naoji Fujimori 1984-11-27
4474849 Coated hard alloys Naoji Fujimori, Yasuhiro Shimizu 1984-10-02
4425369 Cheese-containing composition for dessert making and process for producing the same Kenshi Sakamoto 1984-01-10
4383957 Method of sintering a ceramic composition Akira Yamakawa, Yoshihiko Doi 1983-05-17