HK

Hiroyuki Kawai

Mitsubishi Electric: 23 patents #784 of 25,717Top 4%
KC Kuraray Co.: 20 patents #32 of 1,827Top 2%
ND Ntt Docomo: 11 patents #259 of 1,706Top 20%
Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
RT Renesas Technology: 7 patents #409 of 3,337Top 15%
HM Hitachi Medical: 7 patents #98 of 680Top 15%
TO Toyota: 6 patents #4,786 of 26,838Top 20%
RE Renesas Electronics: 3 patents #1,322 of 4,529Top 30%
FI Fujifilm Business Innovation: 2 patents #2,833 of 5,238Top 55%
Kawasaki: 2 patents #1,008 of 2,943Top 35%
TL Toyota Central R&D Labs: 2 patents #528 of 1,657Top 35%
NS Nippon Steel: 2 patents #1,308 of 4,423Top 30%
Yamaha: 2 patents #899 of 2,001Top 45%
SC Shindengen Electric Manufacturing Co.: 1 patents #159 of 307Top 55%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
TC Toho Titanium Co.: 1 patents #86 of 153Top 60%
VH Vanson Halosource: 1 patents #5 of 14Top 40%
KC Kansai Paint Co.: 1 patents #432 of 822Top 55%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
IC Iwaki Co.: 1 patents #24 of 53Top 50%
NE Nec: 1 patents #7,889 of 14,502Top 55%
📍 Okayama, WA: #1 of 1 inventorsTop 100%
Overall (All Time): #15,378 of 4,157,543Top 1%
97
Patents All Time

Issued Patents All Time

Showing 1–25 of 97 patents

Patent #TitleCo-InventorsDate
12410555 Metal-covered liquid crystal polyester multifilament Tomoki Sakai, Takashi Katayama, Masashi Nishida, Tsugumi YOSHIDA 2025-09-09
12303342 Liquid processing nozzle for purifying liquid piping of dental device Masahiko Tanaka 2025-05-20
11936067 Alkaline battery separator and method for producing same Tomohiro Hayakawa, Haruna MITSUMORI, Toshimichi KUSUNOKI 2024-03-19
11884788 Reinforcing fiber, method for manufacturing same, and molded body using same Toru Asada, Daisuke Koda, Shuhei Yorimitsu, Shinichi Takemoto 2024-01-30
11502307 Manufacturing method of gas diffusion layer with microporous layer, and manufacturing method of fuel cell Yosuke Inoue 2022-11-15
11450922 Separator, and separator for alkaline manganese dry battery comprising same Tomoki Sakai, Tomohiro Hayakawa, Toshimichi KUSUNOKI 2022-09-20
11053610 Readily fibrillative polyvinyl alcohol fiber and method for manufacturing same Masami Kawakami, Toshiaki Kobayashi, Shinichi Takemoto, Tomohiro Hayakawa 2021-07-06
10890190 Magnetic pump Katsumi Kawaguchi, Toshinori Yanagihara 2021-01-12
10668416 Granular filtration media mixture and uses in water purification Yongjun Chen, Patricia Q. Bottari, Christopher R. Ashley, Andrew F. Mason 2020-06-02
10533287 Dispersant for carbon fibers, carbon fiber dispersion composition, and method for manufacturing carbon fiber sheet Tomohiro Hayakawa, Toshimichi KUSUNOKI, Hideo Kiyoyama 2020-01-14
10461294 Separator for alkaline batteries, and alkaline battery using same Tomohiro Hayakawa 2019-10-29
10446820 Alkaline battery separator Tomohiro Hayakawa, Toshimichi KUSUNOKI, Koichi Kambe 2019-10-15
10106923 Extra-fine fiber sheet Takayoshi Hosoya, Tomohiro Hayakawa, Hideo Hayashi 2018-10-23
10020124 Separator for electric double layer capacitors, and electric double layer capacitor Tomohiro Hayakawa, Hideo Hayashi 2018-07-10
9921638 Data processing system with selective engagement of standby mode based on comparison with a break-even time Masaru Haraguchi, Isamu Hayashi, Hideyuki Noda 2018-03-20
9748543 Separator for nonaqueous cell and nonaqueous cell Tomohiro Hayakawa, Hideo Hayashi, Koichi Kambe 2017-08-29
9712072 Inverter device Ken-Ichi Iwao 2017-07-18
9498742 Filtration material for filters, and filter cartridge Takayoshi Hosoya, Shinya Inada, Hideki Kamada 2016-11-22
9360922 Data processing system, microcontroller and semiconductor device Masaru Haraguchi, Isamu Hayashi 2016-06-07
9343721 Separator for non-aqueous batteries and non-aqueous battery equipped with same, and process for manufacturing separator for non-aqueous batteries Tomohiro Hayakawa, Takayoshi Hosoya, Hideo Hayashi, Yutaka Hayashi, Kohsuke Togashi +1 more 2016-05-17
9142816 Alkaline battery separator and alkaline battery using separator Tomohiro Hayakawa, Koichi Kambe 2015-09-22
9111649 Tamper resistant semiconductor device with access control Yoshifumi Kawamura, Hirofumi Nakano 2015-08-18
8865336 Separator for alkaline battery, method for producing the same, and battery Tomohiro Hayakawa, Shinya Inada, Hideo Hayashi, Masakazu Nishiyama 2014-10-21
8802271 Separator for non-aqueous batteries, non-aqueous battery using same, and production method for separator for non-aqueous batteries Tomohiro Hayakawa, Hideo Hayashi, Hideki Kamada, Takayoshi Hosoya 2014-08-12
8784562 Carbon nanotube production process and carbon nanotube production apparatus Masahiro Imanishi, Naoki Ito, Shigeaki Murata, Keisuke Nagasaka, Satoshi Nakazawa 2014-07-22