HK

Hiroshi Koyama

Nsk: 16 patents #65 of 1,559Top 5%
Mitsubishi Electric: 16 patents #1,485 of 25,717Top 6%
YU Yupo: 11 patents #5 of 72Top 7%
DI Daicel Chemical Industries: 11 patents #44 of 893Top 5%
TO Toyota: 9 patents #3,216 of 26,838Top 15%
Canon: 8 patents #7,260 of 19,416Top 40%
HI Hitachi: 8 patents #5,191 of 28,497Top 20%
Honda Motor Co.: 7 patents #3,151 of 21,052Top 15%
SC Sanyo Electric Co.: 5 patents #1,180 of 6,347Top 20%
NC Nhk Spring Co.: 5 patents #150 of 1,116Top 15%
MO Morpho: 4 patents #26 of 161Top 20%
HC Hitachi Ulsi Systems Co.: 4 patents #214 of 867Top 25%
TC Toppan Printing Co.: 4 patents #201 of 1,467Top 15%
SO Sony: 4 patents #8,966 of 25,231Top 40%
DA Daicel: 4 patents #85 of 523Top 20%
AC Akita Electronics Co.: 3 patents #12 of 68Top 20%
PE Pentax: 3 patents #351 of 761Top 50%
DE Denso: 3 patents #3,857 of 11,792Top 35%
OC Oji Yuka Goseishi Co.: 3 patents #8 of 35Top 25%
HS Hitachi Microcomputer System: 3 patents #41 of 257Top 20%
RT Renesas Technology: 2 patents #1,374 of 3,337Top 45%
TB Toyoda Boshoku: 2 patents #14 of 112Top 15%
KC Kyodo Printing Co.: 2 patents #26 of 93Top 30%
TC Toyo Seikan Co.: 2 patents #321 of 888Top 40%
HP HP: 1 patents #3,612 of 7,018Top 55%
AC Akita Electronics Systems Co.: 1 patents #3 of 36Top 9%
DC Dena Co.: 1 patents #81 of 210Top 40%
DC Diesel Kiki Co.: 1 patents #181 of 366Top 50%
TS Tokyo Kikai Seisakusho: 1 patents #91 of 195Top 50%
KW Kanto Auto Works: 1 patents #12 of 39Top 35%
LC Laurel Bank Machines Co.: 1 patents #90 of 139Top 65%
MD Mitsubisih Denki: 1 patents #26 of 381Top 7%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
NC Nissan Diesel Motor Co.: 1 patents #52 of 125Top 45%
NC Nisshin Steel Co.: 1 patents #240 of 514Top 50%
SH Shimadzu: 1 patents #1,152 of 2,007Top 60%
TC Tokyo Ohka Kogyo Co.: 1 patents #437 of 684Top 65%
TC Tokyo Sanyo Electric Co.: 1 patents #24 of 89Top 30%
TC Toyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
ZG Zexel Gmbh: 1 patents #175 of 348Top 55%
📍 Tokyo, CO: #2 of 23 inventorsTop 9%
Overall (All Time): #7,677 of 4,157,543Top 1%
135
Patents All Time

Issued Patents All Time

Showing 1–25 of 135 patents

Patent #TitleCo-InventorsDate
12391554 Surface-modified nanodiamond, nanodiamond dispersion composition, and method for manufacturing surface-modified nanocarbon particles Takeru KASHIWAGI 2025-08-19
12209614 Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle Kouhei Mori, Mizuki Watanabe, Isao Shintou 2025-01-28
12110206 Image forming apparatus 2024-10-08
11904383 Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle Tetsurou Maruno, Nobuyuki Hagiwara, Tokumasa Kikuchi 2024-02-20
11643476 Cellulose ester and molded article thereof Tomohiro HASHIZUME, Hiroyuki Matsumura, Tohru Shibata, Mitsuru Ohno, Tomoichi Watabe 2023-05-09
11560619 Laminate and method of producing the same, and gas barrier film and method of producing the same Jin Sato, Mitsuru Kano 2023-01-24
11520257 Image forming apparatus 2022-12-06
11170262 Training system, training device, method for training, training data creation device, training data creation method, terminal device, and threshold value changing device Yasuhiro Kuroda, Masaki Hiraga, Kenji Okuma, Michihiro Kobayashi 2021-11-09
11162538 Method and device for manufacturing bearing unit Nobuyuki Hagiwara, Kazuto Kobayashi, Isao Shintou, Toshio Nakamura 2021-11-02
11151696 Image processing apparatus, image processing method, and non-transitory computer-readable medium 2021-10-19
11103917 Orbital forging device, method for orbital forging, method for manufacturing hub unit bearing using method for orbital forging, and method for manufacturing vehicle Tetsurou Maruno, Nobuyuki Hagiwara, Tokumasa Kikuchi 2021-08-31
11005065 Laminate comprising tantalum oxide and method of producing the same, gas barrier film and method of producing the same, and organic light-emitting element Jin Sato, Mitsuru Kano, Kyoko Kuroki 2021-05-11
10927190 Cellulose ester and molded article thereof Tomohiro HASHIZUME, Hiroyuki Matsumura, Tohru Shibata, Mitsuru Ohno, Tomoichi Watabe 2021-02-23
10915056 Drum cartridge and method for manufacturing drum cartridge Shotaro Ishihara, Atsushi Endo, Tomonori Kitan 2021-02-09
10557505 Method and device for manufacturing bearing unit Nobuyuki Hagiwara, Kazuto Kobayashi, Isao Shintou, Toshio Nakamura 2020-02-11
10527999 Cartridge unit and image forming apparatus having features to prevent erroneous cartridge unit locking Ryota Yasui 2020-01-07
10464151 Raceway groove machining method, bearing, ball screw device, machine and vehicle production method Masahito Yamamoto 2019-11-05
10391542 Method for manufacturing rolling bearing unit and method for manufacturing vehicle Nobuyuki Hagiwara, Kazuto Kobayashi, Isao Shintou, Toshio Nakamura 2019-08-27
10369612 Method and system for producing ring-shaped member for vehicle, and synchronizer ring Kazuto Kobayashi, Yuu Yasuda 2019-08-06
10343209 Method of manufacturing bearing unit, and rotary press device Nobuyuki Hagiwara, Toshio Nakamura, Isao Shintou, Kazuto Kobayashi 2019-07-09
10280837 Engine-driven working machine Masashi Kai 2019-05-07
10247151 Fuel-tank-equipped working machine Masashi Kai 2019-04-02
10224783 Engine-driven working machine Masashi Kai 2019-03-05
10196740 Laminate and method of manufacturing the same, and gas barrier film and method of manufacturing the same Mitsuru Kano, Jin Sato 2019-02-05
10137541 Method for manufacturing bearing ring member Masahito Yamamoto, Kazuto Kobayashi 2018-11-27