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Assignee profile:

HITACHI, LTD.

City:

Tokyo

Country:

Japan

Published Applications:

20,055

Last publication date:

2026-06-04

Patent Grants:

18,066

Last grant date:

2026-05-05

Hitachi, Ltd. is a Japanese multinational conglomerate headquartered in Tokyo, Japan. Founded in 1910, it is one of the largest companies in Japan and is listed on the Tokyo Stock Exchange. Hitachi is a diversified company that operates in eleven business segments, including information and telecommunication systems, power systems, construction machinery, automotive systems, digital media and consumer products. It has operations in over 100 countries and employs over 300,000 people worldwide.

Quarterly HITACHI, LTD. Patent Applications

Top Inventors for applications by HITACHI, LTD.

These are the the leading inventors for applications assigned to HITACHI, LTD.:

Yoshiaki Eguchi 166 Yokohama, Japan
Masayuki Yamamoto 147 Sagamihara, Japan
Hitachi, Ltd. 119 Tokyo, Japan
Akira Yamamoto 112 Sagamihara, Japan

Yasutomo Yamamoto 109 Sagamihara, Japan
Nobuhiro MAKI 90 Yokohama, Japan
Masayasu ASANO 89 Yokohama, Japan
Koji Hirata 89 Yokohama, Japan

Yoshifumi Takamoto 83 Kokubunji, Japan
Yasunori Kaneda 83 Sagamihara, Japan
Yuichiro NAKAYA 82 Suginami-ku, Japan
Mitsuo Hayasaka 78 Tokyo, Japan

Naoto MATSUNAMI 78 Hayama, Japan
Kentaro Shimada 76 Tokyo, Japan
Akira YAMAMOTO 75 Tokyo, Japan
Ai Satoyama 71 Sagamihara, Japan

Tomohiro KAWAGUCHI 69 Tokyo, Japan
Nobuyuki Saika 69 Yokosuka, Japan
Akira FUJIBAYASHI 68 Sagamihara, Japan
Takahiro YAMAMOTO 68 Tokyo, Japan

Akira DEGUCHI 68 Tokyo, Japan
Takahiro Nakano 66 Yokohama, Japan
Hiroyuki Minemura 64 Kokubunji, Japan
Masakuni Agetsuma 64 Tokyo, Japan

Takashige IWAMURA 61 Yokohama, Japan
Masaaki Iwasaki 61 Tachikawa, Japan
Takashi Oeda 61 Sagamihara, Japan
Yuichi TAGUCHI 60 Sagamihara, Japan

Kenta Ninose 59 Yokohama, Japan
Masahiro Watanabe 59 Yokohama, Japan
Masahiko Yatsu 59 Fujisawa, Japan
Takafumi Miyatake 58 Hachioji, Japan

Harukazu Miyamoto 57 Higashimurayama, Japan
Hiroaki Akutsu 57 Tokyo, Japan
Hiroshi Arakawa 56 Sagamihara, Japan
Nobuo Kawamura 56 Atsugi, Japan

Riichiro Takemura 56 Tokyo, Japan
Hideo Saito 55 Tokyo, Japan
Kazuhiko Yanagawa 55 Mobara, Japan
Yusuke Hirakawa 54 Odawara, Japan

Keisuke Hatasaki 53 Kawasaki, Japan
Yoshinori OHIRA 52 Tokyo, Japan
Yuri Hiraiwa 52 Sagamihara, Japan
Yoshihiro Asaka 51 Odawara, Japan

Satoru Hanzawa 50 Hachioji, Japan
Michiya OKADA 50 Mito, Japan
Takashi YANO 49 Tokorozawa, Japan
Takashi Tameshige 49 Tokyo, Japan

Kensuke Amemiya 48 Hitachinaka, Japan
Kikuo Ono 47 Mobara, Japan
Ikuya Yagisawa 47 Tokyo, Japan
Naoto Miura 47 Kokubunji, Japan

Hitachi, Ltd. 46 , United States
Tohru Kazawa 46 Kokubunji, Japan
Kenta SHIGA 46 Yokohama, Japan
Kinya Nakatsu 45 Hitachinaka, Japan

Hideki Miyazaki 45 Hitachi, Japan
Yuuichirou Ueno 44 Hitachi, Japan
Kenichi Takamoto 44 Odawara, Japan
Kazuma Yokoi 44 Hitachi, Japan

Shunji MAEDA 44 Yokohama, Japan
Yoshiki KANO 43 Sunnyvale, CA United States
Nobuo BENIYAMA 43 Yokohama, Japan
Kazuhisa Fujimoto 43 Kokubunji, Japan

JUNJI Ogawa 42 Sagamihara, Japan
Yutaka Takata 42 Ninomiya, Japan
Hiroo OKAMOTO 42 YOKOHAMA, Japan
Koji SONODA 42 Sagamihara, Japan

Yuji TSUSHIMA 41 Hachioji, Japan
Kenji Tsuchiya 41 Hitachi, Japan
Akio NAGASAKA 41 Kokubunji, Japan
Yoichi MIZUNO 40 Yokohama, Japan

Toshihiko Nakata 40 Hiratsuka, Japan
Hiroshi Suzuki 40 Sagamihara, Japan
Kazuhiko Mogi 39 Yokohama, Japan
Yoshihiro Ashi 38 Yokohama, Japan

Masaya Ichinose 38 Hitachiota, Japan
Harukazu Miyamoto 37 Kodaira, Japan
Motoo Futami 37 Hitachiota, Japan
Masahide Sato 37 Noda, Japan

Akinobu Shimada 37 Chigasaki, Japan
Takaki Kuroda 37 Machida, Japan
Shinji Fujiwara 37 Sagamihara, Japan
Yusuke Nonaka 37 Sagamihara, Japan

Norifumi Nishikawa 37 Machida, Japan
Masahiro WATANABE 36 Tokyo, Japan
Naoko IWAMI 36 Sagamihara, Japan
Izumi WATANABE 36 Hitachinaka, Japan

Akihiko Emori 36 Hitachi, Japan
Koji Nagata 36 Kaisei, Japan
Shunji KAWAMURA 36 Yokohama, Japan
Takafumi Ishitsu 35 Hitachi, Japan

Hiroshi KITAGUCHI 35 Naka, Japan
Tsunenori YAMAMOTO 35 Hitachi, Japan
Kenji Yamagami 35 Los Gatos, CA United States
Shuji Nakamura 35 Machida, Japan

Daisuke Shinohara 35 Yokohama, Japan
Hitoshi Kamei 35 Sagamihara, Japan
Yoshiaki Nakayoshi 34 Ooamishirasato, Japan
Kazuhiko Mogi 34 Tokyo, Japan

Recent patent applications by HITACHI, LTD.

HITACHI, LTD. based in Tokyo, JP has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:

HITACHI, LTD.

Top Inventors for applications by HITACHI, LTD.

Recent patent applications by HITACHI, LTD.

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